The role of the seed coat in the light sensivity in Raphanus sativus L. cv. redondo gigante seeds

Detalhes bibliográficos
Autor(a) principal: Gonçalves,Maura Lúcia Costa
Data de Publicação: 1997
Outros Autores: Takaki,Massanori
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Acta Botanica Brasilica
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061997000100006
Resumo: The role of the seed coat in the light sensitivity of seeds of Raphanus sativus L. cv. redondo gigante was analysed by germination tests of intact and naked seeds. Far-red light caused high inhibition of seed germination, while under white and red lights low inhibition was found. Naked seeds presented no light sensitivity with high percentage germination under light and darkness. However, incubation of naked seeds in -0.6MPa polyethylene glycol solution resulted in light inhibition as observed in intact seeds. The analysis of the seed coat transmitted light indicated that the filtered light presented the same photoequilibrium of phytochrome when compared to the white light, with a decrease of only 33% in the light irradiance which reaches the embryo.
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spelling The role of the seed coat in the light sensivity in Raphanus sativus L. cv. redondo gigante seedsseed germinationRaphanus sativusseed coatphytochromeThe role of the seed coat in the light sensitivity of seeds of Raphanus sativus L. cv. redondo gigante was analysed by germination tests of intact and naked seeds. Far-red light caused high inhibition of seed germination, while under white and red lights low inhibition was found. Naked seeds presented no light sensitivity with high percentage germination under light and darkness. However, incubation of naked seeds in -0.6MPa polyethylene glycol solution resulted in light inhibition as observed in intact seeds. The analysis of the seed coat transmitted light indicated that the filtered light presented the same photoequilibrium of phytochrome when compared to the white light, with a decrease of only 33% in the light irradiance which reaches the embryo.Sociedade Botânica do Brasil1997-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061997000100006Acta Botanica Brasilica v.11 n.1 1997reponame:Acta Botanica Brasilicainstname:Sociedade Botânica do Brasil (SBB)instacron:SBB10.1590/S0102-33061997000100006info:eu-repo/semantics/openAccessGonçalves,Maura Lúcia CostaTakaki,Massanorieng2011-06-03T00:00:00Zoai:scielo:S0102-33061997000100006Revistahttps://www.scielo.br/j/abb/ONGhttps://old.scielo.br/oai/scielo-oai.phpacta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com1677-941X0102-3306opendoar:2011-06-03T00:00Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)false
dc.title.none.fl_str_mv The role of the seed coat in the light sensivity in Raphanus sativus L. cv. redondo gigante seeds
title The role of the seed coat in the light sensivity in Raphanus sativus L. cv. redondo gigante seeds
spellingShingle The role of the seed coat in the light sensivity in Raphanus sativus L. cv. redondo gigante seeds
Gonçalves,Maura Lúcia Costa
seed germination
Raphanus sativus
seed coat
phytochrome
title_short The role of the seed coat in the light sensivity in Raphanus sativus L. cv. redondo gigante seeds
title_full The role of the seed coat in the light sensivity in Raphanus sativus L. cv. redondo gigante seeds
title_fullStr The role of the seed coat in the light sensivity in Raphanus sativus L. cv. redondo gigante seeds
title_full_unstemmed The role of the seed coat in the light sensivity in Raphanus sativus L. cv. redondo gigante seeds
title_sort The role of the seed coat in the light sensivity in Raphanus sativus L. cv. redondo gigante seeds
author Gonçalves,Maura Lúcia Costa
author_facet Gonçalves,Maura Lúcia Costa
Takaki,Massanori
author_role author
author2 Takaki,Massanori
author2_role author
dc.contributor.author.fl_str_mv Gonçalves,Maura Lúcia Costa
Takaki,Massanori
dc.subject.por.fl_str_mv seed germination
Raphanus sativus
seed coat
phytochrome
topic seed germination
Raphanus sativus
seed coat
phytochrome
description The role of the seed coat in the light sensitivity of seeds of Raphanus sativus L. cv. redondo gigante was analysed by germination tests of intact and naked seeds. Far-red light caused high inhibition of seed germination, while under white and red lights low inhibition was found. Naked seeds presented no light sensitivity with high percentage germination under light and darkness. However, incubation of naked seeds in -0.6MPa polyethylene glycol solution resulted in light inhibition as observed in intact seeds. The analysis of the seed coat transmitted light indicated that the filtered light presented the same photoequilibrium of phytochrome when compared to the white light, with a decrease of only 33% in the light irradiance which reaches the embryo.
publishDate 1997
dc.date.none.fl_str_mv 1997-07-01
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=S0102-33061997000100006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061997000100006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0102-33061997000100006
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 Sociedade Botânica do Brasil
publisher.none.fl_str_mv Sociedade Botânica do Brasil
dc.source.none.fl_str_mv Acta Botanica Brasilica v.11 n.1 1997
reponame:Acta Botanica Brasilica
instname:Sociedade Botânica do Brasil (SBB)
instacron:SBB
instname_str Sociedade Botânica do Brasil (SBB)
instacron_str SBB
institution SBB
reponame_str Acta Botanica Brasilica
collection Acta Botanica Brasilica
repository.name.fl_str_mv Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)
repository.mail.fl_str_mv acta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com
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