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List out the functions of tapetum....

List out the functions of tapetum.

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* It supplies nutrition to the developing microspores.
* It contributes sporopollenin through ubisch bodies thus plays an important role in pollen wall formation
* The pollenkitt material is contributed by tapetal cells and is later transferred to the pollen surface.
* Exine proteins responsible for .rejection reaction. of the stigma are present in the cavities of the exine. These proteins are derived from tapetal cells.
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