模拟和实证的风媒传粉模式的针叶树雌球果。

Simulated and empiric wind pollination patterns of conifer ovulate cones.

机构信息

Section of Plant Biology, Division of Biological Sciences, Cornell University, Ithaca, New York 14853.

出版信息

Proc Natl Acad Sci U S A. 1982 Jan;79(2):510-4. doi: 10.1073/pnas.79.2.510.

DOI:10.1073/pnas.79.2.510

PMID:16593147

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC345773/

Abstract

Wind tunnel analyses of conifer ovulate cones indicate that the total geometry of the cone enhances the probability of pollen entrapment. Aerodynamic characteristics of cone scale-bract complexes are such that suspended pollen is directed toward the micropyles of attached ovules. Within the taxa examined, there appears to be a preferential entrapment by ovulate cones of pollen of the same species. The data are interpreted as evidence for an aerodynamic reciprocity between wind-suspended pollen and the structure of ovulate cones which increases the frequency of pollination and the potential for fertilization.

摘要

风洞分析表明，针叶球果的整体形状增加了花粉被捕获的概率。球果鳞片-苞鳞复合体的空气动力学特性使得悬浮的花粉被引导至附着胚珠的珠孔处。在所研究的分类群中，同种花粉似乎更容易被球果捕获。这些数据表明，风载花粉与球果结构之间存在空气动力学相互作用，这种相互作用增加了授粉的频率和受精的可能性。