摘要
研究了CO_2浓度倍增对垂柳(Salix babylonica L.)和杜仲(Eucommia ulmoides Oliv.)叶片光合色素含量、叶绿体对光能吸收能力和激发能在两个光系统之间分配的影响。结果表明,CO_2 浓度倍增能提高垂柳叶片单位鲜重和单位叶面积叶绿素(Chl)和类胡萝卜素(Car)的含量;提高杜仲Chl含量,降低Car含量。CO_2浓度倍增能提高含等量Chl的叶绿体对光能的吸收和激发能在两个光系统间分配的调节能力。
Under CO2 doubling, the content of chlorophyll and carotenoid per unit fresh weight and per unit area of leaves from weeping willow (Salix babylonica L.) as well as chlorophyll of eucommia (Eucommia ulmoides Oliv.) were raised, but carotenoid content of eucommia was reduced. The capability of light energy absorption of chloroplasts and regulative capability of excitation energy distribution between PS II and PS I were also raised by doubled CO2 condition.
基金
国家自然科学基金
关键词
垂柳
杜仲
CO2浓度倍增
光能吸收
叶绿体
Salix babylonica, Eucommia ulmoides, Doubled C0_2 concentration, Photosynthetic pigments, Absorption light energy, Excitation energy distribution
