Cyanogenic polimorphysm in brackens, Pteridium arachnoideum and P. caudatum, from the northern Andes

Detalhes bibliográficos
Autor(a) principal: Oliveros-Bastidas,Alberto de J.
Data de Publicação: 2010
Outros Autores: Alonso-Amelot,Miguel E.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000700018
Resumo: Cyanogenesis in Pteridium caudatum and P. arachnoideum has been examined. Samples of the Andes of South America furnished from 0 to 4.63 mg of prunasin g-1 of frond dry weight (dw) in P. caudatum and from 0 to 103 mg of g-1 dw in P. arachnoideum. In both fern species the continuous distribution of prunasin suggested cyanogenic polymorphism. The frequency of cyanogenic morphs was 84.7% for P. caudatum and 98.6% for P. arachnoideum. Cyanogenic activity was highest in the young crozier and waned rapidly with frond growth. The crozier head was found to yield HCN much more than the stipe.
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spelling Cyanogenic polimorphysm in brackens, Pteridium arachnoideum and P. caudatum, from the northern AndescyanogenesisPteridiumprunasinCyanogenesis in Pteridium caudatum and P. arachnoideum has been examined. Samples of the Andes of South America furnished from 0 to 4.63 mg of prunasin g-1 of frond dry weight (dw) in P. caudatum and from 0 to 103 mg of g-1 dw in P. arachnoideum. In both fern species the continuous distribution of prunasin suggested cyanogenic polymorphism. The frequency of cyanogenic morphs was 84.7% for P. caudatum and 98.6% for P. arachnoideum. Cyanogenic activity was highest in the young crozier and waned rapidly with frond growth. The crozier head was found to yield HCN much more than the stipe.Sociedade Brasileira de Química2010-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000700018Química Nova v.33 n.7 2010reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422010000700018info:eu-repo/semantics/openAccessOliveros-Bastidas,Alberto de J.Alonso-Amelot,Miguel E.eng2010-09-27T00:00:00Zoai:scielo:S0100-40422010000700018Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2010-09-27T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Cyanogenic polimorphysm in brackens, Pteridium arachnoideum and P. caudatum, from the northern Andes
title Cyanogenic polimorphysm in brackens, Pteridium arachnoideum and P. caudatum, from the northern Andes
spellingShingle Cyanogenic polimorphysm in brackens, Pteridium arachnoideum and P. caudatum, from the northern Andes
Oliveros-Bastidas,Alberto de J.
cyanogenesis
Pteridium
prunasin
title_short Cyanogenic polimorphysm in brackens, Pteridium arachnoideum and P. caudatum, from the northern Andes
title_full Cyanogenic polimorphysm in brackens, Pteridium arachnoideum and P. caudatum, from the northern Andes
title_fullStr Cyanogenic polimorphysm in brackens, Pteridium arachnoideum and P. caudatum, from the northern Andes
title_full_unstemmed Cyanogenic polimorphysm in brackens, Pteridium arachnoideum and P. caudatum, from the northern Andes
title_sort Cyanogenic polimorphysm in brackens, Pteridium arachnoideum and P. caudatum, from the northern Andes
author Oliveros-Bastidas,Alberto de J.
author_facet Oliveros-Bastidas,Alberto de J.
Alonso-Amelot,Miguel E.
author_role author
author2 Alonso-Amelot,Miguel E.
author2_role author
dc.contributor.author.fl_str_mv Oliveros-Bastidas,Alberto de J.
Alonso-Amelot,Miguel E.
dc.subject.por.fl_str_mv cyanogenesis
Pteridium
prunasin
topic cyanogenesis
Pteridium
prunasin
description Cyanogenesis in Pteridium caudatum and P. arachnoideum has been examined. Samples of the Andes of South America furnished from 0 to 4.63 mg of prunasin g-1 of frond dry weight (dw) in P. caudatum and from 0 to 103 mg of g-1 dw in P. arachnoideum. In both fern species the continuous distribution of prunasin suggested cyanogenic polymorphism. The frequency of cyanogenic morphs was 84.7% for P. caudatum and 98.6% for P. arachnoideum. Cyanogenic activity was highest in the young crozier and waned rapidly with frond growth. The crozier head was found to yield HCN much more than the stipe.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000700018
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000700018
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422010000700018
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 Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.33 n.7 2010
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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