|
|
Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
26/01/2023 |
Data da última atualização: |
20/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ÁVILA, R. G.; MAGALHAES, P. C.; VITORINO, L. C.; BESSA, L. A.; SOUZA, K. R. D. de; QUEIROZ, R. B.; JAKELAITIS, A.; TEIXEIRA, M. B. |
Afiliação: |
RONIEL GERALDO ÁVILA, Corporação Agro Simples; PAULO CESAR MAGALHAES, CNPMS; LUCIANA CRISTINA VITORINO, Instituto Federal Goiano; LAYARA ALEXANDRE BESSA, Instituto Federal Goiano; KAMILA REZENDE DÁZIO DE SOUZA, Universidade Federal de Alfenas; RAPHAEL BARROS QUEIROZ, Instituto Federal Goiano; ADRIANO JAKELAITIS, Instituto Federal Goiano; MARCONI BATISTA TEIXEIRA, Instituto Federal Goiano. |
Título: |
Chitosan induces sorghum tolerance to water deficits by positively regulating photosynthesis and the production of primary metabolites, osmoregulators, and antioxidants. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Journal of Soil Science and Plant Nutrition, v. 23, p. 1156–1172, 2023. |
DOI: |
https://doi.org/10.1007/s42729-022-01111-4 |
Idioma: |
Inglês |
Conteúdo: |
Current climate change scenarios require strategies that mitigate the efects of water defcits. Given that chitosan stimulates induced resistance responses, we tested the hypothesis that foliar application of this polysaccharide can have positive efects on the primary metabolite, antioxidant, and osmoregulatory metabolisms of sorghum, mitigating the efects of water defcit on grain yield. Sorghum plants were cultivated under either irrigated or water-defcit conditions and were either treated or untreated with chitosan, and we assessed the following responses: water potential, gas exchange, nutritional status, biosynthesis of primary and osmoregulatory metabolites, the activity of the antioxidant system constituents, and hydrogen peroxide and malondialdehyde contents. An active methodology was used to impose water stress on plants grown in pots with 20 kg of soil, 06 replications per treatment. Sorghum plants subjected to water defcit that were treated with chitosan exhibited higher stomatal conductance and transpiration than the untreated plants. Water restriction reduced the nutrient contents of leaves, but in the irrigated plants, chitosan treatment increased the tissue contents of certain nutrients and leaf concentrations of total proteins and total amino acids. In the plants under water-defcit conditions that were treated with chitosan, an elevated photosynthetic rate contributed to an increase in carbohydrate accumulation and a higher production of panicle and grain dry biomass compared with the untreated plants. The activity of catalase and ascorbate peroxidase also increased in response to chitosan. Overall, chitosan was efective in enhancing the water defcit tolerance of sorghum plants cultivated under water-defcit conditions by 57%. With this work, we generate perspectives for studies focusing on the development of water-defcit-resistant sorghum lineages, by means of chitosan elicitation. MenosCurrent climate change scenarios require strategies that mitigate the efects of water defcits. Given that chitosan stimulates induced resistance responses, we tested the hypothesis that foliar application of this polysaccharide can have positive efects on the primary metabolite, antioxidant, and osmoregulatory metabolisms of sorghum, mitigating the efects of water defcit on grain yield. Sorghum plants were cultivated under either irrigated or water-defcit conditions and were either treated or untreated with chitosan, and we assessed the following responses: water potential, gas exchange, nutritional status, biosynthesis of primary and osmoregulatory metabolites, the activity of the antioxidant system constituents, and hydrogen peroxide and malondialdehyde contents. An active methodology was used to impose water stress on plants grown in pots with 20 kg of soil, 06 replications per treatment. Sorghum plants subjected to water defcit that were treated with chitosan exhibited higher stomatal conductance and transpiration than the untreated plants. Water restriction reduced the nutrient contents of leaves, but in the irrigated plants, chitosan treatment increased the tissue contents of certain nutrients and leaf concentrations of total proteins and total amino acids. In the plants under water-defcit conditions that were treated with chitosan, an elevated photosynthetic rate contributed to an increase in carbohydrate accumulation and a higher production of panicle and grain dry b... Mostrar Tudo |
Palavras-Chave: |
Desempenho fotossintético; Estresse hídrico; Osmorregulação; Quitosana. |
Thesagro: |
Antioxidante; Enzima; Fotossíntese; Sorgo Granífero. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1151232/1/Chitosan-induces-sorghum-tolerance.pdf
|
Marc: |
LEADER 02955naa a2200313 a 4500 001 2151232 005 2024-02-20 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1007/s42729-022-01111-4$2DOI 100 1 $aÁVILA, R. G. 245 $aChitosan induces sorghum tolerance to water deficits by positively regulating photosynthesis and the production of primary metabolites, osmoregulators, and antioxidants.