Clostridium indolis

Clostridium indolis is a Gram-negative, motile, anaerobic, rod-shaped bacteria that produces terminal spores. Clostridium indolis was originally named for its ability to hydrolyze tryptophan to indole, pyruvate, and ammonia in the classic indole test which is used to distinguish bacterial species. It is commonly found in soil and can be found in human and bird feces. Colonies of Clostridium indolis are found to be non-hemolytic and have an optimal growth temperature of 37 °C, classifying them as mesophiles.