Why do bacteria produce spores?

A variety of different microorganisms form "spores" or "cysts," but the endospores of low G+C gram-positive bacteria are by far the most resistant to harsh conditions. Some classes of bacteria can turn into exospores, also known as microbial cysts, instead of endospores. read more

Wound contaminated with soils can be infected with spores and cause diseases such as tetanus, gas gangrene. Spores do not exhibit measurable metabolic activity. Antibiotics are ineffective against spores. Spores formed only when nutrients are insufficient. Spores are not often found at the site of infection because nutrients are not limiting. read more