Involvement of the response regulator CtrA in the extracellular DNA production of the marine bacterium Rhodovulum sulfidophilum.

Involvement of the response regulator CtrA in the extracellular DNA production of the marine bacterium Rhodovulum sulfidophilum.
J Gen Appl Microbiol. 2018 Mar 12;:
Authors: Komatsu H, Yamamoto J, Suzuki H, Nagao N, Hirose Y, Ohyama T, Umekage S, Kikuchi Y
Abstract
The marine bacterium Rhodovulum sulfidophilum is a nonsulfur phototrophic bacterium, which is known to produce extracellular nucleic acids in soluble form in culture medium. In the present paper, constructing the response regulator ctrA-deficient mutant of R. sulfidophilum, we found that this mutation causes a significant decrease in the extracellular DNA production. However, by the introduction of a plasmid containing the wild type ctrA gene into the mutant, the amount of extracellular DNA produced was recovered. This is the first and clear evidence that the extracellular DNA production is actively controlled by the CtrA in R. sulfidophilum.
PMID: 29526925 [PubMed - as supplied by publisher]

Source: Journal of General and Applied Microbiology - March 13, 2018 Category: Microbiology Tags: J Gen Appl Microbiol Source Type: research