Occurrence of potentially pathogenic vibrios in the marine environment of the Straits of Messina (Italy)

Occurrence of potentially pathogenic vibrios in the marine environment of the Straits of Messina (Italy)
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DOI:
10.1016/j.marpolbul.2005.02.045
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发表时间:
2005-06-01
影响因子:
5.8
通讯作者:
Maugeri, TL
Maugeri, TL
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
Gugliandolo, C;Carbone, M;Maugeri, TL

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弧菌普遍存在于海洋和河口环境中,通常存在于贝类和其他海产品中。它们以自由生活的形式存在于环境中,并与不同的底物联系在一起(坦普林等人,1990年)。表生生物能够在自然环境中生存的时间比自由生活的形式更长,通过附着策略,它们能够适应不利的条件,例如有机物限制(Roszak和Colwell,1987;Carman和Dobbs,1997)。弧菌对浮游桡足类体壁的定植这是一个广为人知的现象,尤其是在与粪便污染和非污染沿海地区的桡足类附着有关的问题上(卡内科和科尔韦尔,1975;Venkateswaran等人,;坦普林等人,1990年;Carli等人,1993年;Maugeri等人,2004年)。与浮游动物相关的霍乱弧菌数量比在周围水柱中发现的数量更多(Huq等人,1983年)。鸡蛋和粪便颗粒的扩散应有助于细菌在水环境中的扩散。从流行病学和生态学的角度来看,人们对潜在致病弧菌的发生非常感兴趣。能够引起人类疾病的弧菌包括霍乱毒素产生菌(引起霍乱流行/大流行)、副溶血性弧菌的耐热直接溶血素产生菌(胃肠炎的主要原因)和创伤弧菌(可引起败血症和严重的伤口感染)。霍乱弧菌菌株已被证明从其环境蓄水池通过水源或海鲜传播给人类。其他非流行弧菌物种,包括
Vibrios are ubiquitous in marine and estuarine environments and are commonly present in or on shellfish and other seafood. They are present in the environment as free-living and associated with different substrata (Tamplin et al., 1990). Epibionts are able to survive in the natural environment longer than free-living forms, and by means of adhesive strategies, they can adapt to adverse conditions, eg organic matter limitation (Roszak and Colwell, 1987; Carman and Dobbs, 1997). The colonisation of planktonic copepod integument by Vibrio spp. is a well-described phenomenon especially in what concerns the attachment to the copepods in faecal polluted and non-polluted coastal zones (Kaneko and Colwell, 1975; Venkateswaran et al., 1989; Tamplin et al., 1990; Carli et al., 1993; Maugeri et al., 2004). Larger numbers of V. cholerae are associated with zooplankton than are found in the surrounding water column (Huq et al., 1983). The dispersion of eggs and faecal pellets should contribute to bacterial diffusion in the aquatic environment.Interest in the occurrence of potentially pathogenic vibrios is high from an epidemiological and ecological point of view. Vibrios able to cause human disease include the cholera toxin-producing strains of V. cholerae, that are responsible for epidemic/pandemic cholera, thermostable direct hemolysin-producing strains of V. parahaemolyticus, a leading cause of gastro-enteritis and V. vulnificus, which can cause sepsis and serious wound infections. The transmission of V. cholerae strains from their environmental reservoir to humans through water sources or seafood has been demonstrated. Other non-epidemic Vibrio species, including