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光合自养细菌嗜硫红假单胞菌中固氮酶的调控

Control of nitrogenase in a photosynthetic autotrophic bacterium, Ectothiorhodospira sp.

作者信息

Bognar A, Desrosiers L, Libman M, Newman E B

出版信息

J Bacteriol. 1982 Nov;152(2):706-13. doi: 10.1128/jb.152.2.706-713.1982.

Abstract

An Ectothiorhodospira species fixed nitrogen when grown as an autotroph in completely inorganic medium by using a variety of electron donors. The organism also used organic carbon sources; however, this required induction of synthesis of various enzymes, whereas the enzymes needed for autotrophic growth were synthesized constitutively. Nitrogenase induction and function were inhibited by ammonium chloride. Nitrogenase activity was dependent on light and inhibited by oxygen.

摘要

一种外硫红螺菌属的细菌在完全无机培养基中作为自养生物生长时,通过使用多种电子供体来固定氮。该生物也利用有机碳源;然而,这需要诱导合成各种酶,而自养生长所需的酶是组成型合成的。氯化铵抑制固氮酶的诱导和功能。固氮酶活性依赖于光且受氧抑制。

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