Requirement for RNA Helicase CsdA for Growth of Yersinia pseudotuberculosis IP32953 at Low Temperatures

摘要

The expression of csdA , encoding an RNA helicase, was induced at 3°C in Yersinia pseudotuberculosis . The role of CsdA in Y. pseudotuberculosis under cold conditions was confirmed by impaired growth of insertional csdA mutants at 3°C. The results suggest that CsdA is crucial for Y. pseudotuberculosis survival in the chilled food chain.