Ubisch bodies are secreted by

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(A) The $Tapetum$ is the innermost layer of the microsporangium wall and is generally composed of a single layer of nutritive cells.These cells are re

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Tapetum

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(A) The $Tapetum$ is the innermost layer of the microsporangium wall and is generally composed of a single layer of nutritive cells.These cells are responsible for providing nourishment to the developing pollen grains.Additionally,the $Tapetum$ secretes $Ubisch$ bodies (also known as orbicules),which are lipid-rich granules.These $Ubisch$ bodies play a crucial role in the formation and deposition of $sporopollenin$ on the $exine$ of pollen grains.

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