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Epidendrum ilense

National Institutes of Health

Papers overview

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1994
1994
固氮螺菌Yu-62在以谷氨酸为氮源好气液体培养条件下,氨离子使固氮酶迅速失活,Western blotting实验证明这种失活的分了固氮酶铁蛋白-亚基被修饰,测定加NH4^+后细胞内α-ketoglutarate和glutamine的含量。α-ketoglutarate/glutamine比值在加NH4^+后瞬间下降然后上升,而细胞内ATP/ADP的比值没有明显变化,谷氨酸合成酶的抑制剂azser