对从巴西里约热内卢分离出的创伤弧菌的一些毒力因子的分析。
Analysis of some virulence factors of Vibrio vulnificus isolated from Rio de Janeiro, Brazil.
作者信息
Rodrigues D P, Ribeiro R V, Hofer E
机构信息
Fundação Oswaldo Cruz, Brasil.
出版信息
Epidemiol Infect. 1992 Jun;108(3):463-7. doi: 10.1017/s0950268800049979.
Abstract
Twenty strains of V. vulnificus isolated from the environment were investigated for characteristics related to their infectivity such as colonial morphology, enzymatic activity and animal assays. The presence of DNase, chitinase, amylase, lecithinase and gelatinase was observed in 100% of the strains, haemolytic activity was absent, and variable results were obtained in elastase, collagenase and chondroitinase. In the animal assays, 70% of the strains were lethal to adult mice, while 45% caused fluid accumulation in suckling mice. Although all strains had opaque colonies, only 3 of the 20 had the three enzymes elastase, collagenase and gelatinase, and only one of these was virulent in animal assays.
摘要
对从环境中分离出的20株创伤弧菌进行了研究，以了解其与感染性相关的特征，如菌落形态、酶活性和动物试验。在100%的菌株中观察到有脱氧核糖核酸酶、几丁质酶、淀粉酶、卵磷脂酶和明胶酶，无溶血活性，在弹性蛋白酶、胶原酶和软骨素酶方面得到的结果不一。在动物试验中，70%的菌株对成年小鼠致死，而45%的菌株导致乳鼠出现积液。尽管所有菌株都有不透明菌落，但20株中只有3株具有弹性蛋白酶、胶原酶和明胶酶这三种酶，其中只有一株在动物试验中具有毒性。
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