On the presence of uncommon stylar glandular trichomes in asteraceae: A study in Kaunia R.M. King and H. ROB. (oxylobinae, eupatorieae)

Autores
Viera Barreto, Jessica Noelia; Sancho, Gisela; Forte, Noelia Beatriz
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Premise of research. Glands on the styles of Asteraceae are uncommon. They are reported in Kaunia for the first time. Glandular trichomes of plants are involved in the synthesis of secondary metabolites. In Kaunia, secondary compounds with medicinal cytotoxic, antitumor activity, and sensitizing capacity were previously identified. In this frame, a deeper knowledge of glandular trichomes could shed light on the productivity of medicinal substances in Kaunia. The potential taxonomic and ecological value of stylar glandular trichomes in Kaunia is also explored together with trichome secretion phases throughout the floral developmental stages. Methodology. Herbarium specimens and flowers fixed in FAA of 10 species of Kaunia were analyzed. Flowers in different developmental stages were studied to observe the secretory phases of stylar trichomes. A histochemical test was carried out to detect sesquiterpene lactones on stylar glandular trichomes. Pivotal results. Glandular trichomes were detected on the ventral face of style branches in eight species of Kaunia in all floral stages analyzed. The stylar trichomes observed were mostly found in secretory or early postsecretory phases in the most immature floral stages. The histochemical test in stylar trichomes was positive for sesquiterpene lactones. Conclusions. The presence of stylar glandular trichomes provides valuable new evidence for the identification and characterization of Kaunia. Within the Eupatorieae, the presence of stylar glandular trichomes could be interpreted as taxonomically valuable at the rank of genus. Our finding of sesquiterpene lactones is in agreement with the presence of Guaianolides and Germacranolides previously isolated in Kaunia. Apparently, the secretion of trichomes is completed before the opening of the corolla. The glands on styles of Kaunia could be the most internal barrier to herbivores that could flank outer floral structures during pollen and style development.
Fil: Viera Barreto, Jessica Noelia. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sancho, Gisela. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Forte, Noelia Beatriz. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
COMPOSITAE
MORPHOLOGY
SECRETORY STRUCTURES
SESQUITERPENE LACTONES
STYLE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
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oai:ri.conicet.gov.ar:11336/54779
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oai_identifier_str oai:ri.conicet.gov.ar:11336/54779
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling On the presence of uncommon stylar glandular trichomes in asteraceae: A study in Kaunia R.M. King and H. ROB. (oxylobinae, eupatorieae)Viera Barreto, Jessica NoeliaSancho, GiselaForte, Noelia BeatrizCOMPOSITAEMORPHOLOGYSECRETORY STRUCTURESSESQUITERPENE LACTONESSTYLEhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Premise of research. Glands on the styles of Asteraceae are uncommon. They are reported in Kaunia for the first time. Glandular trichomes of plants are involved in the synthesis of secondary metabolites. In Kaunia, secondary compounds with medicinal cytotoxic, antitumor activity, and sensitizing capacity were previously identified. In this frame, a deeper knowledge of glandular trichomes could shed light on the productivity of medicinal substances in Kaunia. The potential taxonomic and ecological value of stylar glandular trichomes in Kaunia is also explored together with trichome secretion phases throughout the floral developmental stages. Methodology. Herbarium specimens and flowers fixed in FAA of 10 species of Kaunia were analyzed. Flowers in different developmental stages were studied to observe the secretory phases of stylar trichomes. A histochemical test was carried out to detect sesquiterpene lactones on stylar glandular trichomes. Pivotal results. Glandular trichomes were detected on the ventral face of style branches in eight species of Kaunia in all floral stages analyzed. The stylar trichomes observed were mostly found in secretory or early postsecretory phases in the most immature floral stages. The histochemical test in stylar trichomes was positive for sesquiterpene lactones. Conclusions. The presence of stylar glandular trichomes provides valuable new evidence for the identification and characterization of Kaunia. Within the Eupatorieae, the presence of stylar glandular trichomes could be interpreted as taxonomically valuable at the rank of genus. Our finding of sesquiterpene lactones is in agreement with the presence of Guaianolides and Germacranolides previously isolated in Kaunia. Apparently, the secretion of trichomes is completed before the opening of the corolla. The glands on styles of Kaunia could be the most internal barrier to herbivores that could flank outer floral structures during pollen and style development.Fil: Viera Barreto, Jessica Noelia. