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The essential oil extracted from Anemia tomentosa (EOAT) has shown larvicidal potential against Aedes aegypti, based on methods in vitro and in silico. Chromatographic and spectrometric techniques (gas chromatography-mass spectrometry (CG-MS), gas chromatography-flame ionization detector (GC-FID)), as well as mono and bidimensional nuclear magnetic resonance spectroscopy (NMR) were used to assess 10 essential oil components. Chemical composition of essential oil comprised 87.51% sesquiterpenes, with emphasis on presilphiperfolan-1-ol (42.13%) and silphiperfol-5-ene (19.47%). Larvicidal assay conducted in vitro with EOAT has evidenced potential cytotoxic activity up to 48 h exposure to it; mortality rate observed for A. aegypti larvae exposed to essential oil reached 100%. Study conducted in silico with chemical compounds deriving from the herein investigated plant species has evidenced its potential to inhibit acetylcholinesterase in A. aegypti. Activity of triquinane sesquiterpenes ranging from -6.8 to -8.2 kcal mol-1 stood out in comparison to that of temephos (-7.5 kcal mol-1). Chemical compounds identified in the investigated essential oil presented low human and environmental toxicity, as observed in absorption, distribution, metabolism and excretion, and toxicity (ADMETox) predictions. (EOAT chromatographymass chromatography mass CGMS, CGMS CG MS , (CG-MS) chromatographyflame flame GCFID, GCFID GC FID (GC-FID)) NMR (NMR 1 components 8751 87 51 87.51 presilphiperfolan1ol presilphiperfolanol presilphiperfolan ol 42.13% 4213 42 13 (42.13% silphiperfol5ene silphiperfolene silphiperfol 5 ene 19.47%. 1947 19.47% . 19 47 (19.47%) 4 it A 100 100% 6.8 68 6 8 -6. 8.2 82 2 -8. mol1 mol mol- 7.5 75 7 (-7. mol1. mol-1) absorption distribution excretion ADMETox (ADMETox predictions (CG-MS (GC-FID) 875 87.5 42.13 421 (42.13 194 19.47 (19.47% 6. -6 8. -8 7. (-7 (GC-FID 87. 42.1 (42.1 19.4 (19.47 - (- 42. (42. 19. (19.4 ( (42 (19. (4 (19 (1

https://doi.org/10.21577/0103-5053.20240127

Growth of tamarind seedlings in different levels of shadowing and substrate composition
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Souza Salles, Josiane

; Costa, Edilson

; Freitas de Lima, Alexandre Henrique

; Souza Salles, Jussara

; Ferreira da Silva Binotti, Flávio

; da Costa Vieira, Gustavo Haralampidou

; da Silva Guimarães Júnnyor, Wellingthon

; Scaloppi Junior, Erivaldo José

Chilean journal of agricultural research

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Fev 2024, Volume 84 Nº 2 Páginas 166 - 180

Resumo: En | Texto: En | PDF: En

ABSTRACT Tamarind (Tamarindus indica L.) is a species with promising potential for commercial production; therefore, studies involving practices of conducting culture in the initial stage are essential. The present study aimed to evaluate different shading levels and substrate compositions in the seedling production of tamarind. The experimental design was completely randomized in a 4×4 factorial scheme, four levels of shading (0%, 18%, 30%, and 50%) and four substrates (pine bark-based substrate pure and mixed with 50% vermiculite, and sphagnum peat-based substrate pure and mixed with 50% vermiculite), with four replicates of four seedlings. Growth and biometric relationships were evaluated at 40 and 98 d after transplantation (DAT). The results reported that seedlings formed on the sphagnum peat-based substrate on pure or associated with vermiculite at 98 DAT had a height greater than 35 cm and a total 8.5 g DM. In contrast, seedlings produced in pine bark-based substrate did not reach 20 cm in height and had less than 3 g total DM. The condition of 30% and 50% shading promoted greater growth in height, reaching an average height greater than 40 cm, while in the full sun environment, seedlings showed an average of less than 35 cm; however, for the other variables, full sun environment did not differ from 30% shading, producing good quality seedlings. Thus, the cultivation of seedlings in an environment with 0% or 30% shading, associated with the sphagnum peat-based substrate pure or mixed with 50% vermiculite promoted the production of tamarind seedlings with vigorous growth. In the best environments, the best substrates increased, on average, 41.3% number of leaves, 80.5% shoot dry mass, 56.8% root dry mass, and 71.0% total dry mass. In the best substrates, the best environments increased, on average, 18.0% number of leaves, 20.7% shoot dry mass, 8.7% root dry mass, and 14.3% total dry mass.

https://doi.org/10.4067/s0718-58392024000200166

Bayesian inference applied to soybean grown under different shading levels using the multiple-trait model multipletrait multiple trait
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Silva Júnior, Antônio Carlos da

; Costa, Weverton Gomes da

; Guimarães, Amanda Gonçalves

; Moura, Waldênia de Melo

; Campos, Leonardo José Motta

; Rodrigues, Reimário de Castro

; Bhering, Leonardo Lopes

; Cruz, Cosme Damião

; Evaristo, Anderson Barbosa

Scientia Agricola

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2024, Volume 81 elocation e20220233

