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Hilum (biology) : ウィキペディア英語版
Hilum (biology)

In botany, a hilum (pronounced ) is a scar or mark left on a seed coat by the former attachment to the ovary wall or to the funiculus (which in turn attaches to the ovary wall). On a bean seed, the hilum is called the "eye".
For some species of fungus, the hilum is the microscopic indentation left on a spore when it separates from the sterigma of the basidium.
A hilum can also be a nucleus of a starch grain; the point around which layers of protein are deposited.
The adjectival form ''hilar'' denotes the presence of such a mark, and can be used as a distinguishing characteristic of a seed or spore.
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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