Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/563
Type: Artigo de periódico
Title: Reproductive biology of Trichocentrum pumilum: an orchid pollinated by oil-collecting bees
Author: PANSARIN, E. R.
PANSARIN, L. M.
Abstract: The reproductive biology, reward production and pollination mechanism of Trichocentrum pumilum were studied in a gallery forest in the interior of the State of Sao Paulo, southeast Brazil. The floral visitors and pollination mechanism were recorded, and experimental pollinations were carried out in order to determine the breeding system of this species. Trichocentrum pumilum blooms in spring. Each paniculate inflorescence bears an average of 85 flowers that present a central yellow callus and finger-like trichomes on the lateral lobes of the lip. A lipoidal substance is produced and stored among these trichomes. In the studied population, T. pumilum is exclusively visited and pollinated by two bee species (Tetrapedia diversipes and Lophopedia nigrispinis). Pollinaria are deposited on mouthparts of bees during collection of the lipoidal substance from the lateral lobes of the labellum. Trichocentrum pumilum is self-incompatible and pollinator-limited. Natural fruit set was low (9%, compared to 45% in experimentally cross-pollinated flowers). Potentially viable seed exceed 97% in fruits obtained through cross-pollination and in natural conditions (open pollination).
Subject: Floral biology
Oncidiinae
Orchidaceae
pollination biology
reproductive biology
Trichocentrum
Country: Estados Unidos
Editor: WILEY-BLACKWELL
Citation: PLANT BIOLOGY, v.13, n.4, p.576-581, 2011
Rights: fechado
Identifier DOI: 10.1111/j.1438-8677.2010.00420.x
Address: http://dx.doi.org/10.1111/j.1438-8677.2010.00420.x
http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&UT=000291679100003&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord
Date Issue: 2011
Appears in Collections:IB - Artigos e Materiais de Revistas Científicas

Files in This Item:
File Description SizeFormat 
art_PANSARIN_Reproductive_biology_of_Trichocentrum_pumilum_an_orchid_2011.pdfpublished version366.8 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.