Identification of a Satellite Double-Stranded RNA in the Parasitic Protozoan Trichomonas vaginalis Infected with T. vaginalis Virus T1
نویسندگان
چکیده
منابع مشابه
Double stranded RNA virus in South African Trichomonas vaginalis isolates.
AIMS To screen Trichomonas vaginalis isolates from South Africa for the presence of a small double stranded RNA virus designated T vaginalis virus (TVV). METHODS TVV was detected by simultaneous extraction of DNA and RNA, and its presence confirmed by electron microscopy and nuclease digestions. RESULTS TVV was detected in 59 of 72 (81.9%) isolates. CONCLUSIONS These results indicate a po...
متن کاملTrichomonas vaginalis phenotypic variation occurs only among trichomonads infected with the double-stranded RNA virus
Trichomonas vaginalis isolates were examined for the presence of viral double-stranded RNA (dsRNA) and the property of phenotypic variation. Only the heterogeneous isolates composed of mAb-reactive and -nonreactive organisms, as determined by indirect immunofluorescence and flow cytofluorometry, and capable of phenotypic variation possessed the dsRNA. Both the positive and negative phenotype su...
متن کاملIron modulates phenotypic variation and phosphorylation of P270 in double-stranded RNA virus-infected Trichomonas vaginalis.
Trichomonas vaginalis infected with a double-stranded RNA virus undergoes phenotypic variation on the basis of surface versus cytoplasmic expression of the immunogenic protein P270. Examination of batch cultures by flow cytofluorometry with monoclonal antibody (MAb) to P270 yields both fluorescent and nonfluorescent trichomonads. Greater numbers and intensity of fluorescent organisms with surfa...
متن کاملdouble-stranded rna viral infection in tehran trichomonas vaginalis isolates.
background : trichomonas vaginalis is a pathogenic protozoon and may be contaminated with dsrna virus called trichomonas vaginalis virus (tvv). the viral infection is an important factor for its patho-genesis and sensitivity to metronidazole. the presence of tvv is associated with qualitative and quantitative expression of cysteine proteinases and surface immunogenic; p270. the purpose of this ...
متن کاملDouble-Stranded RNA Viral Infection in Tehran Trichomonas vaginalis Isolates
BACKGROUND Trichomonas vaginalis is a pathogenic protozoon and may be contaminated with dsRNA virus called Trichomonas vaginalis virus (TVV). The viral infection is an important factor for its pathogenesis and sensitivity to metronidazole. The presence of TVV is associated with qualitative and quantitative expression of cysteine proteinases and surface immunogenic; P270. The purpose of this stu...
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ژورنال
عنوان ژورنال: Virology
سال: 1995
ISSN: 0042-6822
DOI: 10.1006/viro.1995.1142