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Effects of enhanced UV-B radiation on physiological metabolism,DNA and protein of crops:A review

LI Yuan;HE Yongmei;ZU Yanqun   

  1. College of Resources and Environment,Yunnan Agricultural University,Kunming 650201,China

  • Received:2004-12-15 Revised:2005-03-24 Online:2006-01-18 Published:2006-01-18

Abstract: Ozone depletion in stratosphere has led to the increase of solar UV-B radiation reaching to the earth surface,which would affect crops to various extents.This review dealt with the effects of enhanced UV-B radiation on the physiological metabolism,DNA damage and protein content of crops.Enhanced UV-B radiation could increase crops’ flavonoid content but decrease their chlorophyll content and photosynthesis,induce gene change,and result in DNA damage and change of protein content.

Key words: potassium level, absorption., 13C, 15N, apple