Association of Vibrio cholerae O1 El Tor and O139 Bengal with the copepods Acartia tonsa and Eurytemora affinis
Association of Vibrio cholerae O1 El Tor and O139 Bengal with the copepods Acartia tonsa and Eurytemora affinis
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DOI：
10.1128/aem.01238-07
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发表时间：
2007-12-01
影响因子：
4.4
通讯作者：
Colwell, Rita R.
中科院分区：
文献类型：
--
作者：
Rawlings, Tonya K.;Ruiz, Gregory M.;Colwell, Rita R.
霍乱弧菌与浮游动物的关系被认为是人类流行性霍乱传播的一个重要因素，浮游动物表面定殖的能力可能在水生环境中两种不同血清群（霍乱弧菌O1 El Tor和O139）的时间变化和优势中发挥作用。迄今为止，对特定血清群和浮游生物物种之间的相互作用仍然知之甚少。进行了实验室微观实验，定量比较两种桡足类，Acartia tonsa和Eurytemora affinis，由每个流行血清组的殖民。霍乱弧菌O1在各桡足类定殖成虫中的丰度始终高于霍乱弧菌O139，并且霍乱弧菌O1在多个生活阶段中的丰度也高于霍乱弧菌O139。近亲在孟加拉国农村地区，霍乱弧菌O1在霍乱流行中的普遍优势可能是显著的，因为那里的供水直接来自环境。
The association of Vibrio cholerae with zooplankton has been suggested as an important factor in transmission of human epidemic cholera, and the ability to colonize zooplankton surfaces may play a role in the temporal variation and predominance of the two different serogroups (V. cholerae O1 El Tor and O139) in the aquatic environment. To date, interactions between specific serogroups and species of plankton remain poorly understood. Laboratory microcosm experiments were carried out to compare quantitatively the colonization of two copepod species, Acartia tonsa and Eurytemora affinis, by each of the epidemic serogroups. V. cholerae O1 consistently achieved higher abundances than V. cholerae O139 in colonizing adults of each copepod species as well as the multiple life stages of E. affinis. This difference in colonization may be significant in the general predominance of V. cholerae O1 in cholera epidemics in rural Bangladesh where water supplies are taken directly from the environment.