Protozoan Acanthamoeba polyphaga as a potential reservoir for Campylobacter jejuni

被引:104
作者
Axelsson-Olsson, D
Waldenström, J
Broman, T
Olsen, B
Holmberg, M [1 ]
机构
[1] Univ Uppsala Hosp, Dept Med Sci, Infect Dis Sect, S-75185 Uppsala, Sweden
[2] Univ Kalmar, Kalmar Cty Hosp, Dept Clin Microbiol, Kalmar, Sweden
[3] Univ Kalmar, Dept Biol & Environm Sci, Kalmar, Sweden
[4] Lund Univ, Dept Anim Ecol, S-22362 Lund, Sweden
[5] Umea Univ, Swedish Def Res Agcy, FOI, Umea, Sweden
[6] Umea Univ, Dept Infect Dis, Umea, Sweden
关键词
D O I
10.1128/AEM.71.2.987-992.2005
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
We showed by a laboratory experiment that four different Campylobacter jejuni strains are able to infect the protozoan Acanthamoeba polyphaga. C. jejuni cells survived for longer periods when cocultured with amoebae than when grown in culture alone. The infecting C. jejuni cells aggregated in amoebic vacuoles, in which they were seen to be actively moving. Furthermore, a resuscitation of bacterial cultures that were previously negative in culturability tests was observed after reinoculation into fresh amoeba cultures. After spontaneous rupture of the amoebae, C. jejuni could be detected by microscopy and culturability tests. Our results indicate that amoebae may serve as a nonvertebrate reservoir for C. jejuni in the environment.
引用
收藏
页码:987 / 992
页数:6
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