Anatomy of the floral nectary of ornithophilous Elleanthus brasiliensis (Lindl.) Rchb.f. (Orchidaceae: Sobralieae)

Autores
Nunes, Carlos E. P.; Castro, Marilia de Moraes; Galetto, Leonardo; Sazima, Marlies
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Orchidaceae show enormous floral diversity. However, anatomical studies of nectary tissues relative to nectar composition and pollinators are scarce. This work aims to present a detailed anatomical study of the labellar nectary of Elleanthus brasiliensis, analyse the chemical composition of its nectar and relate these findings to pollination biology. Basally, the labellum bears a pair of fleshy, whitish, ovoid calli on its adaxial surface. Nectariferous callus tissue consists of a papillate epidermis and enlarged subepidermal parenchyma cells with thin walls, large nuclei and dense cytoplasm which stained positively for hydrophilic substances, interpreted as pre-nectar. The paired calli lack vascular tissues, but at the point of callus insertion, the diameters of vascular bundles supplying the lip are larger. Nectar is secreted as droplets on the adaxial callus surface. It is produced in small quantities, c. 4 μL per flower. Callus cell contents tested negative for polysaccharides, lipids and phenolic compounds. The nectar is sucrose-dominant, as in other hummingbird-pollinated species. It is suggested that other ornithophilous species of Sobralieae have anatomically similar nectaries.
Fil: Nunes, Carlos E. P.. Universidade Estadual de Campinas; Brasil
Fil: Castro, Marilia de Moraes. Universidade Estadual de Campinas; Brasil
Fil: Galetto, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Sazima, Marlies. Universidade Estadual de Campinas; Brasil
Materia
Anatomy
Nectary
Orchidaceae
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
OAI Identificador
oai:ri.conicet.gov.ar:11336/10153
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Anatomy of the floral nectary of ornithophilous Elleanthus brasiliensis (Lindl.) Rchb.f. (Orchidaceae: Sobralieae)Nunes, Carlos E. P.Castro, Marilia de MoraesGaletto, LeonardoSazima, MarliesAnatomyNectaryOrchidaceaehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Orchidaceae show enormous floral diversity. However, anatomical studies of nectary tissues relative to nectar composition and pollinators are scarce. This work aims to present a detailed anatomical study of the labellar nectary of Elleanthus brasiliensis, analyse the chemical composition of its nectar and relate these findings to pollination biology. Basally, the labellum bears a pair of fleshy, whitish, ovoid calli on its adaxial surface. Nectariferous callus tissue consists of a papillate epidermis and enlarged subepidermal parenchyma cells with thin walls, large nuclei and dense cytoplasm which stained positively for hydrophilic substances, interpreted as pre-nectar. The paired calli lack vascular tissues, but at the point of callus insertion, the diameters of vascular bundles supplying the lip are larger. Nectar is secreted as droplets on the adaxial callus surface. It is produced in small quantities, c. 4 μL per flower. Callus cell contents tested negative for polysaccharides, lipids and phenolic compounds. The nectar is sucrose-dominant, as in other hummingbird-pollinated species. It is suggested that other ornithophilous species of Sobralieae have anatomically similar nectaries.Fil: Nunes, Carlos E. P.. Universidade Estadual de Campinas; BrasilFil: Castro, Marilia de Moraes. Universidade Estadual de Campinas; BrasilFil: Galetto, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); ArgentinaFil: Sazima, Marlies. Universidade Estadual de Campinas; BrasilWiley2013-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/10153Nunes, Carlos E. P.; Castro, Marilia de Moraes; Galetto, Leonardo; Sazima, Marlies; Anatomy of the floral nectary of ornithophilous Elleanthus brasiliensis (Lindl.) Rchb.f. (Orchidaceae: Sobralieae); Wiley; Botanical Journal Of The Linnean Society; 171; 4; 5-2013; 764-7720024-4074enginfo:eu-repo/semantics/altIdentifier/doi/10.1111/boj.12024info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/boj.12024/abstractinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:28:12Zoai:ri.conicet.gov.ar:11336/10153instacron: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:34982025-09-29 10:28:13.054CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Anatomy of the floral nectary of ornithophilous Elleanthus brasiliensis (Lindl.) Rchb.f. (Orchidaceae: Sobralieae)
title Anatomy of the floral nectary of ornithophilous Elleanthus brasiliensis (Lindl.) Rchb.f. (Orchidaceae: Sobralieae)
spellingShingle Anatomy of the floral nectary of ornithophilous Elleanthus brasiliensis (Lindl.) Rchb.f. (Orchidaceae: Sobralieae)
Nunes, Carlos E. P.