Resumo: En | Texto: En | PDF: En

ABSTRACT present study aimed to determine the effects of different light restriction levels (shading levels) on soybean genetic parameters using a Bayesian multi-trait model (MTM) and select high-yielding soybean cultivars. Eighteen commercial soybean cultivars bred in a soybean breeding program were evaluated over two agricultural seasons. Three shading levels were used over two agricultural crop seasons, giving six treatments (light restriction × crop season). The experiments were arranged in a randomized complete block design with six treatments replicated thrice. The genetic values and parameters were estimated using a Monte Carlo Markov Chain algorithm. Broad-sense heritability range from 0.2093 to 0.7153. The lowest genotypic variance estimate was observed at the 45 % photosynthetically active radiation level in the 2019/2020 crop season year compared with that of other shading levels. Furthermore, a 40 % selection intensity had the highest soybean yield under different shading levels. The Bayesian MTM combined with the factor analysis and genotype-ideotype distance method can be used to evaluate and select soybean genotypes considering different shading levels. The soybean cultivars 8579RSF, NS8338, NS7901, NS7667, RK8115, and 8473RSF had higher genetic potential than other cultivars under different shading levels. multitrait multi trait (MTM highyielding high yielding seasons season. . season) thrice algorithm Broadsense Broad sense 02093 0 2093 0.209 07153 7153 0.7153 4 20192020 2019 2020 2019/202 Furthermore genotypeideotype genotype ideotype 8579RSF RSF NS8338 NS NS7901 NS7667 RK8115 RK 0209 209 0.20 0715 715 0.715 2019202 201 202 2019/20 NS833 NS790 NS766 RK811 020 20 0.2 071 71 0.71 201920 2019/2 NS83 NS79 NS76 RK81 02 2 0. 07 7 0.7 20192 2019/ NS8 NS7 RK8

https://doi.org/10.1590/1678-992x-2022-0233

Agronomic performance of canola hybrids in Campos das Vertentes - MG
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Pimentel, Guilherme Vieira

; Martins, Inara Alves

; Santiago, Alexsandro Carvalho

; Costa, Natália

; Silva, Rodrigo Nogueira

; Moreira, Silvino Guimarães

Revista Ceres

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2024, Volume 71 elocation e71021

Resumo: En | Texto: En | PDF: En

ABSTRACT Canola has considerable global significance in edible oil and biodiesel production. In Brazil, canola has adapted to the temperate South region, where production is now concentrated. However, research indicates potential for growing the crop in warmer regions. This study evaluated the performance of canola hybrids under growing conditions in the Campo das Vertentes mesoregion, Minas Gerais, during the 2019 and 2021 harvests. The experiments were conducted in a randomized block 6 × 6 factorial design, with four replicates. Six canola hybrids, Hyola 433, Hyola 575 CL, Nuola 300, Hyola 571 CL, Diamond, and ALHT B4, and six sowing dates: 02/15/2019, 02/28/2019, 03/20/2019, 04/09/2019, 02/22/2021, and 03/11/2021 were tested. The plant height, total number of siliques per plant, number of grains per silique, grain yield, and canola oil yield were evaluated. The Nuola 300 and Hyola 575 CL hybrids showed superior grain and oil yields, indicating potential success in growing in the Brazilian Cerrado region. Findings indicated an optimal sowing period in the Campo das Vertentes region until March. These results stress the importance of strategically selecting hybrids and sowing timelines to maximize canola yield in the region under study. Brazil concentrated However regions mesoregion Gerais 201 202 harvests design replicates 433 57 Diamond B4 B dates 02152019 02 15 02/15/2019 02282019 28 02/28/2019 03202019 03 20 03/20/2019 04092019 04 09 04/09/2019 02222021 22 02/22/2021 03112021 11 03/11/202 tested height silique 30 yields March 43 5 0215201 0 1 02/15/201 0228201 2 02/28/201 0320201 03/20/201 0409201 04/09/201 0222202 02/22/202 0311202 03/11/20 3 4 021520 02/15/20 022820 02/28/20 032020 03/20/20 040920 04/09/20 022220 02/22/20 031120 03/11/2 02152 02/15/2 02282 02/28/2 03202 03/20/2 04092 04/09/2 02222 02/22/2 03112 03/11/ 0215 02/15/ 0228 02/28/ 0320 03/20/ 0409 04/09/ 0222 02/22/ 0311 03/11 021 02/15 022 02/28 032 03/20 040 04/09 02/22 031 03/1 02/1 02/2 03/2 04/0 03/ 02/ 04/

https://doi.org/10.1590/0034-737x2024710021

Chitosan/Poly(2-(diisopropylamino)ethyl Methacrylate-Based pH-Sensitive Magnetic Composite for Application in Avermectins Adsorption in Aqueous Medium Chitosan/Poly2diisopropylaminoethyl ChitosanPoly2diisopropylaminoethyl ChitosanPolydiisopropylaminoethyl Chitosan/Poly 2 diisopropylamino ethyl Chitosan Poly MethacrylateBased Methacrylate Based pHSensitive pH Sensitive Poly2diisopropylaminoethyl diisopropylaminoethyl ChitosanPoly Polydiisopropylaminoethyl
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Teixeira, Leila S.

; Carvalho, Stephanne Y. B. de

; Santos, Ana Cláudia dos

; Borges, Marcella M. C.

; Vieira, Sara S.

; Borges, Keyller B.

; Guimarães, Luiz Gustavo L.

