Pollen and nectar as a reward in the basal epidendroid Psilochilus modestus (Orchidaceae : Triphoreae): A study of floral morphology, reproductive biology and pollination strategy

dc.creatorPansarin, ER
dc.creatordo Amaral, MDE
dc.date2008
dc.date2014-11-16T21:05:17Z
dc.date2015-11-26T16:25:19Z
dc.date2014-11-16T21:05:17Z
dc.date2015-11-26T16:25:19Z
dc.date.accessioned2018-03-28T23:06:06Z
dc.date.available2018-03-28T23:06:06Z
dc.identifierFlora. Elsevier Gmbh, Urban & Fischer Verlag, v. 203, n. 6, n. 474, n. 483, 2008.
dc.identifier0367-2530
dc.identifierWOS:000258867800003
dc.identifier10.1016/j.flora.2007.07.004
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/70633
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/70633
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/70633
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1268602
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionPsilochilus modestus Barb. Rodr. is a basal epidendroid orchid occurring in both the semi-deciduous and Atlantic rain forests of the state of Sao Paulo, southeastern Brazil. This species presents a perfect flowering synchrony within populations, since all the mature buds of each plant open simultaneously in the morning hours of the same day. These flowers are available only for I day and are pollinated by several species of small solitary and social native bees. These bees exploit both pollen and nectar as a reward. The bees collecting pollen promote a higher fruit set and perform mainly self-pollination while those collecting nectar, which are less numerous. are responsible for an increase in cross-pollinations. P. modestus is self-compatible but pollinator dependent. Natural fruit set (open pollination) is low when compared with the numbers obtained under manual self- and cross-pollination. Low fruit set in natural conditions is related to deficient pollen transfer, and pollinator inefficiency seems to be the main factor. Some factors, such as the small amount of nectar produced, the low number of flowers per inflorescence and their availability for I day only added to the perfect flowering synchrony seem to be responsible for the increase of cross-pollinations. The offering of both pollen and nectar Lis a reward can represent a transitional condition in basal Epidendroideae. Based on floral morphology, reward production and pollinator behavior. the relationship of P. modestus with the basal and most derived groups Within Orchidaceac Is discussed. Crown Copyright (c) 2008 Published by Elsevier GmbH. All rights reserved.
dc.description203
dc.description6
dc.description474
dc.description483
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFAPESP [98/05097-0]
dc.languageen
dc.publisherElsevier Gmbh, Urban & Fischer Verlag
dc.publisherJena
dc.publisherAlemanha
dc.relationFlora
dc.relationFlora
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectfloral biology
dc.subjectOrchidaceae
dc.subjectpollination
dc.subjectPsilochilus
dc.subjectreproductive biology
dc.subjectTriphoreae
dc.subjectFruit Production
dc.subjectSexual Reproduction
dc.subjectLimitations
dc.subjectEvolution
dc.subjectSequences
dc.titlePollen and nectar as a reward in the basal epidendroid Psilochilus modestus (Orchidaceae : Triphoreae): A study of floral morphology, reproductive biology and pollination strategy
dc.typeArtículos de revistas


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