Deletion of valR, a homolog of Vibrio harveyiś luxR generates an intermediate colony phenotype between opaque/rugose and translucent/smooth in Vibrio alginolyticus.

Abstract excerpt

A previous study has shown that Vibrio alginolyticus ZJ-51 undergoes colony phase variation between opaque/rugose (Op) and translucent/smooth (Tr). The AI-2 quorum-sensing master regulator ValR, a homolog to V. harveyi LuxR, was suggested to be involved in the transition. To investigate the role of ValR in the variation and in biofilm formation, an in-frame deletion of valR in both Op and Tr backgrounds was...

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