The uncommon cavitated secretory trichomes in Bauh... - BV FAPESP
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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The uncommon cavitated secretory trichomes in Bauhinia s.s. (Fabaceae): the same roles in different organs

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Author(s):
Marinho, Cristina Ribeiro [1] ; Oliveira, Rejane Barbosa [1, 2] ; Teixeira, Simone Padua [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Av Cafe S-N, BR-14040903 Ribeirao Preto, SP - Brazil
[2] Univ Tecnol Fed Parana, Rua Cerejeira S-N, BR-85892000 Santa Helena, PR - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Botanical Journal of the Linnean Society; v. 180, n. 1, p. 104-122, JAN 2016.
Web of Science Citations: 8
Abstract

Cavitated secretory trichomes are characterized by a short or absent stalk that is connected to a secretory hollow head. They are rare structures in angiosperms; in Fabaceae, they have been recorded in only seven genera, including Bauhinia s. s. Because B. curvula and B. rufa exhibit glands that are responsible for attracting pollinators to flowers, this study aimed to test whether the cavitated secretory trichomes present in the flowers of these species have an attraction function. As leaf trichomes are commonly related to plant defence, comparative analyses of the morphology, ontogeny, ultrastructure and chemical profile of the secretory trichomes present in flowers and leaves were conducted. It was found that cavitated secretory trichomes are similar in their external morphology and development, regardless of the organ or species analysed. However, interspecific differences were found in the secretion process and chemical profile of the exudate. The differences found in the cavitated secretory trichomes between species indicate that they secrete distinct compounds, whereas the similarities found in these structures between vegetative and reproductive organs indicate that the cavitated trichomes have equivalent ecological functions within a species, probably in plant defence during organ development. (C) 2015 The Linnean Society of London, Botanical Journal of the Linnean Society, 2015, 180, 104-122. (AU)

FAPESP's process: 09/01057-0 - Floral anatomy of species of Leguminosae with nocturnal pollination emphasizing the osmophores.
Grantee:Cristina Ribeiro Marinho
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 08/55434-7 - Secretory structures in plant species from cerrado: structural, chemical and ecological approaches
Grantee:Silvia Rodrigues Machado
Support Opportunities: BIOTA-FAPESP Program - Thematic Grants