Diterpenes from marine brown alga Dictyota guineensis (Dictyotaceae, Phaeophyceae)

Detalhes bibliográficos
Autor(a) principal: De-Paula,Joel Campos
Data de Publicação: 2012
Outros Autores: Cavalcanti,Diana Negrão, Yoneshigue-Valentin,Yocie, Teixeira,Valéria Laneuville
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Farmacognosia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-695X2012000400005
Resumo: The crude extract of the marine brown alga Dictyota guineensis was analyzed by high-resolution gas chromatography-mass spectrometry (HRGC-MS). Five diterpenes were identified: dictyol E (the most abundant diterpene), dictyotadiol, dictyoxide, isopachydictyol A and pachydictyol A, all diterpenes from the chemical group I, i.e., mainly prenylated derivatives of known sesquiterpene skeletons that result from a first cyclization of geranyl-geraniol between positions 1 and 10. These diterpenes are known for their activity against bacteria, fungi and other activities. The results characterize D. guineensis as a species that yields exclusively diterpenes from group I, with low oxidation and low structural complexity. On Brazilian coasts, only D. mertensii provides exclusively prenylated guaiane diterpenes. Although D. guineensis presents alternate branches and fixing by rhizoidal branches, it is easily distinguishable from D. mertensii by the much narrower stem, short stature and flabelliform habit of the former species. On the other hand, both species have been characterized as producers of diterpenes of group I, in particular, prenylated guaiane. However, D. guineensis has a majority dictyol E in the lipophilic extract, while D. mertensii produces more complex prenylated guaianes, like dictyol H.
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spelling Diterpenes from marine brown alga Dictyota guineensis (Dictyotaceae, Phaeophyceae)Dictyota guineensisDictyotaceaePhaeophyceaediterpenesThe crude extract of the marine brown alga Dictyota guineensis was analyzed by high-resolution gas chromatography-mass spectrometry (HRGC-MS). Five diterpenes were identified: dictyol E (the most abundant diterpene), dictyotadiol, dictyoxide, isopachydictyol A and pachydictyol A, all diterpenes from the chemical group I, i.e., mainly prenylated derivatives of known sesquiterpene skeletons that result from a first cyclization of geranyl-geraniol between positions 1 and 10. These diterpenes are known for their activity against bacteria, fungi and other activities. The results characterize D. guineensis as a species that yields exclusively diterpenes from group I, with low oxidation and low structural complexity. On Brazilian coasts, only D. mertensii provides exclusively prenylated guaiane diterpenes. Although D. guineensis presents alternate branches and fixing by rhizoidal branches, it is easily distinguishable from D. mertensii by the much narrower stem, short stature and flabelliform habit of the former species. On the other hand, both species have been characterized as producers of diterpenes of group I, in particular, prenylated guaiane. However, D. guineensis has a majority dictyol E in the lipophilic extract, while D. mertensii produces more complex prenylated guaianes, like dictyol H.Sociedade Brasileira de Farmacognosia2012-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-695X2012000400005Revista Brasileira de Farmacognosia v.22 n.4 2012reponame:Revista Brasileira de Farmacognosia (Online)instname:Sociedade Brasileira de Farmacognosia (SBFgnosia)instacron:SBFGNOSIA10.1590/S0102-695X2012005000071info:eu-repo/semantics/openAccessDe-Paula,Joel CamposCavalcanti,Diana NegrãoYoneshigue-Valentin,YocieTeixeira,Valéria Laneuvilleeng2012-06-27T00:00:00Zoai:scielo:S0102-695X2012000400005Revistahttp://www.sbfgnosia.org.br/revista/https://old.scielo.br/oai/scielo-oai.phprbgnosia@ltf.ufpb.br1981-528X0102-695Xopendoar:2012-06-27T00:00Revista Brasileira de Farmacognosia (Online) - Sociedade Brasileira de Farmacognosia (SBFgnosia)false
