ArticleCurrent microbiology2025
Phenotypic Characterization of Null Mutants of ΔcbpA and ΔcbpB in S. enterica Serovar Typhimurium.
Article in Current microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The phenotypic characteristics of the ΔcbpA and ΔcbpB mutants of Salmonella enterica serovar Typhimurium were comprehensively analyzed to elucidate the roles of these nucleoid-associated proteins in metabolism and stress responses. Both ΔcbpA and ΔcbpB mutants exhibited enhanced growth on carbon sources such as ribose, mannose, fructose, glycerol, galactose and sucrose compared to the wild-type strain. Conversely, the wild-type strain demonstrated superior growth on xylose. Notably, the ΔcbpB mutant experienced a prolonged lag phase of ~ 20 h when cultured in M9 medium supplemented with maltose. In M9 medium where alanine or arginine served as the sole nitrogen source, both mutants outperformed the wild-type strain in growth, indicating potential alterations in nitrogen metabolism pathways. The ΔcbpA and ΔcbpB mutants were non-motile and exhibited reduced cell sizes compared to the wild-type. Specifically, the ΔcbpA mutant was approximately 0.8 times smaller than the size of the wild-type, while the ΔcbpB mutant was about 1.3 times smaller. The D
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