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Callase enzyme which dissolved callose o...

Callase enzyme which dissolved callose of pollen tetrads to separate four pollens is provided by

A

pollens

B

tapetum

C

middle layers

D

endothecium

Text Solution

Verified by Experts

The correct Answer is:
B
Tapetum secretes Ubisch bodies which get covered with sporopollenin and so increase thickness of exine of pollen grain wall. Tapetum provides nourishment to developing microspores. It also secretes callase enzyme which dissolves callose substances by which four pollens of a pollen tetrad are united, hence sparating microspores or pollens of a tetrad.
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