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Sancho, Gisela. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Forte, Noelia Beatriz. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaUniversity of Chicago Press2016-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/54779Viera Barreto, Jessica Noelia; Sancho, Gisela; Forte, Noelia Beatriz; On the presence of uncommon stylar glandular trichomes in asteraceae: A study in Kaunia R.M. King and H. ROB. (oxylobinae, eupatorieae); University of Chicago Press; International Journal of Plant Sciences; 177; 9; 11-2016; 760-7701058-5893CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1086/688709info:eu-repo/semantics/altIdentifier/url/https://www.journals.uchicago.edu/doi/10.1086/688709info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:51:12Zoai:ri.conicet.gov.ar:11336/54779instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:51:12.648CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv On the presence of uncommon stylar glandular trichomes in asteraceae: A study in Kaunia R.M. King and H. ROB. (oxylobinae, eupatorieae)
title On the presence of uncommon stylar glandular trichomes in asteraceae: A study in Kaunia R.M. King and H. ROB. (oxylobinae, eupatorieae)
spellingShingle On the presence of uncommon stylar glandular trichomes in asteraceae: A study in Kaunia R.M. King and H. ROB. (oxylobinae, eupatorieae)
Viera Barreto, Jessica Noelia
COMPOSITAE
MORPHOLOGY
SECRETORY STRUCTURES
SESQUITERPENE LACTONES
STYLE
title_short On the presence of uncommon stylar glandular trichomes in asteraceae: A study in Kaunia R.M. King and H. ROB. (oxylobinae, eupatorieae)
title_full On the presence of uncommon stylar glandular trichomes in asteraceae: A study in Kaunia R.M. King and H. ROB. (oxylobinae, eupatorieae)
title_fullStr On the presence of uncommon stylar glandular trichomes in asteraceae: A study in Kaunia R.M. King and H. ROB. (oxylobinae, eupatorieae)
title_full_unstemmed On the presence of uncommon stylar glandular trichomes in asteraceae: A study in Kaunia R.M. King and H. ROB. (oxylobinae, eupatorieae)
title_sort On the presence of uncommon stylar glandular trichomes in asteraceae: A study in Kaunia R.M. King and H. ROB. (oxylobinae, eupatorieae)
dc.creator.none.fl_str_mv Viera Barreto, Jessica Noelia
Sancho, Gisela
Forte, Noelia Beatriz
author Viera Barreto, Jessica Noelia
author_facet Viera Barreto, Jessica Noelia
Sancho, Gisela
Forte, Noelia Beatriz
author_role author
author2 Sancho, Gisela
Forte, Noelia Beatriz
author2_role author
author
dc.subject.none.fl_str_mv COMPOSITAE
MORPHOLOGY
SECRETORY STRUCTURES
SESQUITERPENE LACTONES
STYLE
topic COMPOSITAE
MORPHOLOGY
SECRETORY STRUCTURES
SESQUITERPENE LACTONES
STYLE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Premise of research. Glands on the styles of Asteraceae are uncommon. They are reported in Kaunia for the first time. Glandular trichomes of plants are involved in the synthesis of secondary metabolites. In Kaunia, secondary compounds with medicinal cytotoxic, antitumor activity, and sensitizing capacity were previously identified. In this frame, a deeper knowledge of glandular trichomes could shed light on the productivity of medicinal substances in Kaunia. The potential taxonomic and ecological value of stylar glandular trichomes in Kaunia is also explored together with trichome secretion phases throughout the floral developmental stages. Methodology. Herbarium specimens and flowers fixed in FAA of 10 species of Kaunia were analyzed. Flowers in different developmental stages were studied to observe the secretory phases of stylar trichomes. A histochemical test was carried out to detect sesquiterpene lactones on stylar glandular trichomes. Pivotal results. Glandular trichomes were detected on the ventral face of style branches in eight species of Kaunia in all floral stages analyzed. The stylar trichomes observed were mostly found in secretory or early postsecretory phases in the most immature floral stages. The histochemical test in stylar trichomes was positive for sesquiterpene lactones. Conclusions. The presence of stylar glandular trichomes provides valuable new evidence for the identification and characterization of Kaunia. Within the Eupatorieae, the presence of stylar glandular trichomes could be interpreted as taxonomically valuable at the rank of genus. Our finding of sesquiterpene lactones is in agreement with the presence of Guaianolides and Germacranolides previously isolated in Kaunia. Apparently, the secretion of trichomes is completed before the opening of the corolla. The glands on styles of Kaunia could be the most internal barrier to herbivores that could flank outer floral structures during pollen and style development.
