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Chinese Journal of Microbiology and Immunology ; (12): 84-87, 2009.
Article Dans Chinois | WPRIM | ID: wpr-381375

Résumé

Objective To evaluate the contribution of gyrA and parE detection in Ureaplasma genotyping.Methods Sixty Ureaplasma isolates were selected with the Mycoplasma IST kit.The gyrA and parE were amplified by PCR.The DNA was sequenced and compared with the corresponding sequences in GenBank.Results The nucleotide sequence of gyrA had 100% identity in serovar 1,3,6,14 and 100%identity in serovar 2,4,5,7~13,too.But the sequence had 91%identity between the two groups.The nucleotide sequence of parE had 98%~99% identity in serovar 1,3,6,14.And it had 100% identity in erovar 2,5,7,8,11 and 100% identity in serovar4,12,13.But it had only 90% identity between the two groups.Ureaplasma parvum(Up),Ureaplasma urealyticum(Uu)and Up+Uu infection were found 68.3%(41/60),21.7%(13/60)and 10%(6/60) of clinical specimens,respectively.In Up isolates,serovar 3 was 48.8%(20/41).Conclusion Ureaplasma can be divided into two genotypes(Up and Uu)by gyrA analysis.And Up can be divided into four subtypes which correspond to serovar 1,3,6,14,respectively.Serovar 3 is the main isolate in our research.

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