Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Floral features, pollination biology, and breeding system of Comparettia coccinea (Orchidaceae: Oncidiinae)

Full text
Author(s):
Pansarin, Emerson R. [1] ; Pansarin, Ludmila M. [2] ; Alves-dos-Santos, Isabel [2]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Fac Filosofia Ciencias & Letras, Dept Biol, BR-14040901 Ribeirao Preto, SP - Brazil
[2] Univ Sao Paulo, Inst Biociencias, Dept Ecol, BR-05508900 Sao Paulo, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: FLORA; v. 217, p. 57-63, 2015.
Web of Science Citations: 8
Abstract

In Orchidaceae, nectar offering has been reported in many unrelated groups, including Oncidiinae. Among members of Oncidiinae, pollination by hummingbirds has been recorded for Comparettia in Central America, but nothing is known for the Brazilian species. The phenology, floral morpho-anatomy, production of floral rewards, pollinators, pollination mechanisms, and breeding system of Comparettia coccinea were investigated in a nature reserve in southeastern Brazil. The reddish flowers of C. coccinea produce nectar (volume 0.5-5 mu L, sugar concentration 17-28%) by two cylindrical glands located at the end of the labellum horns that can be accessed via two nectary entrances. The studied species is exclusively visited and pollinated by Nymphalidae butterflies and flower features, such as color, symmetry and morphology, support the occurrence of psychophily in C coccinea. Pollinaria are attached to the butterfly eyes during the collection of nectar from the spur. When a butterfly visits the right nectar entrance, pollinaria are deposited on its left eye and vice versa. The species is self-compatible and depends on a biotic pollen vector to set fruits. This is the first record of effective pollination by butterflies in Oncidiinae. (C) 2015 Elsevier GmbH. All rights reserved. (AU)

FAPESP's process: 07/07445-7 - Evolution of pollination systems of American Vanilloideae (Orchidaceae)
Grantee:Emerson Ricardo Pansarin
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 11/12720-2 - Anatomy, histochemistry and evolution of secretory structures and floral rewards in Oncidiinae (Orchidaceae)
Grantee:Ludmila Mickeliunas Pansarin
Support Opportunities: Scholarships in Brazil - Post-Doctoral