why does the pollen grain not disintegrate in adverse environmental condition

Asked by begomhamida567 | 12th Jun, 2021, 04:52: PM

Expert Answer:

The exine is the outer covering of pollen grain which is highly sculptured with sporopollenin; a chemically inert polymer of carotenoid ester which is highly resistant to degradation by any enzyme, as known so far. It can withstand extremes of temperature and desiccation.

Answered by Sheetal Kolte | 14th Jun, 2021, 12:52: PM