Anaerobic Regulatory Networks in Bacteria
Petra Tielen, Max Schobert, Elisabeth Härtig and Dieter Jahn
from: Bacterial Regulatory Networks (Edited by: Alain A.M. Filloux). Caister Academic Press, U.K. (2012)
Survival and growth during periods of low oxygen tension are essential for the successful colonization of natural habitats by bacteria. For the coordination of the necessary biochemical adaption processes upon oxygen deprivation bacteria employ a fine tuned interplay of various regulatory proteins and sRNAs. The iron sulfur cluster containing oxygen sensor Fnr and its multiple variants are often found involved in the corresponding regulatory networks throughout the bacterial kingdom. Similarly, the alternative electron acceptor nitrate is usually detected by the two-component system NarXL and its derivatives. In contrast, other systems including the quinone pool responsive two component system ArcBA, the ResDE system or the regulatory sRNAs FnrS and ArcZ are limited to certain bacterial groups. Here we describe the regulatory networks and their components underlying the adaption processes of the model bacteria Escherichia coli, Pseudomonas aeruginosa and Bacillus subtilis to an anaerobic life style read more ...