Ecophysiological and biochemical responses of saltbush subjected to salinity

Detalhes bibliográficos
Autor(a) principal: de Oliveira Junior, Luiz Fernando Ganassali
Data de Publicação: 2016
Outros Autores: Reis, Fabricio de Oliveira, Fagundes, Jailson Lara, Gagliardi, Paulo Roberto, Oliveira, Lucas Fonseca Menezes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/38719
Resumo: Saltbush, a halophyte species tolerant to salt stress, is an excellent material for the identification of physiological and biochemical mechanisms involved in the resistance to salinity. This study aimed at evaluating the ecophysiological and biochemical responses of saltbush plants at the concentrations of 0 mM, 150 mM, 300 mM, 450 mM and 600 mM of NaCl. Biometry, gas exchange and relative content of chlorophyll and proline in the leaves were measured. Plants presented growth stimulation mainly at the levels of 0 mM, 150 mM and 300 mM of NaCl. Regarding gas exchange, plants showed variation in the photosynthetic rate and stomatal regulation, with a small increase in leaf transpiration. Salinity did not significantly alter the chlorophyll contents, but induced an increase in proline contents in all NaCl levels, demonstrating a growth maintenance capacity and indicating the occurrence of osmotic adjustment.
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spelling Ecophysiological and biochemical responses of saltbush subjected to salinityRespostas ecofisiológicas e bioquímicas de erva-sal submetida a salinidadeAtriplex numuláriagas exchangeproline.Atriplex numuláriatrocas gasosasprolina.Saltbush, a halophyte species tolerant to salt stress, is an excellent material for the identification of physiological and biochemical mechanisms involved in the resistance to salinity. This study aimed at evaluating the ecophysiological and biochemical responses of saltbush plants at the concentrations of 0 mM, 150 mM, 300 mM, 450 mM and 600 mM of NaCl. Biometry, gas exchange and relative content of chlorophyll and proline in the leaves were measured. Plants presented growth stimulation mainly at the levels of 0 mM, 150 mM and 300 mM of NaCl. Regarding gas exchange, plants showed variation in the photosynthetic rate and stomatal regulation, with a small increase in leaf transpiration. Salinity did not significantly alter the chlorophyll contents, but induced an increase in proline contents in all NaCl levels, demonstrating a growth maintenance capacity and indicating the occurrence of osmotic adjustment.A erva-sal, uma halófita tolerante ao estresse salino, constitui excelente material para a identificação de mecanismos fisiológicos e bioquímicos envolvidos na resistência a salinidade. Objetivou-se avaliar as respostas ecofisiológicas e bioquímicas de plantas de erva-sal, nas concentrações de 0 mM, 150 mM, 300 mM, 450 mM e 600 mM de NaCl. A biometria, trocas gasosas e teor relativo de clorofilas e de prolina nas folhas foram mensurados. As plantas apresentaram estímulo de crescimento principalmente nos níveis de 0 mM, 150 mM e 300 mM de NaCl. Quanto às trocas gasosas, houve variação na taxa fotossintética e regulação estomática, gerando um pequeno aumento na transpiração foliar. A salinidade não alterou significativamente os teores de clorofilas, mas induziu incremento nos teores de prolina em todos os níveis de NaCl, demonstrando capacidade de manutenção do crescimento e evidenciando ocorrência de ajustamento osmótico.Escola de Agronomia - Universidade Federal de Goiás2016-06-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/38719Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 46, n. 2, Apr./Jun. 2016; 116-122Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 46, n. 2, abr./jun. 2016; 116-122Pesquisa Agropecuária Tropical; v. 46, n. 2, abr./jun. 2016; 116-1221983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/38719/21129de Oliveira Junior, Luiz Fernando GanassaliReis, Fabricio de OliveiraFagundes, Jailson LaraGagliardi, Paulo RobertoOliveira, Lucas Fonseca Menezesinfo:eu-repo/semantics/openAccess2020-07-13T17:54:26Zoai:ojs.revistas.ufg.br:article/38719Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:11.263039Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Ecophysiological and biochemical responses of saltbush subjected to salinity
Respostas ecofisiológicas e bioquímicas de erva-sal submetida a salinidade
title Ecophysiological and biochemical responses of saltbush subjected to salinity
spellingShingle Ecophysiological and biochemical responses of saltbush subjected to salinity
de Oliveira Junior, Luiz Fernando Ganassali
Atriplex numulária
gas exchange
proline.
Atriplex numulária
trocas gasosas
prolina.
title_short Ecophysiological and biochemical responses of saltbush subjected to salinity
title_full Ecophysiological and biochemical responses of saltbush subjected to salinity
title_fullStr Ecophysiological and biochemical responses of saltbush subjected to salinity
title_full_unstemmed Ecophysiological and biochemical responses of saltbush subjected to salinity
title_sort Ecophysiological and biochemical responses of saltbush subjected to salinity
author de Oliveira Junior, Luiz Fernando Ganassali
author_facet de Oliveira Junior, Luiz Fernando Ganassali
Reis, Fabricio de Oliveira
Fagundes, Jailson Lara
Gagliardi, Paulo Roberto
Oliveira, Lucas Fonseca Menezes
author_role author
author2 Reis, Fabricio de Oliveira
Fagundes, Jailson Lara
Gagliardi, Paulo Roberto
Oliveira, Lucas Fonseca Menezes
author2_role author
author
author
author
dc.contributor.author.fl_str_mv de Oliveira Junior, Luiz Fernando Ganassali
Reis, Fabricio de Oliveira
Fagundes, Jailson Lara
Gagliardi, Paulo Roberto
Oliveira, Lucas Fonseca Menezes
dc.subject.por.fl_str_mv Atriplex numulária
gas exchange
proline.
Atriplex numulária
trocas gasosas
prolina.
topic Atriplex numulária
gas exchange
proline.
Atriplex numulária
trocas gasosas
prolina.
description Saltbush, a halophyte species tolerant to salt stress, is an excellent material for the identification of physiological and biochemical mechanisms involved in the resistance to salinity. This study aimed at evaluating the ecophysiological and biochemical responses of saltbush plants at the concentrations of 0 mM, 150 mM, 300 mM, 450 mM and 600 mM of NaCl. Biometry, gas exchange and relative content of chlorophyll and proline in the leaves were measured. Plants presented growth stimulation mainly at the levels of 0 mM, 150 mM and 300 mM of NaCl. Regarding gas exchange, plants showed variation in the photosynthetic rate and stomatal regulation, with a small increase in leaf transpiration. Salinity did not significantly alter the chlorophyll contents, but induced an increase in proline contents in all NaCl levels, demonstrating a growth maintenance capacity and indicating the occurrence of osmotic adjustment.
publishDate 2016
dc.date.none.fl_str_mv 2016-06-02
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/38719
url https://revistas.ufg.br/pat/article/view/38719
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/38719/21129
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 46, n. 2, Apr./Jun. 2016; 116-122
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 46, n. 2, abr./jun. 2016; 116-122
Pesquisa Agropecuária Tropical; v. 46, n. 2, abr./jun. 2016; 116-122
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
_version_ 1799874819312844800

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