Anatomy
Nectary
Orchidaceae
title_short Anatomy of the floral nectary of ornithophilous Elleanthus brasiliensis (Lindl.) Rchb.f. (Orchidaceae: Sobralieae)
title_full Anatomy of the floral nectary of ornithophilous Elleanthus brasiliensis (Lindl.) Rchb.f. (Orchidaceae: Sobralieae)
title_fullStr Anatomy of the floral nectary of ornithophilous Elleanthus brasiliensis (Lindl.) Rchb.f. (Orchidaceae: Sobralieae)
title_full_unstemmed Anatomy of the floral nectary of ornithophilous Elleanthus brasiliensis (Lindl.) Rchb.f. (Orchidaceae: Sobralieae)
title_sort Anatomy of the floral nectary of ornithophilous Elleanthus brasiliensis (Lindl.) Rchb.f. (Orchidaceae: Sobralieae)
dc.creator.none.fl_str_mv Nunes, Carlos E. P.
Castro, Marilia de Moraes
Galetto, Leonardo
Sazima, Marlies
author Nunes, Carlos E. P.
author_facet Nunes, Carlos E. P.
Castro, Marilia de Moraes
Galetto, Leonardo
Sazima, Marlies
author_role author
author2 Castro, Marilia de Moraes
Galetto, Leonardo
Sazima, Marlies
author2_role author
author
author
dc.subject.none.fl_str_mv Anatomy
Nectary
Orchidaceae
topic Anatomy
Nectary
Orchidaceae
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Orchidaceae show enormous floral diversity. However, anatomical studies of nectary tissues relative to nectar composition and pollinators are scarce. This work aims to present a detailed anatomical study of the labellar nectary of Elleanthus brasiliensis, analyse the chemical composition of its nectar and relate these findings to pollination biology. Basally, the labellum bears a pair of fleshy, whitish, ovoid calli on its adaxial surface. Nectariferous callus tissue consists of a papillate epidermis and enlarged subepidermal parenchyma cells with thin walls, large nuclei and dense cytoplasm which stained positively for hydrophilic substances, interpreted as pre-nectar. The paired calli lack vascular tissues, but at the point of callus insertion, the diameters of vascular bundles supplying the lip are larger. Nectar is secreted as droplets on the adaxial callus surface. It is produced in small quantities, c. 4 μL per flower. Callus cell contents tested negative for polysaccharides, lipids and phenolic compounds. The nectar is sucrose-dominant, as in other hummingbird-pollinated species. It is suggested that other ornithophilous species of Sobralieae have anatomically similar nectaries.
Fil: Nunes, Carlos E. P.. Universidade Estadual de Campinas; Brasil
Fil: Castro, Marilia de Moraes. Universidade Estadual de Campinas; Brasil
Fil: Galetto, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Sazima, Marlies. Universidade Estadual de Campinas; Brasil
description Orchidaceae show enormous floral diversity. However, anatomical studies of nectary tissues relative to nectar composition and pollinators are scarce. This work aims to present a detailed anatomical study of the labellar nectary of Elleanthus brasiliensis, analyse the chemical composition of its nectar and relate these findings to pollination biology. Basally, the labellum bears a pair of fleshy, whitish, ovoid calli on its adaxial surface. Nectariferous callus tissue consists of a papillate epidermis and enlarged subepidermal parenchyma cells with thin walls, large nuclei and dense cytoplasm which stained positively for hydrophilic substances, interpreted as pre-nectar. The paired calli lack vascular tissues, but at the point of callus insertion, the diameters of vascular bundles supplying the lip are larger. Nectar is secreted as droplets on the adaxial callus surface. It is produced in small quantities, c. 4 μL per flower. Callus cell contents tested negative for polysaccharides, lipids and phenolic compounds. The nectar is sucrose-dominant, as in other hummingbird-pollinated species. It is suggested that other ornithophilous species of Sobralieae have anatomically similar nectaries.
publishDate 2013
dc.date.none.fl_str_mv 2013-05
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/11336/10153
Nunes, Carlos E. P.; Castro, Marilia de Moraes; Galetto, Leonardo; Sazima, Marlies; Anatomy of the floral nectary of ornithophilous Elleanthus brasiliensis (Lindl.) Rchb.f. (Orchidaceae: Sobralieae); Wiley; Botanical Journal Of The Linnean Society; 171; 4; 5-2013; 764-772
0024-4074
url http://hdl.handle.net/11336/10153
identifier_str_mv Nunes, Carlos E. P.; Castro, Marilia de Moraes; Galetto, Leonardo; Sazima, Marlies; Anatomy of the floral nectary of ornithophilous Elleanthus brasiliensis (Lindl.) Rchb.f. (Orchidaceae: Sobralieae); Wiley; Botanical Journal Of The Linnean Society; 171; 4; 5-2013; 764-772
0024-4074
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/boj.12024
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/boj.12024/abstract
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
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
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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score 13.070432

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