Secretory structures of Ipomoea asarifolia: anatomy and histochemistry

Detalhes bibliográficos
Autor(a) principal: Martins,Fabiano M.
Data de Publicação: 2012
Outros Autores: Lima,Jamile F., Mascarenhas,Ana Angélica S., Macedo,Thayane P.
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=S0102-695X2012000100003
Resumo: Ipomoea asarifolia (Desr.) Roem. & Schult., Convolvulaceae, is a weed that infests agricultural areas and is toxic to cattle. In spite of its toxicity, the leaves of this plant are used in traditional remedies in the state of Bahia, Brazil. The present work describes the leaf anatomy of I. asarifolia and characterizes the exudates of its secretory structures. The leaves have a unistratified epidermis composed of ordinary cells with straight to slightly sinuous anticlinal walls and thin cuticles. Paracytic stomata are found on both surfaces of the leaves at the same level as the ordinary epidermal cells. Trichomes producing polysaccharide secretions occur on the petiole and leaf blade and are considered colleters. The mesophyll is dorsiventral and the vascular bundle of the central vein is bicollateral. Two opposed nectaries occur on the petiole near the leaf blade. Each nectary is composed of a small canal with internal ramifications and numerous secretory trichomes. The laticiferous glands are articulated, not anastomosed, and are composed of large diameter cells with thin cell walls. The secretions of the laticiferous glands are lipidic.
id SBFGNOSIA-1_a8f4ced3b89ce84e2f7101d3f5c7cef4
oai_identifier_str oai:scielo:S0102-695X2012000100003
network_acronym_str SBFGNOSIA-1
network_name_str Revista Brasileira de Farmacognosia (Online)
repository_id_str
spelling Secretory structures of Ipomoea asarifolia: anatomy and histochemistrycolleterIpomoea asarifolialaticifernectarsecretory structureIpomoea asarifolia (Desr.) Roem. & Schult., Convolvulaceae, is a weed that infests agricultural areas and is toxic to cattle. In spite of its toxicity, the leaves of this plant are used in traditional remedies in the state of Bahia, Brazil. The present work describes the leaf anatomy of I. asarifolia and characterizes the exudates of its secretory structures. The leaves have a unistratified epidermis composed of ordinary cells with straight to slightly sinuous anticlinal walls and thin cuticles. Paracytic stomata are found on both surfaces of the leaves at the same level as the ordinary epidermal cells. Trichomes producing polysaccharide secretions occur on the petiole and leaf blade and are considered colleters. The mesophyll is dorsiventral and the vascular bundle of the central vein is bicollateral. Two opposed nectaries occur on the petiole near the leaf blade. Each nectary is composed of a small canal with internal ramifications and numerous secretory trichomes. The laticiferous glands are articulated, not anastomosed, and are composed of large diameter cells with thin cell walls. The secretions of the laticiferous glands are lipidic.Sociedade Brasileira de Farmacognosia2012-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-695X2012000100003Revista Brasileira de Farmacognosia v.22 n.1 2012reponame:Revista Brasileira de Farmacognosia (Online)instname:Sociedade Brasileira de Farmacognosia (SBFgnosia)instacron:SBFGNOSIA10.1590/S0102-695X2011005000162info:eu-repo/semantics/openAccessMartins,Fabiano M.Lima,Jamile F.Mascarenhas,Ana Angélica S.Macedo,Thayane P.eng2011-12-06T00:00:00Zoai:scielo:S0102-695X2012000100003Revistahttp://www.sbfgnosia.org.br/revista/https://old.scielo.br/oai/scielo-oai.phprbgnosia@ltf.ufpb.br1981-528X0102-695Xopendoar:2011-12-06T00:00Revista Brasileira de Farmacognosia (Online) - Sociedade Brasileira de Farmacognosia (SBFgnosia)false
dc.title.none.fl_str_mv Secretory structures of Ipomoea asarifolia: anatomy and histochemistry
title Secretory structures of Ipomoea asarifolia: anatomy and histochemistry
spellingShingle Secretory structures of Ipomoea asarifolia: anatomy and histochemistry
Martins,Fabiano M.
colleter
Ipomoea asarifolia
laticifer
nectar
secretory structure
title_short Secretory structures of Ipomoea asarifolia: anatomy and histochemistry
title_full Secretory structures of Ipomoea asarifolia: anatomy and histochemistry
title_fullStr Secretory structures of Ipomoea asarifolia: anatomy and histochemistry
title_full_unstemmed Secretory structures of Ipomoea asarifolia: anatomy and histochemistry
title_sort Secretory structures of Ipomoea asarifolia: anatomy and histochemistry
author Martins,Fabiano M.
author_facet Martins,Fabiano M.
Lima,Jamile F.
Mascarenhas,Ana Angélica S.
Macedo,Thayane P.
author_role author
author2 Lima,Jamile F.
Mascarenhas,Ana Angélica S.
Macedo,Thayane P.
author2_role author
author
author
dc.contributor.author.fl_str_mv Martins,Fabiano M.
Lima,Jamile F.
Mascarenhas,Ana Angélica S.
Macedo,Thayane P.
dc.subject.por.fl_str_mv colleter
Ipomoea asarifolia
laticifer
nectar
secretory structure
topic colleter
Ipomoea asarifolia
laticifer
nectar
secretory structure
description Ipomoea asarifolia (Desr.) Roem. & Schult., Convolvulaceae, is a weed that infests agricultural areas and is toxic to cattle. In spite of its toxicity, the leaves of this plant are used in traditional remedies in the state of Bahia, Brazil. The present work describes the leaf anatomy of I. asarifolia and characterizes the exudates of its secretory structures. The leaves have a unistratified epidermis composed of ordinary cells with straight to slightly sinuous anticlinal walls and thin cuticles. Paracytic stomata are found on both surfaces of the leaves at the same level as the ordinary epidermal cells. Trichomes producing polysaccharide secretions occur on the petiole and leaf blade and are considered colleters. The mesophyll is dorsiventral and the vascular bundle of the central vein is bicollateral. Two opposed nectaries occur on the petiole near the leaf blade. Each nectary is composed of a small canal with internal ramifications and numerous secretory trichomes. The laticiferous glands are articulated, not anastomosed, and are composed of large diameter cells with thin cell walls. The secretions of the laticiferous glands are lipidic.
publishDate 2012
dc.date.none.fl_str_mv 2012-02-01
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=S0102-695X2012000100003
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-695X2012000100003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0102-695X2011005000162
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.1 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
_version_ 1752122466554085376