Fil: Viera Barreto, Jessica Noelia. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sancho, Gisela. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Forte, Noelia Beatriz. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División de Plantas Vasculares; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Premise of research. Glands on the styles of Asteraceae are uncommon. They are reported in Kaunia for the first time. Glandular trichomes of plants are involved in the synthesis of secondary metabolites. In Kaunia, secondary compounds with medicinal cytotoxic, antitumor activity, and sensitizing capacity were previously identified. In this frame, a deeper knowledge of glandular trichomes could shed light on the productivity of medicinal substances in Kaunia. The potential taxonomic and ecological value of stylar glandular trichomes in Kaunia is also explored together with trichome secretion phases throughout the floral developmental stages. Methodology. Herbarium specimens and flowers fixed in FAA of 10 species of Kaunia were analyzed. Flowers in different developmental stages were studied to observe the secretory phases of stylar trichomes. A histochemical test was carried out to detect sesquiterpene lactones on stylar glandular trichomes. Pivotal results. Glandular trichomes were detected on the ventral face of style branches in eight species of Kaunia in all floral stages analyzed. The stylar trichomes observed were mostly found in secretory or early postsecretory phases in the most immature floral stages. The histochemical test in stylar trichomes was positive for sesquiterpene lactones. Conclusions. The presence of stylar glandular trichomes provides valuable new evidence for the identification and characterization of Kaunia. Within the Eupatorieae, the presence of stylar glandular trichomes could be interpreted as taxonomically valuable at the rank of genus. Our finding of sesquiterpene lactones is in agreement with the presence of Guaianolides and Germacranolides previously isolated in Kaunia. Apparently, the secretion of trichomes is completed before the opening of the corolla. The glands on styles of Kaunia could be the most internal barrier to herbivores that could flank outer floral structures during pollen and style development.
publishDate 2016
dc.date.none.fl_str_mv 2016-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/54779
Viera Barreto, Jessica Noelia; Sancho, Gisela; Forte, Noelia Beatriz; On the presence of uncommon stylar glandular trichomes in asteraceae: A study in Kaunia R.M. King and H. ROB. (oxylobinae, eupatorieae); University of Chicago Press; International Journal of Plant Sciences; 177; 9; 11-2016; 760-770
1058-5893
CONICET Digital
CONICET
url http://hdl.handle.net/11336/54779
identifier_str_mv Viera Barreto, Jessica Noelia; Sancho, Gisela; Forte, Noelia Beatriz; On the presence of uncommon stylar glandular trichomes in asteraceae: A study in Kaunia R.M. King and H. ROB. (oxylobinae, eupatorieae); University of Chicago Press; International Journal of Plant Sciences; 177; 9; 11-2016; 760-770
1058-5893
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1086/688709
info:eu-repo/semantics/altIdentifier/url/https://www.journals.uchicago.edu/doi/10.1086/688709
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv University of Chicago Press
publisher.none.fl_str_mv University of Chicago Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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