【摘要】 由于大气同温层的臭氧层逐渐被破坏变薄,增加了太阳UV-B辐射抵达地球表面的强度,对植物产生不同程度的影响。本文综述了近年来有关植物对增强UV-B辐射的防御机制,包括植物在生长、繁育与次生代谢过程中存在的防御机制、植物体内生物大分子对于UV-B辐射增强的防御和不同植物对于UV-B辐射增强的防御能力的差异,以及如何有效地利用该机制;同时提出了今后研究的方向和重点。更多还原

【Abstract】 With the destruction of ozone layer,ultraviolet-B radiation has been enhanced at the earth’s surface.The enhanced UV-B radiation would affect plants in various extents.The current research status of defense mechanisms for plants to enhanced UV-B radiation and application of these mechanisms were reviewed.The main research fields involved plant growth,repair of reproduction system,secondary metabolism and biological macromolecules because of enhanced UV-B radiation and differences in responses of different plants to enhanced UV-B radiation.Furthermore,some suggestions for future research in this field were put forward.更多还原