African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5233

Short Communication

Lack of seqA and dam genes induces the formation of cyclic fatty acids in Salmonella typhimurium at the entry of stationary phase

Chatti Abdelwaheb1*, Maalej Lobna1, Ben Ghorbel Kloula Selma1 and Landoulsi Ahmed2
1Laboratoire de Traitement des Eaux Usées, Centre des Recherches et des Technologies des Eaux (CERTE), Technopole Borj Cédria, BP 273- Soliman 8020. 2Unité de Biochimie des Lipides et interaction des macromolécules en Biologie, 03/UR/0902. Laboratoire de Biochimie et Biologie Moléculaire, Faculté des Sciences de Bizerte, Zarzouna. ; Université de Carthage
Email: [email protected]

  •  Accepted: 06 February 2013
  •  Published: 05 March 2013

Abstract

Membrane fatty acid composition of dam and/or seqA mutants of Salmonella typhimuriumwas investigated for exponential and stationary phase cells. Our results show that by reaching the stationary phase, the lack of dam and seqA genes enhanced the production of cyclic fatty acids (CFA), whereas the wild-type cells produced CFAs normally. Data from this study suggest that the membrane fatty acid composition of these mutants is phase-dependent.

 

Key words: Fatty acids, SalmonellaseqAdam, growth phase