Journal of the Brazilian Chemical Society

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2024, Volume 35 Nº 9 elocation e-20240048

Resumo: En | Texto: En | PDF: En

A new composite material with magnetic and pH-responsive properties, composed of chitosan/poly(2-diisopropylamino)ethyl methacrylate (Fe3O4/SiO2/CS/PDPA) was developed with the purpose of removing avermectins in aqueous media. The material was characterized by different techniques to evaluate its characteristics. The adsorption process was investigated through the optimization of some parameters, with the most favorable results at pH 8.0, using 20 mg of adsorbent and stirring for 5 min. Under such conditions, the material showed adsorption efficiency of around 80.5, 69.9, and 74.8% for eprinomectin, doramectin and ivermectin, respectively. The adsorption mechanism was investigated using the pseudo-second order kinetic model and the Langmuir-Freundlich dual site isotherm model. Thermodynamic analysis indicated that the adsorption process is exothermic and spontaneous. The material also showed good regenerative capacity, allowing several reuse cycles. The results obtained suggest that the synthesized material has potential application as an adsorbent in the removal of avermectins from aqueous samples. pHresponsive responsive properties chitosan/poly2diisopropylaminoethyl chitosanpoly2diisopropylaminoethyl chitosanpolydiisopropylaminoethyl chitosan/poly 2 diisopropylamino ethyl chitosan poly Fe3O4/SiO2/CS/PDPA Fe3O4SiO2CSPDPA FeOSiOCSPDPA Fe3O4 SiO2 CS PDPA Fe O SiO (Fe3O4/SiO2/CS/PDPA media characteristics parameters 80 8 0 8.0 min conditions 805 80.5 699 69 9 69.9 748 74 74.8 eprinomectin ivermectin respectively pseudosecond pseudo second LangmuirFreundlich Langmuir Freundlich spontaneous capacity cycles samples poly2diisopropylaminoethyl diisopropylaminoethyl chitosanpoly CSPDPA FeO Fe3O 8. 80. 6 69. 7 74. polydiisopropylaminoethyl

https://doi.org/10.21577/0103-5053.20240048

Nitrogen sources on agronomic traits in carioca common bean lines developed under mineral nitrogen fertilization
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Dias, Polianna Alves Silva

; Melo, Patrícia Guimarães Santos

; Ferreira, Enderson Petrônio de Brito

; Melo, Leonardo Cunha

; Souza, Thiago Lívio Pessoa Oliveira de

; Faria, Luís Cláudio de

; Almeida, Válter Martins de

; Pereira, Helton Santos

Bragantia

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2024, Volume 83 elocation e20230285

Resumo: En | Texto: En | PDF: En

ABSTRACT Despite the importance of symbiotic nitrogen fixation (SNF) as a nitrogen source for leguminous plants, there are few reports of common bean breeding programs aiming at efficiency in SNF. This study aimed to analyze the interaction between elite lines of common bean with carioca grains and the nitrogen source (mineral fertilizer or SNF), and to select lines with wide adaptability, stability, high agronomic performance, and superiority in nodulation. Nineteen lines with carioca grains were evaluated in 12 environments in Brazil. In each environment, one experiment with mineral nitrogen fertilization and another with Rhizobium inoculation were set up, and agronomic traits were evaluated. Nodulation traits were evaluated in two years at one out of five location. Analyses of variance and of stability were performed, and Spearman’s correlations and the coincidence of selection of the best lines in both N sources were estimated. There is an effect of the N source and of genetic variability for all the traits. The lines were higher yielding under fertilization with mineral fertilizer, but they were more resistant to lodging when they were inoculated. The line by N source interaction was significant for 100-seed weight and resistance to lodging, but it did not affect selection of the best lines in the N sources. Eleven out of the 19 lines had no difference in grain yields between the two N sources. The line CNFC 15086 is recommended for growing in both N sources since it presented the highest yield and high adaptability and stability under both sources. The genotypes BRS Sublime, CNFC 15010, and CNFC 15003 had a high relative nodulation index and can be used in crosses with higher yielding lines. SNF (SNF plants SNF, , SNF) performance 1 Brazil environment up location performed Spearmans Spearman s estimated inoculated 100seed seed 100 1508 Sublime 15010 1500 10 150 1501 15

https://doi.org/10.1590/1678-4499.20230285

Yield and centesimal characterization of collagen extracted from the skin of peacock bass Cichla monoculus
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Nóbrega, T. C.

; Guimarães, C. C.

; Barai, A. A.

; Mourão, L. S.

; Oliveira, P. R.

; Inhamuns, A. J.

; Oliveira, A. T.

Brazilian Journal of Biology

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2024, Volume 84 elocation e277637

Resumo: En Pt | Texto: En Pt | PDF: En | PDF: Pt

Abstract Fish processing provides waste of around 50.0% to 70.0% of the animal's initial weight, especially the skin. Thus, this residue contains the by-product that allows biopolymers to be obtained, highlighting collagen, which can be widely used in different areas. The present study aimed to evaluate the yield of collagen extracted from peacock bass Cichla monoculus skin and to characterize them physicochemically. Twenty-five peacock bass with an average weight of 646 ± 175 g were used. The skin samples were removed by manual filleting and weighed, with an average yield of 3.7%. Subsequently, such models were analyzed for chemical composition, showing 61.8% for moisture, 29.3% for crude protein, 1.5% for ash, 6.3% for total lipids, and 1.2% for non-nitrogenous extract (NNE). Acid-soluble collagen (ASC) presented an average yield of 8.2%, presenting in its analysis of centesimal composition 12.5% of moisture, 82.6% of crude protein, 1.1% of ash, 2.6% of total lipids, and 1.2% NNE. The skin and collagen extracted from the tucunaré skin have technological potential for use in the preparation of products, adding value to these by-products from fish processing. 500 50 0 50.0 700 70 70.0 animals animal s Thus byproduct product obtained areas physicochemically Twentyfive Twenty five 64 17 weighed 37 3 7 3.7% Subsequently 618 61 8 61.8 moisture 293 29 29.3 protein 15 1 5 1.5 ash 63 6 6.3 lipids 12 2 1.2 nonnitrogenous non nitrogenous NNE . (NNE) Acidsoluble Acid soluble ASC (ASC 82 8.2% 125 12.5 826 82.6 11 1.1 26 2.6 products byproducts 50. 70. 3.7 61. 29. 1. 6. (NNE 8.2 12. 82. 2. 3. 8.

