Reversibility of oxygen induced inactivation of nitrogenase in some enterobacteria.

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 Citrobacterfreundii (Braak) Werkman and Gillen and Klebsiella pneumoniae 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.

journal_name

Indian J Exp Biol

authors

Kannan V,Raju PN

keywords:

subject

Has Abstract

pub_date

2002-02-01 00:00:00

pages

227-9

issue

2

eissn

0019-5189

issn

0975-1009

journal_volume

40

pub_type

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