Relationship between respiratory enzymes and survival of Escherichia coli under starvation stress in lake water.

摘要: Survival, electron transport system (ETS) activity and the of NADH succinate dehydrogenase Escherichia coli ML30 were studied under starvation stress at different temperatures in a filtered-autoclaved lake water microcosm. ETS E. declined rapidly 30°C but more slowly 4° 15°C over 20 d period. The decrease only started after 6 incubation 4°C 15°C. Viability coli, as determined by plate counts, faster 37°C than other remained highest water. There was also significant cell size reduction not 4°C. up to 16 increased addition nutrient broth suggesting that cells still able respond nutrients, even prolonged starvation. response broth, however, with length both 13 loss fastest compared lower 4°C, proportion lost