Nectarios septales, superficies nectaríferas, coléteres, y aspectos relacionados con la polinización en Canna lineata Ciciarelli (Cannaceae-Zingiberales)

This manuscript encompasses part of a study carried out on the structure and anatomy of flowers in C. lineata. Glandular nectariferous epidermal surfaces, nectar guides of androecium pieces, septal nectaries and colleters of the ovary have been described for the first time. Rows of capitate papillae...

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Detalles Bibliográficos
Autor principal: Ciciarelli, María de las Mercedes
Formato: Articulo
Lenguaje:Español
Publicado: 2014
Materias:
Ciencias Naturales
Canna lineata
Colleters
Entomophily
Nectar
Nectariferous surfaces
Ornitophyly
Pollination
Septal nectaries
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85647
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85647
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Naturales
Canna lineata
Colleters
Entomophily
Nectar
Nectariferous surfaces
Ornitophyly
Pollination
Septal nectaries
spellingShingle Ciencias Naturales
Canna lineata
Colleters
Entomophily
Nectar
Nectariferous surfaces
Ornitophyly
Pollination
Septal nectaries
Ciciarelli, María de las Mercedes
Nectarios septales, superficies nectaríferas, coléteres, y aspectos relacionados con la polinización en Canna lineata Ciciarelli (Cannaceae-Zingiberales)
topic_facet Ciencias Naturales
Canna lineata
Colleters
Entomophily
Nectar
Nectariferous surfaces
Ornitophyly
Pollination
Septal nectaries
description This manuscript encompasses part of a study carried out on the structure and anatomy of flowers in C. lineata. Glandular nectariferous epidermal surfaces, nectar guides of androecium pieces, septal nectaries and colleters of the ovary have been described for the first time. Rows of capitate papillae form nectar guides of labellum whereas convexed and flattened papillae constitute staminodes and petaloid stamen. Prenectar has been tested in papillae of all androecium pieces where nectar secretion starts in phloem of amphicribal vascular bundles and associate parenchyma to be secreted through cuticular pores of epidermis. In septal nectaries, 1-3 layers of parenchyma and numerous cylindrical tricomes narrowed in the apex secrete nectar towards the channels. The fluid is stored in the nectar chamber of the floral tube upon the ovary. Analysis of the chemical composition of nectar allowed us to confirm ornitophyly in C. indica and entomophily in C. lineata. Pollination traits are discussed and it is proposed that other species of Canna with nectariferous flowers of wide and flattened labellum which attract both insects and birds, would conform a mixed floral sindrome. External wall of the ovary is composed by many colleters of the claviform type, it is proposed that they would function as protective structures of ovules and subsequently of the developing seeds. Studies have been carried out with fresh flowers under light microscope and SEM.
format Articulo
Articulo
author Ciciarelli, María de las Mercedes
author_facet Ciciarelli, María de las Mercedes
author_sort Ciciarelli, María de las Mercedes
title Nectarios septales, superficies nectaríferas, coléteres, y aspectos relacionados con la polinización en Canna lineata Ciciarelli (Cannaceae-Zingiberales)
title_short Nectarios septales, superficies nectaríferas, coléteres, y aspectos relacionados con la polinización en Canna lineata Ciciarelli (Cannaceae-Zingiberales)
title_full Nectarios septales, superficies nectaríferas, coléteres, y aspectos relacionados con la polinización en Canna lineata Ciciarelli (Cannaceae-Zingiberales)
title_fullStr Nectarios septales, superficies nectaríferas, coléteres, y aspectos relacionados con la polinización en Canna lineata Ciciarelli (Cannaceae-Zingiberales)
title_full_unstemmed Nectarios septales, superficies nectaríferas, coléteres, y aspectos relacionados con la polinización en Canna lineata Ciciarelli (Cannaceae-Zingiberales)
title_sort nectarios septales, superficies nectaríferas, coléteres, y aspectos relacionados con la polinización en canna lineata ciciarelli (cannaceae-zingiberales)
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/85647
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bdutipo_str Repositorios
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