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  4. Which of the following layers of anther wall helps in protection as well as in the dehiscence of anther for the release of pollen grains?

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Q. Which of the following layers of anther wall helps in protection as well as in the dehiscence of anther for the release of pollen grains?

NTA AbhyasNTA Abhyas 2020Sexual Reproduction in Flowering Plants

Solution:

In a transverse section of anther, a typical microsporangium appears near circular in outline. It is generally surrounded by four wall layers the epidermis, endothecium, middle layers and the tapetum. The outer three wall layers perform the function of protection and help in dehiscence of anther to release the pollen. The innermost wall layer is the tapetum. It nourishes the developing pollen grains.