A pathogenic bacterium(HX081027)was isolated from the liver and lung of the diseased Mauremys mutica Cantor,and the bacterium was proved to be the pathogen of the disease through artificial infection.Its morphological,physiological and biochemical characteristics were studied,and they completely matched to all of the reference Morganella morganii(M.morganii)strain which has been reported.The bacteria are gram negative,rods,non-capsule and spore;Glucose-positive,catalase-positive,urease-positive,phenylalanin...