Resumo O processamento do pescado fornece em resíduos cerca de 50,0% a 70,0% do peso inicial do animal, destacando-se a pele. Assim, nesse resíduo encontra-se o subproduto que permite a obtenção de biopolímeros, dando destaque ao colágeno, que pode amplamente ser utilizado em diversas áreas. O presente estudo objetivou fazer uma avaliação do rendimento do colágeno extraído da pele do tucunaré Cichla monoculus, e caracterizá-los físico-quimicamente. Foram utilizados 25 tucunarés com peso médio de 646 ± 175 g. As amostras de pele foram retiradas por filetagem manual e pesadas, apresentando rendimento médio de 3,7%. Posteriormente, tais amostras foram analisadas quanto à composição centesimal, apresentando os valores de 61,8% para umidade, 29,3% para proteína bruta, 1,5% para cinzas, 6,3% para lipídios totais e 1,2% para extrato não nitrogenado (ENN). Colágeno solúvel em ácido (ASC) apresentou o rendimento médio de 8,2%, apresentando em sua análise de composição centesimal 12,5% de umidade, 82,6% de proteína bruta, 1,1% de cinzas, 2,6% de lipídios totais e 1,2% ENN. A pele e o colágeno extraído da pele do tucunaré apresentam potencial tecnológico para aproveitamento na elaboração de produtos, agregando valor a esses subprodutos provenientes do processamento do pescado. 500 50 0 50,0 700 70 70,0 animal destacandose destacando se Assim encontrase encontra biopolímeros áreas monoculus caracterizálos caracterizá los físicoquimicamente. físicoquimicamente físico quimicamente. quimicamente físico-quimicamente 2 64 17 g pesadas 37 3 7 3,7% Posteriormente 618 61 8 61,8 umidade 293 29 29,3 bruta 15 1 5 1,5 cinzas 63 6 6,3 12 1,2 ENN . (ENN) ASC (ASC 82 8,2% 125 12,5 826 82,6 11 1,1 26 2,6 produtos 50, 70, 3,7 61, 29, 1, 6, (ENN 8,2 12, 82, 2, 3, 8,

https://doi.org/10.1590/1519-6984.277637

Characterizing functional morphology and trophic niches in a neotropical Characiforms (Actinopterygii: Teleostei) assemblage in middle Munim River basin, Maranhão, Brazil Actinopterygii (Actinopterygii Teleostei basin Maranhão
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Oliveira, E. S.

; South, J.

; Guimarães, E. C.

; Vieira, L. O.

; Campos, D. S.

; Ottoni, F. P.

Brazilian Journal of Biology

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2024, Volume 84 elocation e279881

Resumo: En Pt | Texto: En Pt | PDF: En | PDF: Pt

Abstract Understanding how functionally similar species segregate resources to minimize competition is vital for predicting evolutionary factors and patterns of coexistence. We conducted a study in Mata de Itamacaoca, in the middle Munim River basin, Maranhão, northeastern Brazil, to characterize the functional morphology and trophic niches of five coexisting Characiform species in this area - including a recently described species, and to investigate whether their functional morphology is a key determinant of their trophic niches. Our analysis of functional morphology and diet, employing linear measurements to predict dietary specializations, showed that these species are predominantly generalist insectivores with a significant morphological overlap. This study underscores the influence of species' natural history on their ecological characteristics, contributing to more effective conservation strategies. coexistence Itamacaoca basin Maranhão Brazil diet specializations overlap characteristics strategies

Resumo Compreender como espécies funcionalmente semelhantes segregam recursos para minimizar a competição é vital para prever fatores evolutivos e padrões de coexistência. Conduzimos um estudo na Mata de Itamacaoca, na bacia do médio rio Munim, Maranhão, nordeste do Brasil, para caracterizar a morfologia funcional e nichos tróficos de cinco espécies de Characiformes coexistentes nesta área - incluindo uma espécie recentemente descrita, e investigar se a morfologia funcional dessas espécies é determinante para seus nichos tróficos. Nossa análise da morfologia funcional e da dieta, empregando medidas lineares para prever especializações alimentares, mostrou que essas espécies são predominantemente insetívoras generalistas com sobreposição morfológica significativa. Este estudo ressalta a influência da história natural das espécies em suas características ecológicas, contribuindo para estratégias de conservação mais eficazes. coexistência Itamacaoca Munim Maranhão Brasil descrita dieta alimentares significativa ecológicas eficazes

https://doi.org/10.1590/1519-6984.279881

Superhydrophobic Surfaces Based on Nickel Stearate: An Innovative Approach to Coatings on 7050 Aeronautical Aluminum Alloy Stearate 705 70 7
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Silva, Jedaías J. da

; Guimarães, Ana L. C.

; Silva Filho, Walter L. C. da

; Silva, Rafael G. C. da

; Malta, Maria I. C.

; Morais, Dayanne D. S.

; Urtiga Filho, Severino L.

; Vieira, Magda R. S.

Materials Research

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2024, Volume 27 Supl. 1 elocation e20230562

Resumo: En | Texto: En | PDF: En

A metallic surface can exhibit low wettability through the formation of a rough structure with micro/nanometric dimensions combined with a surface energy-reducing agent. When the contact and sliding angles are ≥ 150° and ≤ 10°, respectively, the surface is classified as superhydrophobic (SHS). The study aimed to electrodeposit a microstructure with micronanometric roughness of nickel, stearic acid (Al/Ni-SA), and nickel, stearic acid with multi-layered carbon nanotubes (Al/Ni-SA-MWCNT) on aeronautical aluminum 7050. The obtained contact angles were close to 160°, and sliding angles were less than 1°, characterizing the superhydrophobic and self-cleaning nature. Freezing tests were conducted, and the deposit with MWCNT showed longer freezing times at -22°C. The Al/Ni-SA-MWCNT condition also exhibited the best corrosion resistance with corrosion current superior by two orders of magnitude compared to the Al/Ni-Sa condition. The coatings demonstrated impressive performance, achieving corrosion inhibition efficiencies close to 100%. micro nanometric energyreducing energy reducing agent 150 10 10° respectively SHS. SHS . (SHS) nickel Al/NiSA, AlNiSA Al/Ni SA , Al Ni (Al/Ni-SA) multilayered multi layered Al/NiSAMWCNT AlNiSAMWCNT (Al/Ni-SA-MWCNT 7050 160 160° 1 1° selfcleaning self cleaning nature conducted 22°C. 22C C 22 -22°C Al/NiSa AlNiSa Sa performance 100 100% 15 (SHS NiSA Al/NiSA AlNi (Al/Ni-SA NiSAMWCNT 705 16 22°C 2 NiSa 70 7

