Fertilization in flowering plants

详细信息    查看全文

• 作者：K. R. Shivanna
• 关键词：Homospecific and heterospecific pollen ; pollen recognition ; pollen screening and selection ; pollenpistil interaction ; pollen competition ; self ; incompatibility
• 刊名：Resonance
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：21
• 期：11
• 页码：1007-1018
• 全文大小：311 KB
• 刊物主题：Science Education; Science, general;
• 出版者：Springer India
• ISSN：0973-712X
• 卷排序：21

文摘

After the pollen grain reaches the stigma through outsourced agents (pollinators), the next step before fertilization is to select the right type of pollen. Similar to a marriage in human beings, fiowering plants also have evolved elaborate screening process to select the right pollen grains and to reject the wrong ones. Even after initial screening for the right pollen, the pistil imposes a tough competition amongst them, comparable to a swayamvara of Indian mythology, to select the best available pollen. Flowering plants have evolved into a matriarchal society. The selection of the male partner is totally the prerogative of the mother (pistil); the boy (pollen grain) and the girl (ovule) has no say in this selection.