An rpoE-like locus controls outer membrane protein synthesis and growth at cold temperatures and high pressures in the deep-sea bacterium Photobacterium sp. strain SS9.

Many deep-sea bacteria have evolved specialized adaptations for life at cold temperatures and high pressures. A locus required for both psychro- and baro-adaptation in the psychrophilic, moderate barophile, Photobacterium species strain SS9 was identified among SS9 transposon mutants. DNA sequence analysis of this locus identified four complete open reading… CONTINUE READING