https://doi.org/10.1590/1980-5373-mr-2023-0562

10.

Novelties to the vascular Flora of the Ibitipoca Mountains, Minas Gerais, Brazil Mountains Gerais
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Toledo, Cássio A. P.

; Souza, Lukas R.

; Diniz, Adriana P.

; Santos, Adrielle J. M.

; Araujo, Carina de

; Graciano, Diego S.

; Arantes, Fabíula M.

; Sabino, Gabriel P.

; Guimarães, Gabriel S.

; Onorato, Geovana de C.

; Andrella, Giovani C.

; Waga, Isabela M.

; Castilho, Jade

; Silva, João P. S.

; Manoel, Laís B.

; Lima, Mariana C. A.

; Araújo, Michelly D. F.

; Feliz, Pablo

; Gaem, Paulo H.

; Luiz, Pedro L.

; Völtz, Rafael R.

; Gerace, Samuele

; Sawakuchi, Sonia

; Ivanauskas, Natália M.

; Koch, Ingrid

; Forzza, Rafaela C.

; Souza, Vinicius C.

; Rodrigues, Ricardo R.

Biota Neotropica

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2024, Volume 24 Nº 2 elocation e20231560

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo A Serra do Ibitipoca ocorre no sudeste do estado de Minas Gerais, sudeste do Brasil, e inclui um mosaico de diferentes tipos de vegetação, como parte do domínio da Mata Atlântica. Tal heterogeneidade é resultado da ocorrência de diversos ecótonos na região, considerados áreas de amortecimento essenciais para manutenção da biodiversidade e estrutura de ecossistemas adjacentes. Dada a importância destes ambientes para conservação da biodiversidade, inventários florísticos são importantes para catalogar a riqueza de plantas em áreas naturais, onde espécies e paisagens têm sido destruídas, especialmente nas últimas décadas. Para contribuir com o aumento do conhecimento sobre a Flora vascular na Serra do Ibitipoca, um inventário florístico foi conduzido em áreas privadas adjacentes ao Parque Estadual do Ibitipoca. As descobertas mais relevantes do presente estudo incluem: caracterização dos diferentes tipos de vegetação, 17 novos registros para a Flora de Minas Gerais, coleta de 288 espécies nunca registradas para o parque (80% de dissimilaridade – especialmente devido à ocorrência e tamanho de diferentes fitofisionomias entre as áreas) e presença de 31 espécies ameaçadas. Além disso, discussões sobre esforços para conservação e políticas públicas são apresentadas. Gerais Brasil vegetação Atlântica região naturais destruídas décadas incluem 1 28 80% 80 (80 3 ameaçadas disso apresentadas 2 8 (8 (

Abstract The Ibitipoca Mountains occur in southeastern Minas Gerais state, Southeast Brazil, and includes a mosaic of different vegetation types, as part of the Atlantic Forest domain. Such heterogeneity results in the occurrence of several ecotones in the region, considered essential buffer zones for maintaining biodiversity and structure among adjacent ecosystems. Given the importance of these environments for biodiversity conservation, floristic surveys are important to catalogue plant richness in natural areas, where species and landscapes have been destroyed, especially over the last decades. To contribute to increase the knowledge on the vascular Flora in the Ibitipoca Mountains, a floristic inventory was undertaken in private properties located in the boundaries of “Parque Estadual do Ibitipoca” (Ibitipoca State Park). Relevant findings of the present study include: characterization of the different vegetation types, 17 new records for the Flora of Minas Gerais, collection of 288 species never recorded in the state park (80% dissimilarity – especially due to the occurrence and size of different phytophysiognomies between these areas) and presence of 31 threatened species. In addition, discussions about conservation efforts and public policies are presented. Brazil types domain region ecosystems areas destroyed decades Parque Park. Park . Park) include 1 28 80% 80 (80 3 addition presented 2 8 (8 (

https://doi.org/10.1590/1676-0611-bn-2023-1560

11.

MECHANOCHEMISTRY APPLIED TO THE SYNTHESIS OF 2-PHENYLIMIDAZO[1,2-α]PYRIDINE AS A TEACHING TOOL FOR GREEN CHEMISTRY 2PHENYLIMIDAZO1,2αPYRIDINE 2PHENYLIMIDAZO12αPYRIDINE PHENYLIMIDAZOαPYRIDINE 2 PHENYLIMIDAZO 1,2 α PYRIDINE 1 2PHENYLIMIDAZO1 2αPYRIDINE αPYRIDINE 12 1, 2PHENYLIMIDAZO
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S. Neto, José S.

; Guimarães, Leonardo Victor E.

; Coelho, Filipe T.

; Lião, Luciano M.

; Coelho, Felipe L.

