Entamoeba struthionis n.sp (Sarcomastigophora: Endamoebidae) from ostriches (Struthio camelus)

被引:22
作者
Gordo, FP
Díaz, RAM
Herrera, S
机构
[1] Univ Complutense Madrid, Fac Farm, Dept Parasitol, E-28040 Madrid, Spain
[2] Univ Autonoma Madrid, Fac Med, Dept Med Prevent & Salud Publ Parasitol, E-28029 Madrid, Spain
[3] Inst Salud Carlos III, Crta Majadahonda Pozuelo, Ctr Nacl Microbiol, Madrid 28220, Spain
关键词
Entamoeba struthionis n.sp; 16S-like rRNA gene sequence; Ostrich; Struthio camelus;
D O I
10.1016/j.vetpar.2003.10.022
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
In the present work we identify the species of Entamoeba from ostriches (Struthio camelus). The complete sequence of the small subunit ribosomal RNA gene from this organism has been compared with those published for other species of the genus and clear differences have been found. These results confirm previous data which showed differences on parasite morphology and class of host with the other Entamoeba species. Taking all these data together, it can be concluded that the organism from ostriches is a new species whose proposed name is Entamoeba struthionis n.sp. This species probably infects rheas (Rhea americana), but genetic analysis of isolates from this host should be performed to confirm morphological data. Also, comparison of gene sequences with data from other authors on cysts recovered from human stool samples showed the possibility that this amoeba may affect humans. Further studies are needed to determine the risk of transmission of this new species to humans. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:327 / 335
页数:9
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