Abstract:

Fluorescence induction kinetics was used to investigate the effects of dehydration and rehydration on photosynthesis of detached leaves of the desiccation-tolerant, resurrective plant Boea hygrometrica (Bunge) R. Br. In comparison with the desiccation-intolerant plant Chirita heterotricha Merr., the PSⅡphotochemical activity of Boea hygrometrica was characterized by a faster decline during dehydration and a much higher capacity of recovery during rehydration. By means of native PAGE, it was further shown that the thylakoid pigment-protein complexes of Boea hygrometrica were highly stable during dehydration and rehydration. These features may contribute to the extreme desiccation resistance of photosynthesis apparatus of resurrective plant Boea hygrometrica.

脱水和复水对复苏植物牛耳草离体叶片光合作用的影响
邓馨1* 胡志昂1** 王洪新1  温小刚2 匡廷云2

（1.中国科学院植物研究所，北京100093；2.  中国科学院植物研究所光合作用基础研究开放实验室，北京100093）
关键词： 复苏植物；耐脱水性；荧光诱导动力学；叶绿素；类胡萝卜素；色素蛋白复合体

Key words: resurrection plant, dehydration tolerance, fluorescence induction kinetics, chlorophyll, carotenoid, chlorophyll-protein complexes