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

Hiroyuki Komatsu, Junya Yamamoto, Hiromichi Suzuki, Nobuyoshi Nagao, Yuu Hirose, Takashi Ohyama, So Umekage, Yo Kikuchi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

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 ctrAdeficient 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.

Original languageEnglish
Pages (from-to)103-107
Number of pages5
JournalJournal of General and Applied Microbiology
Volume64
Issue number3
DOIs
Publication statusPublished - 2018

Keywords

  • CtrA
  • Extracellular DNA
  • Gene transfer agent
  • Marine phototrophic bacterium
  • Rhodovulum sulfidophilum

ASJC Scopus subject areas

  • Microbiology
  • Applied Microbiology and Biotechnology

Fingerprint

Dive into the research topics of 'Involvement of the response regulator CtrA in the extracellular DNA production of the marine bacterium Rhodovulum sulfidophilum'. Together they form a unique fingerprint.

Cite this