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增强UV-B辐射对作物生理代谢、DNA和蛋白质的影响研究进展

李元;何永美;祖艳群   

  1. 云南农业大学资源与环境学院,昆明 650201
  • 收稿日期:2004-12-15 修回日期:2005-03-24 出版日期:2006-01-18 发布日期:2006-01-18

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

摘要: 大气平流层的臭氧层逐渐破坏导致太阳辐射中抵达地球表面的UV-B辐射增加,对作物产生不同程度的影响.本文讨论了UV-B辐射增强对作物生理代谢、DNA损伤和蛋白质含量的影响.UV-B辐射增强,作物叶片类黄酮含量增加、叶绿素含量降低、光合作用减弱,同时UV-B辐射诱致基因活性变化,导致DNA损伤和蛋白质含量的改变.

关键词: 13C, 苹果, 钾水平, 吸收, 15N

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