CLASSIFICATION AND DISTRIBUTION OF LARGE INTESTINAL BACTERIA IN NONHIBERNATING AND HIBERNATING LEOPARD FROGS (RANA-PIPIENS)
CLASSIFICATION AND DISTRIBUTION OF LARGE INTESTINAL BACTERIA IN NONHIBERNATING AND HIBERNATING LEOPARD FROGS (RANA-PIPIENS)
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DOI：
10.1128/aem.54.9.2305-2310.1988
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发表时间：
1988-09-01
影响因子：
4.4
通讯作者：
NACE, GW
中科院分区：
文献类型：
--
作者：
BANAS, JA;LOESCHE, WJ;NACE, GW
本文对豹蛙（Rana pipiens）的大肠植物群进行了研究，以确定该动物的非冬眠状态和冬眠状态之间是否存在差异，并确定潜在蛙病原体的相对浓度和比例。冬眠者每毫克肠道细菌的对数下降平均为1，兼性细菌和嗜冷菌的比例显着高于nonhibernators。优势厌氧菌为革兰氏阳性梭菌属和革兰氏阴性拟杆菌属及梭杆菌属。非冬眠动物的优势兼性细菌为肠杆菌，而冬眠动物的优势兼性细菌为假单胞菌。许多种假单胞菌对青蛙具有致病性，因此冬眠动物的肠道植物群可能是潜在的传染病源。
The large intestinal flora of the leopard frog, Rana pipiens, was examined to determine whether differences existed between the nonhibernating and hibernating states of the animal and to determine the relative concentrations and proportions of potential frog pathogens. Hibernators had a logarithmic decrease of bacteria per milligram of intestine averaging one, and significantly greater proportions of facultative bacteria and psychrophiles relative to nonhibernators. The predominant anaerobic bacteria were gram-positive Clostridium species and gram-negative Bacteroides and Fusobacterium species. The predominant facultative bacteria were enterobacteria in nonhibernators but Pseudomonas species in hibernators. Many species of Pseudomonas are pathogenic for frogs, and thus the intestinal flora in hibernators may be a potential source of infectious disease.