首页> 外文会议>NATO Advanced Research Workshop on The Chloroplast: From Molecular Biology to Biotechnology Kolymbari-Chania, Crete, Greece 10-15 August 1998 >The stabilizing effect of glycine betaine on the modified photosystem ii particles under heat stress
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The stabilizing effect of glycine betaine on the modified photosystem ii particles under heat stress

机译:甘氨酸甜菜碱对热应激下改性光系统ii颗粒的稳定作用

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The compatible solute glycine betaine is strongly implicated as an osmoprotectant in cyanobacteria, green algae and higher plants. It was shown that glycine betaine protects photosystem II (PSII) complex against the high salt induced dissociation of the extrinsic proteins ant the manganese cluster. A similar type of protective effect of glycine betaine has been observed in the oxygen evolution by cyanobacterial thylakoid membranes against heat inactivation. By contrast, glycine betaine as assumed has no stabilizing effect on processes not connected with the oxygen evolving mechanisms of the PSII complex.
机译:相容性溶质甘氨酸甜菜碱在蓝细菌,绿藻和高等植物中强烈作为渗透保护剂。结果表明,甘氨酸甜菜碱可以保护光系统II(PSII)复合物免受高盐诱导的锰簇外源蛋白的解离。在蓝藻类囊体膜对热失活的放氧过程中,已观察到类似类型的甘氨酸甜菜碱的保护作用。相比之下,假定的甘氨酸甜菜碱对与PSII络合物的氧气释放机理无关的过程没有稳定作用。

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