Floral biology and breeding system of Bauhinia forficata (Leguminosae: Caesalpinioideae), a moth-pollinated tree in southeastern Brazil

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	Floral biology and breeding system of Bauhinia forficata (Leguminosae: Caesalpinioideae), a moth-pollinated tree in southeastern Brazil
	Paulino Neto, Hipolito Ferreira
刊名	BRAZILIAN JOURNAL OF BOTANY
	2013
卷号	36 期号:1 页码:55-64
关键词	SELF-INCOMPATIBILITY REPRODUCTIVE-BIOLOGY DECIDUOUS FOREST COLUMNAR CACTUS ASSEMBLAGES POLLEN POPULATION ANGIOSPERMS PRIMULACEAE SPHINGIDAE
ISSN号	1806-9959
中文摘要	Floral biology and breeding system of Bauhinia forficata (Leguminosae: Caesalpinioideae), a moth-pollinated tree in southeastern Brazil. Bauhinia trees have a wide variety of pollination and breeding systems that are affected by geographic distribution. Bauhinia species with nocturnal anthesis are usually chiropterophilous and/or sphingophilous. B. forficata Link has floral features that are typical of the sphingophilous condition and this report describes the floral biology, pollination, and breeding system of a population of this species in a small fragment of semideciduous forest in southeastern Brazil. Flowers lasted 18 h, anthesis started at dusk, and pollen release and nectar production occurred at 8:00 and 10:00 pm, respectively. Flowers were protandrous and the stigma became receptive around 11:00 pm with the bisexual phase ending at 12:00 am. Nectar was produced continuously; the mean total nectar volume/flower was 15.11 mu L and the mean total nectar concentration was 25.9 %. B. forficata is a strictly sphingophilous species that is pollinated exclusively by Manduca sexta L., the body morphology and behavior of which favor pollen transfer. Visitation by the bees Eulaema nigrita Lepeletier and Xylocopa brasilianorum L. (Apidae) occurred in the morning, but these species were considered occasional and not legitimate pollinators. Despite the geographic distance separating the Brazilian B. forficata from the Venezuelan B. aculeata, both species show very convergent pollination systems but differs in their faunal composition. B. forficata is homomorphic and predominantly self-incompatible; cross-pollination produces twice as much fruit as natural open pollinations, indicating a pollen limitation and relative inefficiency of the pollinator, the latter effect may reflect habitat disturbance that favors geitonogamous pollination and decreases the efficiency of pollination. More studies are necessary to investigate the relationship between habitat disturbance and geographic distribution on the pollination and breeding systems of Bauhinia species.
收录类别	SCI
原文出处	10.1007/s40415-013-0011-8
语种	英语
公开日期	2016-05-12
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/9825]
专题	西双版纳热带植物园_文献共享
推荐引用方式 GB/T 7714	Paulino Neto, Hipolito Ferreira. Floral biology and breeding system of Bauhinia forficata (Leguminosae: Caesalpinioideae), a moth-pollinated tree in southeastern Brazil[J]. BRAZILIAN JOURNAL OF BOTANY,2013,36(1):55-64.
APA	Paulino Neto, Hipolito Ferreira.(2013).Floral biology and breeding system of Bauhinia forficata (Leguminosae: Caesalpinioideae), a moth-pollinated tree in southeastern Brazil.BRAZILIAN JOURNAL OF BOTANY,36(1),55-64.
MLA	Paulino Neto, Hipolito Ferreira."Floral biology and breeding system of Bauhinia forficata (Leguminosae: Caesalpinioideae), a moth-pollinated tree in southeastern Brazil".BRAZILIAN JOURNAL OF BOTANY 36.1(2013):55-64.