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  4. The innermost wall layer of microsporangium nourishing the developing pollen grains is known as

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Q. The innermost wall layer of microsporangium nourishing the developing pollen grains is known as

AMUAMU 2012Sexual Reproduction in Flowering Plants

Solution:

Tapetum is the inner most layer of anther (microsporangium) wall and is generally comprised only a single layer of nutritive cells. It provides nourishment to the developing pollen grains.