EVERYDAY SCIENCE

Detailed explanation-1: -Endospores are resistant to the chemical agents, e.g., triphenylmethane dyes, and can even protect the bacterial cells against ultraviolet radiation, extreme pH gradients, drought, and nutrition depletion.

Detailed explanation-2: -It allows the bacterium to produce a dormant and highly resistant cell to preserve the cell’s genetic material in times of extreme stress. Endospores can survive environmental assaults that would normally kill the bacterium.

Detailed explanation-3: -A Combination of Extreme Environmental Conditions Favor the Prevalence of Endospore-Forming Firmicutes. Environmental conditions unsuitable for microbial growth are the rule rather than the exception in most habitats.

Detailed explanation-4: -Spores have thick walls. They can resist high temperatures, humidity, and other environmental conditions. The bacteria Clostridia form spores. These spores create the bacteria that cause a rare condition called gas gangrene and a type of colitis that is linked to use of antibiotics.

Detailed explanation-5: -Nevertheless, endospores are formed almost exclusively by low G+C Gram-positive bacteria, including the genera Bacillus, Clostridium, Thermoactinomyces, Sporolactobacillus, and Sporosarcina.