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Temperature may affect pollen colour

ANI  |  Washington D.C. [USA] 

Pigmentation of petals has received substantial attention, but not many know about pigmentation.

A new Phytologist study of the North American herb Campanula Americana revealed that western populations have darker purple due to extremely high temperatures than eastern populations where white to light-purple is more common.

The findings revealed that dark pollen outperforms light pollen under higher temperature and UV rays.

Dr of the said, "In light of global change, temperature stress could be an increasingly important selective agent on pollen pigmentation."

According to researchers, differential heat tolerance among pollen colour variants can contribute to geographic variation in pollen pigmentation.

Western populations also experience more extreme high temperatures and elevated UV-B irradiance.

The research appears in New Phytologist journal.

(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)

First Published: Sun, January 07 2018. 06:49 IST