Survival, stress resistance, and alterations in protein expression in the marine vibrio sp. strain S14 during starvation for different individual nutrients.

摘要: The response of the marine Vibrio sp. strain S14 to starvation for carbon, nitrogen, or phosphorus and simultaneous depletion all these nutrients (multiple-nutrient starvation) was examined with respect survival, stress resistance, quantitative qualitative alterations in protein RNA synthesis, induction stringent control. Of conditions tested, carbon multiple-nutrient both promoted long-term resistance a rapid control, as deduced from kinetics synthesis. Carbon- multiple-nutrient-starved cells were also found become increasingly resistant heat, UV, near-UV, CdCl2 stress. Nitrogen- phosphorus-starved demonstrated poor ability survive presence did not develop marked stresses examined. stimulons consisted about 20 proteins each, while elicited an increased synthesis 42 polypeptides. Nine common be induced regardless condition used tentatively termed general proteins. It that total number predictable sum different individual stimulons. Multiple-nutrient 14 which detected at levels expression conditions. Furthermore, four out five starvation-specific polypeptides during phosphorus, carbon. results are discussed light physiological previously described starved simultaneously. Images