Physiological performance of rice seeds treated with thiamethoxam or rhizobacteria under different temperatures

Detalhes bibliográficos
Autor(a) principal: Soares,Vanessa Nogueira
Data de Publicação: 2014
Outros Autores: Radke,Aline Klug, Tillmann,Maria Ângela André, Moura,Andréa Bittencourt, Schuch,Luis Osmar Braga
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of Seed Science
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372014000200007
Resumo: This study aimed to evaluate, at 15, 20 and 25 ºC, the physiological potential and enzyme activity of seedlings from six samples of rice seeds stored for one year and treated with growth-promoting rhizobacteria (Pseudomonas synxantha) and the bioactivator thiametoxam. The following were evaluated: seed germination, first germination count, root protrusion speed index, emergence percentage and emergence speed index, shoot and root length and enzyme activity (esterases, α-amylase and peroxidases) at 15, 20 and 25 ºC. In these conditions, thiametoxam and the rhizobacteria P. synxantha (DFs 185) improved the physiological performance of rice seeds with physiological qualities at low temperatures (20 and 15 ºC) and did not change the expression of the esterase and peroxidase isoenzymes. The rhizobacteria P. synxantha (DFs 185) increased the expression of the enzyme α-amylase at low temperatures.
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spelling Physiological performance of rice seeds treated with thiamethoxam or rhizobacteria under different temperaturesOryza sativa L.bioactivatorPseudomonas synxanthacold temperaturesThis study aimed to evaluate, at 15, 20 and 25 ºC, the physiological potential and enzyme activity of seedlings from six samples of rice seeds stored for one year and treated with growth-promoting rhizobacteria (Pseudomonas synxantha) and the bioactivator thiametoxam. The following were evaluated: seed germination, first germination count, root protrusion speed index, emergence percentage and emergence speed index, shoot and root length and enzyme activity (esterases, α-amylase and peroxidases) at 15, 20 and 25 ºC. In these conditions, thiametoxam and the rhizobacteria P. synxantha (DFs 185) improved the physiological performance of rice seeds with physiological qualities at low temperatures (20 and 15 ºC) and did not change the expression of the esterase and peroxidase isoenzymes. The rhizobacteria P. synxantha (DFs 185) increased the expression of the enzyme α-amylase at low temperatures.ABRATES - Associação Brasileira de Tecnologia de Sementes2014-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372014000200007Journal of Seed Science v.36 n.2 2014reponame:Journal of Seed Scienceinstname:Associação Brasileira de Tecnologia de Sementes (ABRATES)instacron:ABRATES10.1590/2317-1545v32n2925info:eu-repo/semantics/openAccessSoares,Vanessa NogueiraRadke,Aline KlugTillmann,Maria Ângela AndréMoura,Andréa BittencourtSchuch,Luis Osmar Bragaeng2014-06-24T00:00:00Zoai:scielo:S2317-15372014000200007Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=2317-1537&lng=en&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||abrates@abrates.org.br2317-15452317-1537opendoar:2014-06-24T00:00Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES)false
dc.title.none.fl_str_mv Physiological performance of rice seeds treated with thiamethoxam or rhizobacteria under different temperatures
title Physiological performance of rice seeds treated with thiamethoxam or rhizobacteria under different temperatures
spellingShingle Physiological performance of rice seeds treated with thiamethoxam or rhizobacteria under different temperatures
Soares,Vanessa Nogueira
Oryza sativa L.
bioactivator
Pseudomonas synxantha
cold temperatures
title_short Physiological performance of rice seeds treated with thiamethoxam or rhizobacteria under different temperatures
title_full Physiological performance of rice seeds treated with thiamethoxam or rhizobacteria under different temperatures
title_fullStr Physiological performance of rice seeds treated with thiamethoxam or rhizobacteria under different temperatures
title_full_unstemmed Physiological performance of rice seeds treated with thiamethoxam or rhizobacteria under different temperatures
title_sort Physiological performance of rice seeds treated with thiamethoxam or rhizobacteria under different temperatures
author Soares,Vanessa Nogueira
author_facet Soares,Vanessa Nogueira
Radke,Aline Klug
Tillmann,Maria Ângela André
Moura,Andréa Bittencourt
Schuch,Luis Osmar Braga
author_role author
author2 Radke,Aline Klug
Tillmann,Maria Ângela André
Moura,Andréa Bittencourt
Schuch,Luis Osmar Braga
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Soares,Vanessa Nogueira
Radke,Aline Klug
Tillmann,Maria Ângela André
Moura,Andréa Bittencourt
Schuch,Luis Osmar Braga
dc.subject.por.fl_str_mv Oryza sativa L.
bioactivator
Pseudomonas synxantha
cold temperatures
topic Oryza sativa L.
bioactivator
Pseudomonas synxantha
cold temperatures
description This study aimed to evaluate, at 15, 20 and 25 ºC, the physiological potential and enzyme activity of seedlings from six samples of rice seeds stored for one year and treated with growth-promoting rhizobacteria (Pseudomonas synxantha) and the bioactivator thiametoxam. The following were evaluated: seed germination, first germination count, root protrusion speed index, emergence percentage and emergence speed index, shoot and root length and enzyme activity (esterases, α-amylase and peroxidases) at 15, 20 and 25 ºC. In these conditions, thiametoxam and the rhizobacteria P. synxantha (DFs 185) improved the physiological performance of rice seeds with physiological qualities at low temperatures (20 and 15 ºC) and did not change the expression of the esterase and peroxidase isoenzymes. The rhizobacteria P. synxantha (DFs 185) increased the expression of the enzyme α-amylase at low temperatures.
publishDate 2014
dc.date.none.fl_str_mv 2014-06-01
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=S2317-15372014000200007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372014000200007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2317-1545v32n2925
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 ABRATES - Associação Brasileira de Tecnologia de Sementes
publisher.none.fl_str_mv ABRATES - Associação Brasileira de Tecnologia de Sementes
dc.source.none.fl_str_mv Journal of Seed Science v.36 n.2 2014
reponame:Journal of Seed Science
instname:Associação Brasileira de Tecnologia de Sementes (ABRATES)
instacron:ABRATES
instname_str Associação Brasileira de Tecnologia de Sementes (ABRATES)
instacron_str ABRATES
institution ABRATES
reponame_str Journal of Seed Science
collection Journal of Seed Science
repository.name.fl_str_mv Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES)
repository.mail.fl_str_mv ||abrates@abrates.org.br
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