Q.1
Which of the following pollen types respond best during anther culture?
- Pollen Dimorphism in Androgenesis: During anther and microspore culture, microspores differentiate into two physiological populations:
- S-grains (Sporophytic pollen grains): Smaller, poorly vacuolated, starched microspores with non-committed cytoplasm that respond preferentially by dividing symmetrically to initiate haploid embryogenesis.
- P-grains (Pollen grains): Normal gametophytic microspores committed to terminal pollen maturation that fail to undergo androgenic embryogenesis.
Correct option: (1) S-grains
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