Química Nova

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2024, Volume 47 Nº 9 elocation e-20240048

Resumo: En | Texto: En | PDF: En

In the present work, we developed an experimental class for undergraduate students concerning the linear synthesis of 2-phenylimidazo[1,2-α]pyridine through mechanochemical techniques. This approach aims to conceptualize the green chemistry principles through a safe, robust, atom-economic, energy-efficient, and solvent-free method for preparing these classes of compounds by manual grinding and vortex mixing. The methodology was easily applied in experimental classes for chemistry students and could be easily expanded to other courses such as pharmacy and biotechnology. work 2phenylimidazo1,2αpyridine 2phenylimidazo12αpyridine phenylimidazoαpyridine 2 phenylimidazo 1,2 α pyridine 1 techniques safe robust atomeconomic, atomeconomic atom economic, economic atom-economic energyefficient, energyefficient energy efficient, efficient energy-efficient solventfree solvent free mixing biotechnology 2phenylimidazo1 2αpyridine αpyridine 12 1, 2phenylimidazo

https://doi.org/10.21577/0100-4042.20240048

12.

Frugivorous flies (Diptera: Tephritidae; Lonchaeidae) associated with guava tree: species diversity, parasitoids and population fluctuation in the Espírito Santo state, Brazil Diptera (Diptera Tephritidae Lonchaeidae tree diversity state
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Martins, David dos Santos

; Fornazier, Maurício Lorenção

; Uramoto, Keiko

; Guimarães, Jorge Anderson

; Ferreira, Paulo Sérgio Fiuza

; Ventura, José Aires

; Guarçoni, Rogério Carvalho

; Culik, Mark Paul

; Zanuncio Junior, José Salazar

; Fornazier, Maurício José

Pesquisa Agropecuária Tropical

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2024, Volume 54 elocation e77329

Resumo: En Pt | Texto: En Pt | PDF: En | PDF: Pt

ABSTRACT The commercial cultivation of guava tree (Psidium guajava L.) occurs in all Brazilian regions, where fruit flies cause direct losses to production and affect fresh fruit exports due to quarantine restrictions. This study aimed to determine the incidence, diversity and population fluctuations of frugivorous fly species that infest guava trees, as well as to survey their associated parasitoids, in the Espírito santo state, Brazil. Fruits and flies captured in traps were sampled in three guava-producing regions. Anastrepha fraterculus (Wied.) was the main species associated with guava trees, particularly in the coastal region. Anastrepha chiclayae was recorded for the first time associated with guava trees in Brazil. Medfly was not considered an important species. Neosilba zadolicha was the most common Lonchaeidae species collected, but with low importance. Higher populations of frugivorous flies were found in hot and humid areas. Two population peaks of A. fraterculus were observed during October (spring) and from March to April (summer-autumn). Tephritid flies occurred in all surveyed regions, with higher infestations in the coastal area, followed by the northern and mountain regions, respectively. Doryctobracon areolatus and Aganaspis pelleranoi were the most common species of parasitoids; however, the natural biological control of frugivorous flies in guava trees was very low and had little impact on fruit fly populations. Psidium L. L regions restrictions incidence parasitoids state Brazil guavaproducing producing Wied. Wied (Wied. region collected importance areas A spring (spring summerautumn. summerautumn summer autumn . (summer-autumn) area respectively however (Wied (summer-autumn

RESUMO O cultivo comercial de goiabeira (Psidium guajava L.) ocorre em todas as regiões brasileiras, onde moscas-das-frutas causam perdas diretas na produção e afetam as exportações de frutas frescas devido a restrições quarentenárias. Objetivou-se determinar a incidência, diversidade e flutuações populacionais de espécies de moscas frugívoras que infestam goiabeira e levantar seus parasitoides associados, no estado do Espírito Santo, Brasil. Frutos e moscas capturadas por armadilhas foram amostrados em três regiões produtoras de goiaba. Anastrepha fraterculus (Wied.) foi a principal espécie associada a goiabeiras, principalmente na região litorânea. Anastrepha chiclayae foi registrada pela primeira vez associada a goiabeiras no Brasil. Medfly não foi uma espécie importante. Neosilba zadolicha foi a espécie de Lonchaeidae mais comum, mas com baixa importância. Maiores populações de moscas frugívoras foram encontradas em regiões quentes e úmidas. Dois picos populacionais de A. fraterculus foram observados em outubro (primavera) e de março a abril (verão-outono). Tefritídeos ocorreram em todas as regiões pesquisadas, com maiores infestações na área litorânea, seguida da norte e serrana, respectivamente. Doryctobracon areolatus e Aganaspis pelleranoi foram as espécies de parasitoides mais comuns; no entanto, o controle biológico natural de moscas frugívoras em goiabeira foi muito baixo e apresentou controle populacional de baixo impacto. Psidium L. L brasileiras moscasdasfrutas das quarentenárias Objetivouse Objetivou se incidência associados Santo Brasil goiaba Wied. Wied (Wied. litorânea importante comum importância úmidas A primavera (primavera verãooutono. verãooutono verão outono . (verão-outono) pesquisadas serrana respectivamente comuns entanto impacto (Wied (verão-outono

https://doi.org/10.1590/1983-40632024v5477329

13.

