NDH-1 Is Important for Photosystem I Function of Synechocystis sp. Strain PCC 6803 under Environmental Stress Conditions.
NDH-1 Is Important for Photosystem I Function of Synechocystis sp. Strain PCC 6803 under Environmental Stress Conditions.
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NDH-1 对于集胞藻的光系统 I 功能很重要。
DOI：
10.3389/fpls.2017.02183
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发表时间：
2017
影响因子：
5.6
通讯作者：
Ma W
中科院分区：
文献类型：
--
作者：
Zhao J;Gao F;Fan DY;Chow WS;Ma W
蓝细菌NDH-1与光系统I（PSI）相互作用形成NDH-1-PSI超复合物。在这里，我们观察到，NDH-1的缺乏几乎没有，如果有的话，在生长条件下的PSI的功能部分的影响，但显着减少PSI的功能部分时，集胞藻属菌株PCC 6803的细胞被移动到多个应力的条件。PSII活性受损后，PSI的NDH-1依赖性功能组分开始显着减少。这一发现与我们的观察结果一致，即在生长条件下PSI的功能部分随着DCMU浓度的增加而迅速显著降低，DCMU通过阻断电子从QA转移到PSII反应中心的QB而迅速显著抑制PSII活性。此外，NDH-1的缺乏导致PSI在PSI本身的功能限制，而不是其供体侧和受体侧在多重应力的条件下。这得到了在不存在NDH-1但存在多重胁迫的情况下PSI复合物显著不稳定的结果的支持。基于以上结果，我们认为NDH-1在集胞藻PCC 6803的PSI功能中起重要作用，主要是通过在环境胁迫条件下维持PSI的稳定。
Cyanobacterial NDH-1 interacts with photosystem I (PSI) to form an NDH-1-PSI supercomplex. Here, we observed that absence of NDH-1 had little, if any, effect on the functional fractions of PSI under growth conditions, but significantly reduced the functional fractions of PSI when cells of Synechocystis sp. strain PCC 6803 were moved to conditions of multiple stresses. The significant reduction in NDH-1-dependent functional fraction of PSI was initiated after PSII activity was impaired. This finding is consistent with our observation that the functional fraction of PSI under growth conditions was rapidly and significantly decreased with increasing concentrations of DCMU, which rapidly and significantly suppressed PSII activity by blocking the transfer of electrons from QA to QB in the PSII reaction center. Furthermore, absence of NDH-1 resulted in the PSI limitation at the functionality of PSI itself but not its donor-side and acceptor-side under conditions of multiple stresses. This was supported by the result of a significant destabilization of the PSI complex in the absence of NDH-1 but the presence of multiple stresses. Based on the above results, we propose that NDH-1 is important for PSI function of Synechocystis sp. strain PCC 6803 mainly via maintaining stabilization of PSI under conditions of environmental stresses.
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影响因子：
4.9
作者：
Misumi M;Katoh H;Tomo T;Sonoike K
通讯作者：
Sonoike K
影响因子：
4.8
作者：
Battchikova, Natalia;Wei, Lanzhen;Ma, Weimin
通讯作者：
Ma, Weimin
NdhV 是集胞藻 (Synechocystis sp.) 中循环电子传递所必需的 NADPH 脱氢酶亚基。
影响因子：
7.4
作者：
Gao, Fudan;Zhao, Jiaohong;Ma, Weimin
通讯作者：
Ma, Weimin
影响因子：
7.4
作者：
McGinn, PJ;Price, GD;Badger, MR
通讯作者：
Badger, MR
蓝藻集胞藻 6803 中活性 NADPH 脱氢酶复合物介导的电子传递对热应激的响应
DOI：
10.1007/s11427-008-0139-0
发表时间：
2008-12-01
期刊：
SCIENCE IN CHINA SERIES C-LIFE SCIENCES
影响因子：
--
作者：
Ma WeiMin;Wei LanZhen;Wang QuanXi
通讯作者：
Wang QuanXi