镉和酸雨对大豆幼苗光合作用光反应的交互作用。
Interactive effects of cadmium and acid rain on photosynthetic light reaction in soybean seedlings.
机构信息
State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, PR China; School of Environmental and Civil Engineering, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, PR China.
School of Environmental and Civil Engineering, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, PR China.
出版信息
Ecotoxicol Environ Saf. 2012 May;79:62-68. doi: 10.1016/j.ecoenv.2011.12.004. Epub 2011 Dec 17.
Interactive effects of cadmium (Cd(2+)) and acid rain on photosynthetic light reaction in soybean seedlings were investigated under hydroponic conditions. Single treatment with Cd(2+) or acid rain and the combined treatment decreased the content of chlorophyll, Hill reaction rate, the activity of Mg(2+)-ATPase, maximal photochemical efficiency and maximal quantum yield, increased initial fluorescence and damaged the chloroplast structure in soybean seedlings. In the combined treatment, the change in the photosynthetic parameters and the damage of chloroplast structure were stronger than those of any single pollution. Meanwhile, Cd(2+) and acid rain had the interactive effects on the test indices in soybean seedlings. The results indicated that the combined pollution of Cd(2+) and acid rain aggravated the toxic effect of the single pollution of Cd(2+) or acid rain on the photosynthetic parameters due to the serious damage to the chloroplast structure.
在水培条件下，研究了镉（Cd(2+)）和酸雨对大豆幼苗光合作用光反应的交互作用。Cd(2+)或酸雨的单一处理以及联合处理均降低了叶绿素含量、希尔反应速率、Mg(2+)-ATP 酶活性、最大光化学效率和最大量子产量，增加了初始荧光并破坏了大豆幼苗的叶绿体结构。在联合处理中，光合参数的变化和叶绿体结构的破坏强于任何单一污染。同时，Cd(2+)和酸雨对大豆幼苗的测试指标具有交互作用。结果表明，由于叶绿体结构的严重破坏，Cd(2+)和酸雨的联合污染加剧了 Cd(2+)或酸雨单一污染对光合参数的毒性作用。
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