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Amr El-Sayed,Abdulwahed Ahmed Hassan,Saleh Natour,Amir Abdulmawjood,Michael Bülte,Wilfried Wolter,Michael Zschöck 한국미생물학회 2009 The journal of microbiology Vol.47 No.3
The aim of the present study is to evaluate the efficiency of three methods to determine the molecular diversity of 34 Mycobacterium avium subsp. paratuberculosis (MAP) strains isolated from 17 cattle herds. The applied methods included the analysis of sequence polymorphism of the mononucleotide (G1 and G2) and trinucleotide sequences (GGT) of the Short Sequence Repeats (SSR) and the determination of size polymorphism of 9 different Mycobacterial Interspersed Repetitive Units (MIRU) and 6 Variable Number Tandem Repeats (VNTR). Sequence analysis of SSR of 34 isolates showed 4, 6, and 2 alleles of G1, G2, and GGT repeats, respectively. The amplification of the investigated 9 MIRU units revealed only two discriminatory genotyping systems (MIRU2 and MIRU3). Out of 6 VNTR PCR differentiation methods, only one method could be recommended for genotyping purposes. The profile 7g-12g-4ggt-II-b-2 of the combination systems G1-G2-GGT-MIRU2-MIRU3-VNTR1658 dominates among the examined isolates and was detected in 14.7% of the isolates. The use of certain repetitive loci of SSR, MIRU, and VNTR techniques in this study showed greater potential than others for the characterization of MAP isolates. The recommended loci can be used for the epidemiological tracing of MAP field strains and to determine the relationships between isolates in different herds.
Christoph Lammler,Siti Isrina Oktavia Salasia,I Wayan Teguh Wibawan,Fachriyan H.Pasaribu,Amir Abdulmawjood 대한수의학회 2004 Journal of Veterinary Science Vol.5 No.3
In the present study 41 mucoid growing Streptococcus equi subsp. zooepidemicus strains (37 strains isolated from healthy two from diseased pigs, two strains isolated from healthy monkeys) appeared to be phenotypically and genotypically identical to mucoid growing S. equi subsp. zooepidemicus strains isolated from a previously described outbreak among the pig and monkey population on the island of Bali, Indonesia. These findings indicate that the mucoid growing S. equi subsp. zooepidemicus clone was still present in the pig and monkey population in Indonesia.