Cyanogenic polimorphysm in brackens, Pteridium arachnoideum and P. caudatum, from the northern Andes
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | |
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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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 |
format |
article |
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 |
_version_ |
1750318111098142720 |