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大肠杆菌硫化氢阳性变体的生化及血清学特性

Biochemical and serological characterization of hydrogen sulfide-positive variants of Escherichia coli.

作者信息

Darland G, Davis B R

出版信息

Appl Microbiol. 1974 Jan;27(1):54-8. doi: 10.1128/am.27.1.54-58.1974.

Abstract

Over 200 H(2)S-positive, gram-negative rods have been characterized by standard biochemical and serological techniques. The results indicate that the isolates are H(2)S-positive variants of Escherichia coli. Comparison of the variants with biochemically typical E. coli suggests that they represent a rather limited subgroup within the species. The H(2)S-positive strains were more resistant to antibiotics than the typical strains; 54% of the H(2)S-positive isolates were resistant to three or more antibiotics compared with only 25% of the typical strains. Similar differences were also seen in the distribution of O and H antigens and in the results of certain biochemical tests.

摘要

通过标准生化和血清学技术已鉴定出200多株产硫化氢的革兰氏阴性杆菌。结果表明,这些分离株是大肠杆菌的产硫化氢变异株。将这些变异株与生化特性典型的大肠杆菌进行比较表明,它们代表了该物种内一个相当有限的亚群。产硫化氢的菌株比典型菌株对抗生素更具抗性;54%的产硫化氢分离株对三种或更多种抗生素耐药,而典型菌株中只有25%耐药。在O抗原和H抗原的分布以及某些生化试验结果中也观察到类似差异。

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