$h[electronic resource] 260 $c2023 520 $aCurrent climate change scenarios require strategies that mitigate the efects of water defcits. Given that chitosan stimulates induced resistance responses, we tested the hypothesis that foliar application of this polysaccharide can have positive efects on the primary metabolite, antioxidant, and osmoregulatory metabolisms of sorghum, mitigating the efects of water defcit on grain yield. Sorghum plants were cultivated under either irrigated or water-defcit conditions and were either treated or untreated with chitosan, and we assessed the following responses: water potential, gas exchange, nutritional status, biosynthesis of primary and osmoregulatory metabolites, the activity of the antioxidant system constituents, and hydrogen peroxide and malondialdehyde contents. An active methodology was used to impose water stress on plants grown in pots with 20 kg of soil, 06 replications per treatment. Sorghum plants subjected to water defcit that were treated with chitosan exhibited higher stomatal conductance and transpiration than the untreated plants. Water restriction reduced the nutrient contents of leaves, but in the irrigated plants, chitosan treatment increased the tissue contents of certain nutrients and leaf concentrations of total proteins and total amino acids. In the plants under water-defcit conditions that were treated with chitosan, an elevated photosynthetic rate contributed to an increase in carbohydrate accumulation and a higher production of panicle and grain dry biomass compared with the untreated plants. The activity of catalase and ascorbate peroxidase also increased in response to chitosan. Overall, chitosan was efective in enhancing the water defcit tolerance of sorghum plants cultivated under water-defcit conditions by 57%. With this work, we generate perspectives for studies focusing on the development of water-defcit-resistant sorghum lineages, by means of chitosan elicitation. 650 $aAntioxidante 650 $aEnzima 650 $aFotossíntese 650 $aSorgo Granífero 653 $aDesempenho fotossintético 653 $aEstresse hídrico 653 $aOsmorregulação 653 $aQuitosana 700 1 $aMAGALHAES, P. C. 700 1 $aVITORINO, L. C. 700 1 $aBESSA, L. A. 700 1 $aSOUZA, K. R. D. de 700 1 $aQUEIROZ, R. B. 700 1 $aJAKELAITIS, A. 700 1 $aTEIXEIRA, M. B. 773 $tJournal of Soil Science and Plant Nutrition$gv. 23, p. 1156–1172, 2023.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
22/04/2020 |
Data da última atualização: |
22/04/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
PEREIRA, L. A.; RAMALHO, M. A. P.; ABREU, A. de F. B.; GUILHERME, S. R. |
Afiliação: |
LAIS ANDRADE PEREIRA, UFLA; MAGNO ANTONIO PATTO RAMALHO, UFLA; ANGELA DE FATIMA BARBOSA ABREU, CNPAF; SCHEILA ROBERTA GUILHERME, UFLA. |
Título: |
Genetic control of viviparity in common bean. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Scientia Agricola, v. 74, n. 3, p. 208-214, May/June, 2017. |
ISSN: |
1678-992X |
DOI: |
10.1590/1678-992X-2015-0068 |
Idioma: |
Inglês |
Conteúdo: |
In common bean (Phaseolus vulgaris) harvesting is carried out in the field. It is therefore necessary that cultivars be tolerant to viviparity, i.e., germination of grains still in the pods. Study of the percentage of germination of beans in the pods under laboratory conditions, where humidity content is high, has been proposed. Furthermore, under question is whether the thickness of the pod wall affects water uptake by the pods and, consequently, viviparity. Thus, the aim of the present study was to verify if there is variance among progenies for viviparity and if it is influenced by pod thickness. We assessed the parents, Pérola and ESAL 686, the F1, and a number of segregating generations in two crop seasons, in relation to the percentage of germination of seeds in the pods (PGSP) and pod wall thickness (PWT), and data on individual plants were obtained. The same traits were also assessed using the F2:3, F3:4 and F4:5 progenies. Taking into account the genetic and phenotypic parameters estimates, especially the level of high heritability, selection to less viviparity in common bean has to be carried out to evaluate PGSP in progenies. |
Thesagro: |
Controle Genético; Feijão; Hereditariedade; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Pré-Colheita. |
Thesaurus NAL: |
Beans; Genetic complementation; Heritability; Plant breeding; Preharvest treatment; Yield components. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/212433/1/CNPAF-2017-sa.pdf
|
Marc: |
LEADER 02079naa a2200325 a 4500 001 2121769 005 2020-04-22 008 2017 bl uuuu u00u1 u #d 022 $a1678-992X 024 7 $a10.1590/1678-992X-2015-0068$2DOI 100 1 $aPEREIRA, L. A. 245 $aGenetic control of viviparity in common bean.$h[electronic resource] 260 $c2017 520 $aIn common bean (Phaseolus vulgaris) harvesting is carried out in the field. It is therefore necessary that cultivars be tolerant to viviparity, i.e., germination of grains still in the pods. Study of the percentage of germination of beans in the pods under laboratory conditions, where humidity content is high, has been proposed. Furthermore, under question is whether the thickness of the pod wall affects water uptake by the pods and, consequently, viviparity. Thus, the aim of the present study was to verify if there is variance among progenies for viviparity and if it is influenced by pod thickness. We assessed the parents, Pérola and ESAL 686, the F1, and a number of segregating generations in two crop seasons, in relation to the percentage of germination of seeds in the pods (PGSP) and pod wall thickness (PWT), and data on individual plants were obtained. The same traits were also assessed using the F2:3, F3:4 and F4:5 progenies. Taking into account the genetic and phenotypic parameters estimates, especially the level of high heritability, selection to less viviparity in common bean has to be carried out to evaluate PGSP in progenies. 650 $aBeans 650 $aGenetic complementation 650 $aHeritability 650 $aPlant breeding 650 $aPreharvest treatment 650 $aYield components 650 $aControle Genético 650 $aFeijão 650 $aHereditariedade 650 $aMelhoramento Genético Vegetal 650 $aPhaseolus Vulgaris 650 $aPré-Colheita 700 1 $aRAMALHO, M. A. P. 700 1 $aABREU, A. de F. B. 700 1 $aGUILHERME, S. R. 773 $tScientia Agricola$gv. 74, n. 3, p. 208-214, May/June, 2017.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|