Abstract
We identified the recA gene of the moderately thermophilic bacterium Streptococcus thermophilus and investigated the role of its product in the adaptation to heat shock and nutrient starvation. Expression of recA was required for optimal viability and normal cell morphology upon induction of both stresses. Normal induction of GroEL and ClpL in a recA knock-out mutant suggests that the RecA role in heat shock and nutrient starvation response of S. thermophilus is independent from the intracellular accumulation of these stress-specific chaperones.
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