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Title: Reversibility of oxygen induced inactivation of nitrogenase in some enterobacteria
Authors: Kannan, V
Raju, P N
Issue Date: Feb-2002
Publisher: NISCAIR-CSIR, India
Abstract: Aerobic and microaerobic diazotrophs possess numerous oxygen restriction strategies to protect nitrogenase from inactivation by oxygen without interfering with energy generation through oxidative phosphorylation. Protection by conformational change in nitrogenase was first detected and described in Azotobacter. This strategy once considerd unique for Azotobacter has been shown in this study to occur in Citrobacter freundii (Braak) Werkman and Gillen and Klebsiella pneumonia subspecies rhinoscleromatis (Trevisan) Migula also. However, in these enteric bacteria the entire enzyme is not protected probably due to the absence of any respiratory protection similar to that found in the aerobe, Azotobacter.
Page(s): 227-229
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Appears in Collections:IJEB Vol.40(02) [February 2002]

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