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Catabolite repression is a mechanism of selectively utilizing preferred nutrient sources by redirecting the metabolic pathways. Therefore, it prevents non-essential energy expenditure by repressing the genes and proteins involved in the metabolism of other less favored nutrient sources. Catabolite repressor protein (CRP) is a chief mediator of catabolite repression in microorganisms. In this context, we investigated the role of CRP in starvation tolerance, at both cell physiology and molecular level, by comparing the growth, survival, competitive fitness, maintenance rate, and gene and protein expression of wild type (WT) and ∆
Mishra et al. (Wed,) studied this question.