Daytime gas exchange in soybean plants submitted to waterlogging and shading
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Cecatto Júnior, Roberto

; Guimarães, Vandeir Francisco

; Schons, Bruna Caroline

; Suss, Anderson Daniel

; Bulegon, Lucas Guilherme

; Brito, Tauane Santos

; Silva, André Silas Lima

; Anklan, Michele Aline

Ciência Rural

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2024, Volume 54 Nº 11 elocation e20230537

Resumo: En Pt | Texto: En Pt | PDF: En | PDF: Pt

ABSTRACT: Aerobic respiration declines in the root tissue of soybean plants exposed to waterlogged soil with a low oxygen content, causing metabolic disorders that negatively affect gas exchange and photosynthetic activity, hampering growth and production. As such, this study to investigated daytime gas exchange, relative chlorophyll content, specific leaf area (SLA) and photosynthetic activity curves in response to photosynthetic photon flux density (PPFD) in soybean plants grown under different conditions: no stress (control), shading, waterlogged soil, and waterlogged soil + shading. Soybean plants exposed to either waterlogging or shading and both conditions simultaneously exhibited reduced photosynthesis linked to lower stomatal opening. Plants submitted to shading showed an increase in SLA, quantum yield and photosynthetic rates, while those grown in waterlogged soil, in full sun, exhibited chlorotic leaves and low apparent quantum yield, resulting in low photosynthetic rates under shading and high light levels. Thus, waterlogging and shading in isolation or combined, compromise daytime gas exchange and alter photosynthetic activity in plants. ABSTRACT content production such SLA (SLA PPFD (PPFD control, control , (control) opening sun levels Thus combined (control

RESUMO: Os tecidos radiculares de plantas de soja em solo encharcado, com baixo teor de oxigênio, apresentam reduzida atividade da respiração aeróbica, causando desordens metabólicas que afetam negativamente as trocas gasosas e atividade fotossintética, prejudicando o crescimento e produção. Assim, o estudo teve como objetivo investigar as trocas gasosas ao longo do dia, teor relativo de clorofila, área foliar específica e curvas de atividade fotossintética em resposta à densidade de fluxo de fótons fotossinteticamente ativos de plantas de soja desenvolvendo em condições ambientais distintas: sem estresse, com restrição luminosa, em solo encharcado, e em solo encharcado + restrição luminosa. As plantas de soja expostas ao encharcamento do solo e a restrição luminosa de forma isolada ou em conjunto apresentaram redução da fotossíntese associada à menor abertura estomática. Plantas submetidas a restrição luminosa apresentaram folhas com incremento na área foliar específica, maior eficiência quântica aparente e incremento nas taxas fotossintéticas em ambiente com baixa luminosidade. Plantas em solo encharcado, a pleno sol, apresentaram folhas cloróticas e baixa eficiência quântica aparente e consequentemente apresentaram baixas taxas fotossintéticas sob luminosidade baixa e luminosidade elevada. Desta forma, o encharcamento do solo e restrição luminosa de forma isolada ou conjunta prejudicam as trocas gasosas ao longo do dia e causam alterações na atividade fotossintética das plantas. RESUMO oxigênio aeróbica produção Assim clorofila distintas estresse estomática sol elevada

https://doi.org/10.1590/0103-8478cr20230537

14.

Cultivation of yellow melon subjected to different irrigation levels and application of arbolina® biostimulant arbolina
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Vieira, Nicolly Q. B.

; Simões, Welson L.

; Silva, José A. B. da

; Salviano, Alessandra M.

; Silva, Jucicléia S. da

; Braga, Marcos B.

; Guimarães, Miguel J. M.

; Martins, Marcelo da S.

Revista Caatinga

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2024, Volume 37 elocation e12452

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Objetivou-se avaliar as características fisiológicas e bioquímicas durante a floração, e a produtividades de frutos totais e comerciais de melão amarelo submetidas à a diferentes lâminas de irrigação e aplicação do bioestimulante Arbolina. O delineamento experimental foi em blocos casualizados, em arranjo fatorial 2×2×5 de parcelas sub-subdivididas, com quatro repetições. As parcelas consistiram de 2 formas de aplicação de bioestimulante (fertirrigação e pulverização), as subparcelas consistiram de 2 lâminas de irrigação (40% e 100% da evapotranspiração da cultura - ETc) e as subsubparcelas consistiram de 5 doses do bioestimulante Arbolina® (0; 0,1; 0,2; 0,4; e 0,8 L ha-1). As mudas foram transplantadas para o solo com espaçamento de 2,0 × 0,3 m, com irrigação por gotejamento. As adubações de plantio e cobertura foram realizadas via fertirrigação. As variáveis analisadas foram: produtividade total e comercial, taxa fotossintética, condutância estomática, concentração interna de CO2, transpiração e temperatura foliar, teores de clorofilas a e b, eficiência do uso de água e conteúdo relativo de água. As variáveis bioquímicas avaliadas foram: teores foliares de carboidratos, amido, e proteínas solúveis totais. A aplicação do bioestimulante por pulverização teve melhor efeito no processo de produção de plantas de melão amarelo, promovendo melhor eficiência metabólica nas células formadoras de órgãos, incluindo o processo de formação morfológica e constituição bioquímica dos frutos. Recomenda-se a utilização do bioestimulante nas doses de 0,446 e 0,443 L ha-1 combinadas com a utilização de 100% da ETc para atingir a maior produtividade total e comercial. Objetivouse Objetivou se floração Arbolina casualizados 225 2×2× subsubdivididas, subsubdivididas sub subdivididas, subdivididas sub-subdivididas repetições fertirrigação pulverização, , pulverização) 40% 40 (40 100 0 (0 0,1 01 1 0,2 02 0,4 04 4 08 8 0, ha1. ha1 ha . ha-1) 20 2, 03 3 m gotejamento comercial fotossintética estomática CO2 CO foliar b carboidratos amido órgãos Recomendase Recomenda 0446 446 0,44 0443 443 ha- 22 2×2 (4 10 ( 044 44 2×

