Question

What causes a bacterial culture to enter the stationary phase

Answer 1

limitation of a specific essential nutrient, accumulation of toxic by-products, presence of stress factors such as changes in pH, temperature, osmolarity, etc.

The stationary phase of bacterial growth happens when the rapid logarithmic grow plateaus off and becomes level. At this point, the number of bacteria being created is equal to the number of bacteria dying, so there is no net change in bacteria numbers. i think that's it. I hope this helps!!:)

Answer 2

A bacterial culture enters the stationary phase when the growth rate of the bacteria slows down and the number of bacteria in the culture stabilizes. This is often due to a depletion of nutrients in the culture medium, such as glucose, which is a key energy source for many bacteria. As the nutrients in the culture medium become depleted, the bacteria are no longer able to grow and divide at the same rate as before, and the population enters the stationary phase. Other factors that can contribute to the stationary phase include the accumulation of toxic waste products, changes in environmental conditions (such as temperature or pH), and the onset of programmed cell death in some bacteria.