Seed priming with hormones does not alleviate induced oxidative stress in maize seedlings subjected to salt stress

Detalhes bibliográficos
Autor(a) principal: Carvalho,Rogério Falleiros
Data de Publicação: 2011
Outros Autores: Piotto,Fernando Angelo, Schmidt,Daiana, Peters,Leila Priscila, Monteiro,Carolina Cristina, Azevedo,Ricardo Antunes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000500014
Resumo: Seed priming with hormones has been an efficient method for increasing seed vigor as well as seedling growth under stressful conditions. These responses have in the past been attributed to the activation of antioxidant systems in a range of crops. The results described in this work show that hormonal priming with methyl jasmonate, salicylic acid or CEPA (chloroethylphosphonic acid), an ethylene (ET) releaser, does not induce the antioxidant activity of superoxide dismutase, catalase, ascorbate peroxidase or glutathione reductase in maize seedlings subjected to salt stress. The enhanced biomass of maize seedlings under salt stress that was observed only from ET priming indicates that the stress tolerance in maize from ethylene priming is a fundamental process for stress tolerance acquisition, which is explained, however, by other biochemical mechanisms but not by changes in the antioxidant system.
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spelling Seed priming with hormones does not alleviate induced oxidative stress in maize seedlings subjected to salt stressZea maysantioxidant systemshormonal pretreatmentsalinityseedling growthSeed priming with hormones has been an efficient method for increasing seed vigor as well as seedling growth under stressful conditions. These responses have in the past been attributed to the activation of antioxidant systems in a range of crops. The results described in this work show that hormonal priming with methyl jasmonate, salicylic acid or CEPA (chloroethylphosphonic acid), an ethylene (ET) releaser, does not induce the antioxidant activity of superoxide dismutase, catalase, ascorbate peroxidase or glutathione reductase in maize seedlings subjected to salt stress. The enhanced biomass of maize seedlings under salt stress that was observed only from ET priming indicates that the stress tolerance in maize from ethylene priming is a fundamental process for stress tolerance acquisition, which is explained, however, by other biochemical mechanisms but not by changes in the antioxidant system.Escola Superior de Agricultura "Luiz de Queiroz"2011-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000500014Scientia Agricola v.68 n.5 2011reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162011000500014info:eu-repo/semantics/openAccessCarvalho,Rogério FalleirosPiotto,Fernando AngeloSchmidt,DaianaPeters,Leila PriscilaMonteiro,Carolina CristinaAzevedo,Ricardo Antuneseng2011-10-03T00:00:00Zoai:scielo:S0103-90162011000500014Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2011-10-03T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Seed priming with hormones does not alleviate induced oxidative stress in maize seedlings subjected to salt stress
title Seed priming with hormones does not alleviate induced oxidative stress in maize seedlings subjected to salt stress
spellingShingle Seed priming with hormones does not alleviate induced oxidative stress in maize seedlings subjected to salt stress
Carvalho,Rogério Falleiros
Zea mays
antioxidant systems
hormonal pretreatment
salinity
seedling growth
title_short Seed priming with hormones does not alleviate induced oxidative stress in maize seedlings subjected to salt stress
title_full Seed priming with hormones does not alleviate induced oxidative stress in maize seedlings subjected to salt stress
title_fullStr Seed priming with hormones does not alleviate induced oxidative stress in maize seedlings subjected to salt stress
title_full_unstemmed Seed priming with hormones does not alleviate induced oxidative stress in maize seedlings subjected to salt stress
title_sort Seed priming with hormones does not alleviate induced oxidative stress in maize seedlings subjected to salt stress
author Carvalho,Rogério Falleiros
author_facet Carvalho,Rogério Falleiros
Piotto,Fernando Angelo
Schmidt,Daiana
Peters,Leila Priscila
Monteiro,Carolina Cristina
Azevedo,Ricardo Antunes
author_role author
author2 Piotto,Fernando Angelo
Schmidt,Daiana
Peters,Leila Priscila
Monteiro,Carolina Cristina
Azevedo,Ricardo Antunes
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Carvalho,Rogério Falleiros
Piotto,Fernando Angelo
Schmidt,Daiana
Peters,Leila Priscila
Monteiro,Carolina Cristina
Azevedo,Ricardo Antunes
dc.subject.por.fl_str_mv Zea mays
antioxidant systems
hormonal pretreatment
salinity
seedling growth
topic Zea mays
antioxidant systems
hormonal pretreatment
salinity
seedling growth
description Seed priming with hormones has been an efficient method for increasing seed vigor as well as seedling growth under stressful conditions. These responses have in the past been attributed to the activation of antioxidant systems in a range of crops. The results described in this work show that hormonal priming with methyl jasmonate, salicylic acid or CEPA (chloroethylphosphonic acid), an ethylene (ET) releaser, does not induce the antioxidant activity of superoxide dismutase, catalase, ascorbate peroxidase or glutathione reductase in maize seedlings subjected to salt stress. The enhanced biomass of maize seedlings under salt stress that was observed only from ET priming indicates that the stress tolerance in maize from ethylene priming is a fundamental process for stress tolerance acquisition, which is explained, however, by other biochemical mechanisms but not by changes in the antioxidant system.
publishDate 2011
dc.date.none.fl_str_mv 2011-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000500014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000500014
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90162011000500014
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.68 n.5 2011
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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