期刊
INTERNATIONAL JOURNAL OF PLANT SCIENCES
卷 165, 期 6, 页码 1039-1045出版社
UNIV CHICAGO PRESS
DOI: 10.1086/423876
关键词
Bombus impatiens; bumblebees; monkey flower; Mimulus guttatus; phenotypic manipulation; pollen-collecting hairs
The showy corolla of Mimulus guttatus is generally considered an adaptation to attract pollinators. We use phenotypic manipulations to demonstrate that corolla morphology plays a critical mechanical role in both outcrossing and self-fertilization. In the absence of pollinators, the lower portion of the corolla facilitates autogamy by retaining pollen released from the anthers. A substantial portion of self-fertilization seems to occur late in the floral life span as the stigma contacts the corolla. When pollinators are present, the corolla facilitates outcrossing before, during, and after insect visitation. A large fraction of cross-pollen is actually captured by the corolla and not by the stigma. This indirect'' pathway for pollen reception suggests that a large fraction of cross-pollination in M. guttatus actually occurs long after a pollinator departs from a flower.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据