What Triggers Sporulation in Bacteria?

Interestingly, there are only two determining factors that trigger sporulation: nutrient starvation and cell density. These two triggers lead to activation of the molecular master regulator of sporulation Spo0A by phosphorylation.

What triggers sporulation?

Endospore formation is usually triggered by a lack of nutrients, and usually occurs in gram-positive bacteria. In endospore formation, the bacterium divides within its cell wall, and one side then engulfs the other. Endospores enable bacteria to lie dormant for extended periods, even centuries.

Which of the following is the reason for sporulation in bacteria?

The network that controls sporulation in Bacillus subtilis senses the slowdown of cellular growth during starvation. ... During starvation, when the growth rate of a cell slows down, the concentration of a key protein - Spo0A - increases, and the bacteria are likelier to form spores.