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首页> 外文期刊>Applied Microbiology >Ecology of Vibrio parahaemolyticus and Vibrio vulnificus in the Coastal and Estuarine Waters of Louisiana, Maryland, Mississippi, and Washington (United States)
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Ecology of Vibrio parahaemolyticus and Vibrio vulnificus in the Coastal and Estuarine Waters of Louisiana, Maryland, Mississippi, and Washington (United States)

机译：路易斯安那州，马里兰州，密西西比州和华盛顿州（美国）沿海和河口水域的副溶血性弧菌和创伤弧菌的生态

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Vibrio parahaemolyticus and Vibrio vulnificus , which are native to estuaries globally, are agents of seafood-borne or wound infections, both potentially fatal. Like all vibrios autochthonous to coastal regions, their abundance varies with changes in environmental parameters. Sea surface temperature (SST), sea surface height (SSH), and chlorophyll have been shown to be predictors of zooplankton and thus factors linked to vibrio populations. The contribution of salinity, conductivity, turbidity, and dissolved organic carbon to the incidence and distribution of Vibrio spp. has also been reported. Here, a multicoastal, 21-month study was conducted to determine relationships between environmental parameters and V. parahaemolyticus and V. vulnificus populations in water, oysters, and sediment in three coastal areas of the United States. Because ecologically unique sites were included in the study, it was possible to analyze individual parameters over wide ranges. Molecular methods were used to detect genes for thermolabile hemolysin ( tlh ), thermostable direct hemolysin ( tdh ), and tdh -related hemolysin ( trh ) as indicators of V. parahaemolyticus and the hemolysin gene vvhA for V. vulnificus . SST and suspended particulate matter were found to be strong predictors of total and potentially pathogenic V. parahaemolyticus and V. vulnificus . Other predictors included chlorophyll a , salinity, and dissolved organic carbon. For the ecologically unique sites included in the study, SST was confirmed as an effective predictor of annual variation in vibrio abundance, with other parameters explaining a portion of the variation not attributable to SST.
机译：全球河口原生的副溶血弧菌和创伤弧菌是海鲜传播或伤口感染的诱因，两者均可能致命。像所有沿海地区的弧菌一样，它们的丰度也随环境参数的变化而变化。海面温度（SST），海面高度（SSH）和叶绿素已被证明是浮游动物的预测因子，因此是与弧菌种群有关的因素。盐度，电导率，浊度和溶解的有机碳对弧菌的发生和分布的贡献。也有报道。在这里，进行了一项为期21个月的多海岸研究，以确定环境参数与美国三个沿海地区水，牡蛎和沉积物中副溶血弧菌和创伤弧菌的种群之间的关系。由于研究中包括独特的生态站点，因此有可能在较宽的范围内分析各个参数。分子方法被用来检测不耐热溶血素（tlh），热稳定直接溶血素（tdh）和与tdh相关的溶血素（trh）的基因，作为副溶血性弧菌和V. vulhificus的溶血素基因vvhA的指标。发现SST和悬浮颗粒物是总体和潜在致病性副溶血弧菌和创伤弧菌的强烈预测因子。其他预测因子包括叶绿素a，盐度和溶解的有机碳。对于研究中包括的独特生态地点，SST被确认为弧菌丰度年变化的有效预测指标，其他参数解释了部分变化不归因于SST。

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