What is the reason of formation of embryoid from pollen grain in tissue culture medium
A
Cellular totipotency
B
Organogenesis
C
Double fertilization
D
Test tube culture
The answer is A.
Solution
Totipotency is the ability of a single living plant cell to grow into a complete plant. When pollen grains (or anthers) are cultured on a suitable medium, the haploid pollen cells divide and form embryo-like structures called embryoids, which can grow into haploid plants (Guha and Maheshwari, 1964). This shows that even a pollen grain cell is totipotent. So embryoids form from pollen grains because of cellular totipotency.
ConceptTotipotency and haploid culture
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