Chatterjee Indranil, Herrmann Mathias, Proctor Richard A, Peters Georg, Kahl Barbara C
Institute of Medical Microbiology and Hygiene, University of Saarland, Kirrberger Str., Building 43, Homburg/Saar 66421, Germany.
J Bacteriol. 2007 Apr;189(7):2936-40. doi: 10.1128/JB.01444-06. Epub 2007 Jan 26.
The mechanisms underlying the persistence of the Staphylococcus aureus small-colony variant (SCV) are not fully elucidated. In this study, clinical thymidine-dependent SCVs displayed altered expression of citB, clpC, and arcA genes, reduced acetate catabolization, and enhanced survival. These results implicate the importance of changes in tricarboxylic acid cycle and acetic acid metabolism in SCV survival and persistence.
金黄色葡萄球菌小菌落变异株(SCV)持续存在的潜在机制尚未完全阐明。在本研究中,临床胸腺嘧啶核苷依赖性SCV显示citB、clpC和arcA基因表达改变,乙酸分解代谢减少,存活率提高。这些结果表明三羧酸循环和乙酸代谢变化在SCV存活和持续存在中的重要性。