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 Stalactite growth in a ghee broth culture is characteristic of and explain in detail?
Yersinia pestis:The plague bacillus is a sho, plump, ovoid gram-negative bacillus.It is aerobic and facultatively anaerobicIt is not nutritionally exacting and grows on ordinary mediaIf grown in a flask of broth with oil or ghee floating on top, a characteristic growth occurs which hangs down into the broth from the surface, resembling stalactites .Ref: Ananthanarayan; 7th edition; Page no: 324