dc.title.none.fl_str_mv Diterpenes from marine brown alga Dictyota guineensis (Dictyotaceae, Phaeophyceae)
title Diterpenes from marine brown alga Dictyota guineensis (Dictyotaceae, Phaeophyceae)
spellingShingle Diterpenes from marine brown alga Dictyota guineensis (Dictyotaceae, Phaeophyceae)
De-Paula,Joel Campos
Dictyota guineensis
Dictyotaceae
Phaeophyceae
diterpenes
title_short Diterpenes from marine brown alga Dictyota guineensis (Dictyotaceae, Phaeophyceae)
title_full Diterpenes from marine brown alga Dictyota guineensis (Dictyotaceae, Phaeophyceae)
title_fullStr Diterpenes from marine brown alga Dictyota guineensis (Dictyotaceae, Phaeophyceae)
title_full_unstemmed Diterpenes from marine brown alga Dictyota guineensis (Dictyotaceae, Phaeophyceae)
title_sort Diterpenes from marine brown alga Dictyota guineensis (Dictyotaceae, Phaeophyceae)
author De-Paula,Joel Campos
author_facet De-Paula,Joel Campos
Cavalcanti,Diana Negrão
Yoneshigue-Valentin,Yocie
Teixeira,Valéria Laneuville
author_role author
author2 Cavalcanti,Diana Negrão
Yoneshigue-Valentin,Yocie
Teixeira,Valéria Laneuville
author2_role author
author
author
dc.contributor.author.fl_str_mv De-Paula,Joel Campos
Cavalcanti,Diana Negrão
Yoneshigue-Valentin,Yocie
Teixeira,Valéria Laneuville
dc.subject.por.fl_str_mv Dictyota guineensis
Dictyotaceae
Phaeophyceae
diterpenes
topic Dictyota guineensis
Dictyotaceae
Phaeophyceae
diterpenes
description The crude extract of the marine brown alga Dictyota guineensis was analyzed by high-resolution gas chromatography-mass spectrometry (HRGC-MS). Five diterpenes were identified: dictyol E (the most abundant diterpene), dictyotadiol, dictyoxide, isopachydictyol A and pachydictyol A, all diterpenes from the chemical group I, i.e., mainly prenylated derivatives of known sesquiterpene skeletons that result from a first cyclization of geranyl-geraniol between positions 1 and 10. These diterpenes are known for their activity against bacteria, fungi and other activities. The results characterize D. guineensis as a species that yields exclusively diterpenes from group I, with low oxidation and low structural complexity. On Brazilian coasts, only D. mertensii provides exclusively prenylated guaiane diterpenes. Although D. guineensis presents alternate branches and fixing by rhizoidal branches, it is easily distinguishable from D. mertensii by the much narrower stem, short stature and flabelliform habit of the former species. On the other hand, both species have been characterized as producers of diterpenes of group I, in particular, prenylated guaiane. However, D. guineensis has a majority dictyol E in the lipophilic extract, while D. mertensii produces more complex prenylated guaianes, like dictyol H.
publishDate 2012
dc.date.none.fl_str_mv 2012-08-01
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=S0102-695X2012000400005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-695X2012000400005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0102-695X2012005000071
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 Farmacognosia
publisher.none.fl_str_mv Sociedade Brasileira de Farmacognosia
dc.source.none.fl_str_mv Revista Brasileira de Farmacognosia v.22 n.4 2012
reponame:Revista Brasileira de Farmacognosia (Online)
instname:Sociedade Brasileira de Farmacognosia (SBFgnosia)
instacron:SBFGNOSIA
instname_str Sociedade Brasileira de Farmacognosia (SBFgnosia)
instacron_str SBFGNOSIA
institution SBFGNOSIA
reponame_str Revista Brasileira de Farmacognosia (Online)
collection Revista Brasileira de Farmacognosia (Online)
repository.name.fl_str_mv Revista Brasileira de Farmacognosia (Online) - Sociedade Brasileira de Farmacognosia (SBFgnosia)
repository.mail.fl_str_mv rbgnosia@ltf.ufpb.br
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