破碎叶绿体对高锝酸盐（TcO(4))的光依赖性还原作用。
Light Dependent Reduction of Pertechnetate (TcO(4)) by Broken Chloroplasts.
机构信息
Rijksinstituut voot Volksgezondheid en Milieuhygiëne, c/o Stichting ITAL Keyenbergseweg 6, 6704 PJ Wageningen, The Netherlands.
出版信息
Plant Physiol. 1986 Aug;81(4):1003-7. doi: 10.1104/pp.81.4.1003.
Arguments are given for a ferredoxin-mediated reduction of TcO(4) (-), preponderantly into extractable Tc(V) complexes, by illuminated, broken chloroplasts. Photosynthetic O(2)- and NADP-reduction competitively inhibit Tc incorporation. As for O(2), the reaction can be stimulated by the auto-oxidizable electron acceptor methyl viologen. Furthermore TcO(4) (-) can function as terminal acceptor in the diaphorase reaction, with NADPH as electron donor.
有证据表明，被光解的叶绿体可通过铁氧还蛋白将 TcO(4) (-)（主要还原为可萃取的 Tc(V) 络合物）。光合 O(2) 和 NADP 的还原会竞争性抑制 Tc 的掺入。与 O(2) 一样，该反应可以被自氧化电子受体甲紫精刺激。此外，TcO(4) (-) 可以作为二氢蝶呤还原酶反应的末端受体，以 NADPH 作为电子供体。
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