Nitrite activates a constitutive component of nitrate reductase in barley plants under conditions in which the component is found free and not incorporated into the complete enzyme. The constitutive component is found free both in plants without nitrate and when nitrate reductase is inactivated with cyanide. The inhibition of nitrate reductase by cyanide seemed to initiate the loosening or separation of the component parts of the enzyme.
Qiang He, Zhili He, Dominique C. Joyner, Marcin P. Joachimiak, Morgan N. Price, Zamin K. Yang, Huei-Che Yen, Christopher L. Hemme, Wenqiong Chen, Matthew M Fields, David A. Stahl, Jay D Keasling, Martin Keller, Adam P. Arkin, Terry C. Hazen, Judy D. Wall, Jizhong Zhou
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