Increased cell size and shortened peptidoglycan interpeptide bridge of NaCl-stressed Staphylococcus aureus and their reversal by glycine betaine.

AUTOR(ES)

Vijaranakul, U

RESUMO

Staphylococcus aureus cells grown in a defined medium under conditions of high ionic stress (2.5 M NaCl) were significantly larger than cells grown under unstressed conditions, even though the cells grew much more slowly under stressed conditions. Analysis of the structure of peptidoglycan from stressed cells showed a shorter interpeptide bridge than in peptidoglycan from unstressed cells. Glycine betaine inclusion in the high-NaCl medium resulted in cells with sizes and interpeptide bridges similar to those of cells grown under unstressed conditions.

Documentos Relacionados

• Accumulation of organic and inorganic solutes in NaCl-stressed sorghum seedlings from aged and primed seeds
• Supplemental Ca2+ does not improve growth but it affects nutrient uptake in NaCl-stressed cowpea plants
• Characterization of an NaCl-sensitive Staphylococcus aureus mutant and rescue of the NaCl-sensitive phenotype by glycine betaine but not by other compatible solutes.
• Restoration of colony-forming activity in osmotically stressed Escherichia coli by betaine.
• Interaction of pH and NaCl on Enumeration of Heat-Stressed Staphylococcus aureus1