ABSTRACT The objective was to evaluate the physiological and biochemical characteristics during flowering, and the total and marketable fruit yield of yellow melon subjected to different irrigation depths and application of the biostimulant Arbolina®. The experimental design was randomized blocks, in a 2×2×5 factorial arrangement of split-split plots, with four replicates. Plots consisted of 2 forms of biostimulant application (fertigation and spraying), subplots consisted of 2 irrigation depths (40% and 100% of crop evapotranspiration - ETc) and sub-subplots consisted of 5 doses of the biostimulant Arbolina® (0; 0.1; 0.2; 0.4; and 0.8 L ha-1). Melon seedlings were transplanted into the soil at a spacing of 2.0 × 0.3 m, with drip irrigation. Basal and topdressing fertilization was performed via fertigation. The variables evaluated were: for total yield and marketable yield, photosynthetic rate, stomatal conductance, internal CO2 concentration, transpiration and leaf temperature, chlorophyll a and b contents, water use efficiency and relative water content. The biostimulant application by spraying had a better effect on the production process of yellow melon plants, promoting better metabolic efficiency in organ-forming cells, including the process of morphological formation and biochemical constitution of the fruits. It is recommended to use of the biostimulant doses of 0.446 and 0.443 L ha-1 combined with the use of 100% of ETc to achieve the highest total and marketable productivity. flowering Arbolina blocks 225 2×2× splitsplit split plots replicates fertigation spraying, , spraying) 40% 40 (40 100 subsubplots sub 0 (0 0.1 01 1 0.2 02 0.4 04 4 08 8 0. ha1. ha1 ha . ha-1) 20 2. 03 3 m rate conductance CO concentration temperature contents content plants organforming organ forming cells fruits 0446 446 0.44 0443 443 ha- productivity 22 2×2 (4 10 ( 044 44 2×

https://doi.org/10.1590/1983-21252024v3712452rc

15.

Production of Mimosa caesalpiniifolia benth seedlings using a water-absorbing polymer and different water regimes waterabsorbing absorbing
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Antas, Renato N.

; Mendonça, Luciana F. de M.

; Silva, Jodiene do N.

; Guimarães, Alisson G. C.

; Araújo, Larissa de M.

; Freire, Antonio L. de O.

; Medeiros, José C. G. de

; Lucena, João V. P. de

Revista Caatinga

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2024, Volume 37 elocation e12314

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Mimosa caesalpiniifolia Benth é uma espécie arbórea nativa da caatinga comumente utilizada em programas de recuperação de áreas degradadas. Um fator que pode afetar seu desenvolvimento é a falta de água. Assim, é fundamental buscar alternativas que aumentem a tolerâncias das plantas a falta d’água, desse modo uma dessas alternativas é o uso dos polímeros hidroabsorventes. Neste contexto, o objetivo foi avaliar doses do polímero hidrorretentor sob diferentes turnos de rega na produção de mudas de sabiá. O experimento foi conduzido no Viveiro Florestal da Universidade Federal de Campina Grande, campus de Patos. As sementes foram semeadas em garrafas PET (Polietileno Tereftalato) de 2 litros cortadas ao meio, contendo os substratos solo e esterco bovino, na proporção 2:1. Foi utilizado o delineamento inteiramente casualizado, em esquema fatorial 4 x 2, sendo 04 doses do hidrogel (0, 1g, 2g e 3g por litro de substrato) e dois turnos de rega (irrigação diária). Ao término do experimento (75 dias) foi avaliado número de folhas, diâmetro do colo, altura de planta, crescimento do sistema radicular, massa seca da parte aérea, massa seca do sistema radicular, teor relativo de água (TRA), teor de clorofila e trocas gasosas, além do Índice de Qualidade de Dickson (IQD). Quase todas as vaiáveis não se deferiram estatisticamente, mas ao término do experimento, conclui-se que a dose 2g de hidrogel promove maiores incrementos na produção de mudas de sabia e ausência de hidrogel promove maior crescimento do sistema radicular independente do turno de rega. degradadas Assim dágua, dágua d água, d’água hidroabsorventes contexto sabiá Grande Patos Polietileno Tereftalato meio bovino 21. 21 1. 1 2:1 casualizado 0 0, (0 1g g substrato irrigação diária. diária . diária) 75 (7 dias folhas colo planta aérea TRA, TRA , (TRA) gasosas IQD. IQD (IQD) estatisticamente concluise conclui 2: ( 7 (TRA (IQD

ABSTRACT Mimosa caesalpiniifolia Benth is an arboreous species native to the Caatinga commonly utilized for restoration of degraded areas. One factor that can affect its development is water shortage. This denotes the importance of searching for alternatives for improving these plant's tolerance to water shortage, such as the use of water-absorbing polymers known as hydrogels. In this context, the objective of this study was to evaluate the production of M. caesalpiniifolia seedlings under different hydrogel rates and water regimes. The experiment was conducted at the Forest Nursery of the Federal University of Campina Grande, Patos, PB, Brazil. Seeds were sown in 2-liter pots made from halved polyethylene terephthalate bottles, containing a substrate consisted of soil and cattle manure (2:1 v v-1). A completely randomized design with four replications was used, in a 4×2 factorial arrangement consisted of four hydrogel rates in the substrate (0, 1, 2, and 3 g L-1) and two water regimes (daily irrigation and irrigation every 2 days). The following parameters were evaluated at the end of the experiment (75 days after sowing): number of leaves per plant, stem base diameter, plant height, root length, shoot and root dry weights, water relative content, chlorophyll content, gas exchanges, and Dickson quality index. Most of parameters presented no statistically significant difference; however, the hydrogel rate of 2 g L-1 resulted in increased production of M. caesalpiniifolia seedlings, whereas the absence of hydrogel resulted in longer roots, regardless of the water regime. areas shortage plants s waterabsorbing absorbing hydrogels context M Grande Patos PB Brazil 2liter liter bottles 21 1 (2: v1. v1 . v-1) used 42 4 4× 0, 0 (0 L1 L daily days. days) 75 (7 sowing sowing) diameter height length weights content exchanges index difference however L- roots regime (2 v-1 ( 7 v-

https://doi.org/10.1590/1983-21252024v3712314rc

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