You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Endotoxin of which gram negative bacteria does not cause pathogenesis of natural disease? and explain in detail?
Culture
V cholerae produces convex, smooth, round colonies that are opaque and granular in transmitted light. V cholera and most other vibrios grow well at 37°C on many kinds of media, including defined media containing mineral salts and asparagines mineral salts and asparagines as sources of carbon and nitrogen. V cholerae grows well on thiosulfate-citrate-bile-sucrose (TCBS) agar, on which it produces yellow colonies that are readily visible against the dark-green background of the agar.