Antioxidant enzyme activity in germination of Dalbergia spruceana seeds under different temperatures

Detalhes bibliográficos
Autor(a) principal: Lima,Clenes Cunha
Data de Publicação: 2021
Outros Autores: Gurgel,Ely Simone Cajueiro, Borges,Eduardo Euclydes de Lima e
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=S2317-15372021000100104
Resumo: Abstract: Antioxidant enzyme activity can be used to measure heat stress and predict the tolerance of a species to heat stress. This study investigated the effects of temperature on germination and antioxidant enzyme activity in Dalbergia spruceana Benth. seeds. Seeds were incubated at constant temperatures of 20, 25, 30, 35, and 40 °C for ten days; and germination percentage, germination speed index, antioxidant enzyme activity, and electrical conductivity were evaluated. Temperature affected the seed germination process but not antioxidant enzyme activity. Germination percentage and germination speed index were higher at 25 and 35 °C and lower at 20 and 40 °C. Superoxide dismutase activity was not affected by temperature. Catalase and peroxidase activities were too low to be used as indicators of temperature stress. The pattern of increasing electrolyte leakage manifested a trend toward loss of cell membrane semipermeability at higher temperatures.
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spelling Antioxidant enzyme activity in germination of Dalbergia spruceana seeds under different temperaturesheat stresscell membranescell homeostasisjacarandá-do-ParáAbstract: Antioxidant enzyme activity can be used to measure heat stress and predict the tolerance of a species to heat stress. This study investigated the effects of temperature on germination and antioxidant enzyme activity in Dalbergia spruceana Benth. seeds. Seeds were incubated at constant temperatures of 20, 25, 30, 35, and 40 °C for ten days; and germination percentage, germination speed index, antioxidant enzyme activity, and electrical conductivity were evaluated. Temperature affected the seed germination process but not antioxidant enzyme activity. Germination percentage and germination speed index were higher at 25 and 35 °C and lower at 20 and 40 °C. Superoxide dismutase activity was not affected by temperature. Catalase and peroxidase activities were too low to be used as indicators of temperature stress. The pattern of increasing electrolyte leakage manifested a trend toward loss of cell membrane semipermeability at higher temperatures.ABRATES - Associação Brasileira de Tecnologia de Sementes2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372021000100104Journal of Seed Science v.43 2021reponame:Journal of Seed Scienceinstname:Associação Brasileira de Tecnologia de Sementes (ABRATES)instacron:ABRATES10.1590/2317-1545v43244385info:eu-repo/semantics/openAccessLima,Clenes CunhaGurgel,Ely Simone CajueiroBorges,Eduardo Euclydes de Lima eeng2021-03-11T00:00:00Zoai:scielo:S2317-15372021000100104Revistahttp://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:2021-03-11T00:00Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES)false
dc.title.none.fl_str_mv Antioxidant enzyme activity in germination of Dalbergia spruceana seeds under different temperatures
title Antioxidant enzyme activity in germination of Dalbergia spruceana seeds under different temperatures
spellingShingle Antioxidant enzyme activity in germination of Dalbergia spruceana seeds under different temperatures
Lima,Clenes Cunha
heat stress
cell membranes
cell homeostasis
jacarandá-do-Pará
title_short Antioxidant enzyme activity in germination of Dalbergia spruceana seeds under different temperatures
title_full Antioxidant enzyme activity in germination of Dalbergia spruceana seeds under different temperatures
title_fullStr Antioxidant enzyme activity in germination of Dalbergia spruceana seeds under different temperatures
title_full_unstemmed Antioxidant enzyme activity in germination of Dalbergia spruceana seeds under different temperatures
title_sort Antioxidant enzyme activity in germination of Dalbergia spruceana seeds under different temperatures
author Lima,Clenes Cunha
author_facet Lima,Clenes Cunha
Gurgel,Ely Simone Cajueiro
Borges,Eduardo Euclydes de Lima e
author_role author
author2 Gurgel,Ely Simone Cajueiro
Borges,Eduardo Euclydes de Lima e
author2_role author
author
dc.contributor.author.fl_str_mv Lima,Clenes Cunha
Gurgel,Ely Simone Cajueiro
Borges,Eduardo Euclydes de Lima e
dc.subject.por.fl_str_mv heat stress
cell membranes
cell homeostasis
jacarandá-do-Pará
topic heat stress
cell membranes
cell homeostasis
jacarandá-do-Pará
description Abstract: Antioxidant enzyme activity can be used to measure heat stress and predict the tolerance of a species to heat stress. This study investigated the effects of temperature on germination and antioxidant enzyme activity in Dalbergia spruceana Benth. seeds. Seeds were incubated at constant temperatures of 20, 25, 30, 35, and 40 °C for ten days; and germination percentage, germination speed index, antioxidant enzyme activity, and electrical conductivity were evaluated. Temperature affected the seed germination process but not antioxidant enzyme activity. Germination percentage and germination speed index were higher at 25 and 35 °C and lower at 20 and 40 °C. Superoxide dismutase activity was not affected by temperature. Catalase and peroxidase activities were too low to be used as indicators of temperature stress. The pattern of increasing electrolyte leakage manifested a trend toward loss of cell membrane semipermeability at higher temperatures.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
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=S2317-15372021000100104
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372021000100104
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2317-1545v43244385
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.43 2021
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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