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  • Title: The role of c-di-GMP signaling in an Aeromonas veronii biovar sobria strain.
    Author: Rahman M, Simm R, Kader A, Basseres E, Römling U, Möllby R.
    Journal: FEMS Microbiol Lett; 2007 Aug; 273(2):172-9. PubMed ID: 17573931.
    Abstract:
    Aeromonas is a ubiquitous gram-negative bacterium that persists in the environment. It is shown that all isolates of persistent Aeromonas clones show strong biofilm formation ability. C-di-GMP regulates biofilm formation in many bacteria. To investigate the impact of c-di-GMP signaling, we introduced heterologous GGDEF and EAL domain proteins from Salmonella Typhimurium to an Aeromonas veronii biovar sobria strain. Overexpression of the GGDEF domain protein AdrA increased c-di-GMP concentration and biofilm formation and reduced motility. Production of the quorum-sensing signaling molecule C4-homoserine lactone and adhesion to aquatic plant duckweed and amoeba surfaces were enhanced. On the other hand, overexpression of the EAL domain protein YhjH decreased biofilm formation and increased motility.
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