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首页> 外文期刊>Journal of Clinical Microbiology >Further studies on biochemical characteristics and serologic properties of the genus Aeromonas.
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Further studies on biochemical characteristics and serologic properties of the genus Aeromonas.

机译：进一步研究气单胞菌属的生化特性和血清学特性。

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We characterized a collection of 268 Aeromonas isolates from diverse sources (clinical, animal, and environmental sources) for their species and serogroup designations. Overall, 97% of these strains could be identified to the genomospecies level by using an expanded battery of biochemical tests. Members of the Aeromonas hydrophila complex (A. hydrophila, HG2, and A. salmonicida), a group that has previously been difficult to separate biochemically, could easily be distinguished from one another by using a number of recently described phenotypic properties which included utilization of DL-lactate and urocanic acid. Differences in species distributions on the basis of the source of isolation were noted. Serogroup analysis of these 268 isolates plus a number of reference cultures indicated that (i) each genomospecies is serologically heterogeneous and individual serogroups can be found in more than one species, (ii) most type or reference strains for each hybridization group are not serologically representative of the genomospecies at large, (iii) serogroups O:11, O:34, and O:16 predominate clinically (48%), supporting previous studies indicating their importance in human infections, and (iv) most A. trota strains do not express the O139 antigen of Vibrio cholerae. The collective results suggest that both species and serogroup designations are important factors in establishing which isolates can cause human infections when they are acquired from nonclinical sources (foods, animals, and the environment).
机译：我们对来自各种来源（临床，动物和环境来源）的268种气单胞菌分离物的种类和血清群名称进行了表征。总体而言，通过使用扩展的一系列生化测试，可以将这些菌株中的97％鉴定到基因组水平。嗜水气单胞菌复合体的成员（嗜水气单胞菌，HG2和沙门氏菌），以前很难生化分离，可以通过使用最近描述的许多表型特性（包括利用DL-乳酸和尿烷酸。注意到基于隔离来源的物种分布差异。对这268个分离株的血清群分析以及许多参考培养表明（i）每个基因组在血清学上都是异质的，并且可以在一个以上的物种中发现单独的血清群;（ii）每个杂交组的大多数类型或参考菌株在血清学上都不具有代表性（iii）O：11，O：34和O：16血清群在临床上占主导地位（48％），支持先前的研究表明它们在人类感染中的重要性，并且（iv）大多数曲霉菌株不表达霍乱弧菌的O139抗原。总体结果表明，物种和血清群的名称都是确定哪些分离株是从非临床来源（食物，动物和环境）获得的可能引起人类感染的重要因素。

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