Farmer J J, Fanning G R, Davis B R, O'Hara C M, Riddle C, Hickman-Brenner F W, Asbury M A, Lowery V A, Brenner D J
J Clin Microbiol. 1985 Jan;21(1):77-81. doi: 10.1128/jcm.21.1.77-81.1985.
Escherichia fergusonii (formerly known as Enteric Group 10) and Enterobacter taylorae (formerly known as Enteric Group 19) are proposed as new species in the family Enterobacteriaceae. By DNA hybridization (32P, 60 degrees C, hydroxyapatite), strains of E. fergusonii were 90 to 97% related to the type strain (holotype) ATCC 35469. They were most closely related to Escherichia coli and more distantly related to species in other genera. E. fergusonii strains are positive for indole production, methyl red, lysine decarboxylase, ornithine decarboxylase, and motility. They ferment D-glucose with gas production and also ferment adonitol, L-arabinose, L-rhamnose, maltose, D-xylose, trehalose, cellobiose, and D-arabitol. They are negative for Voges-Proskauer, citrate utilization (17% positive), urea hydrolysis, phenylalanine deamination, arginine dihydrolase, growth in KCN, and fermentation of lactose, sucrose, myo-inositol, D-sorbitol, raffinose, and alpha-methyl-D-glucoside. By DNA hybridization (32P, 60 degrees C, hydroxyapatite), strains of E. taylorae were 84 to 95% related to the type strain (holotype) ATCC 35317. Their nearest relative was E. cloacae, to which they were 61% related. Other named species were more distantly related. Strains of E. taylorae are positive for Voges-Proskauer, citrate utilization, arginine dihydrolase, ornithine decarboxylase, motility, growth in KCN medium, and malonate utilization. They ferment D-glucose with gas production and also ferment D-mannitol, L-arabinose, L-rhamnose, maltose, D-xylose, trehalose, and cellobiose. They are negative for indole production, methyl red, H2S production on triple sugar-iron agar, urea hydrolysis, phenylalanine deamination, lysine decarboxylase, gelatin hydrolysis, and fermentation of adonitol, i-inositol, D-sorbitol, and raffinose. Both new species occur in human clinical specimens. Two strains of E. fergusonii were isolated from blood. Five stains of E. taylorae were isolated from blood, and one was from spinal fluid. These blood and spinal fluid isolates suggest possible clinical significance, but this point requires further study.
费氏埃希菌（以前称为肠道菌群10）和泰勒肠杆菌（以前称为肠道菌群19）被提议作为肠杆菌科中的新物种。通过DNA杂交（32P，60℃，羟基磷灰石），费氏埃希菌菌株与模式菌株（全模式）ATCC 35469的相关性为90%至97%。它们与大肠杆菌关系最为密切，与其他属的物种关系较远。费氏埃希菌菌株吲哚产生、甲基红、赖氨酸脱羧酶、鸟氨酸脱羧酶和动力试验均为阳性。它们发酵D-葡萄糖产气，还发酵阿东醇、L-阿拉伯糖、L-鼠李糖、麦芽糖、D-木糖、海藻糖、纤维二糖和D-阿拉伯糖醇。它们Voges-Proskauer试验、柠檬酸盐利用（17%阳性）、尿素水解、苯丙氨酸脱氨、精氨酸双水解酶、在KCN中生长以及乳糖、蔗糖、肌醇、D-山梨醇、棉子糖和α-甲基-D-葡萄糖苷发酵试验均为阴性。通过DNA杂交（32P，60℃，羟基磷灰石），泰勒肠杆菌菌株与模式菌株（全模式）ATCC 35317的相关性为84%至95%。它们最接近的亲缘种是阴沟肠杆菌，与之相关性为61%。其他已命名的物种关系较远。泰勒肠杆菌菌株Voges-Proskauer试验、柠檬酸盐利用、精氨酸双水解酶、鸟氨酸脱羧酶、动力试验、在KCN培养基中生长以及丙二酸盐利用试验均为阳性。它们发酵D-葡萄糖产气，还发酵D-甘露醇、L-阿拉伯糖、L-鼠李糖、麦芽糖、D-木糖、海藻糖和纤维二糖。它们吲哚产生、甲基红、在三糖铁琼脂上产生H2S、尿素水解、苯丙氨酸脱氨、赖氨酸脱羧酶、明胶水解以及阿东醇、肌醇、D-山梨醇和棉子糖发酵试验均为阴性。这两个新物种均存在于人类临床标本中。从血液中分离出2株费氏埃希菌。从血液中分离出5株泰勒肠杆菌，1株从脑脊液中分离出。这些血液和脑脊液分离株提示可能具有临床意义，但这一点需要进一步研究。
