미생물학회지 (Korean Journal of Microbiology)

  • 제36권3호
  • /
  • Pages.173-180
  • /
  • 2000
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  • 0440-2413(pISSN)
  • /
  • 2383-9902(eISSN)
한국미생물학회 (The Microbiological Society of Korea)
권호 표지

Aeromonas veronii biogroup sobria와 Aeromonas caviae의 16S-23S rRNA Intergenic Spacer Regions 분석

Analysis of 16S-23S rRNA Intergenic Spacer Regions of Aeromonas veronii biogroup sobria and A. caviae

  • 강동율 (부경대학교 미생물학과 병원 미생물실) ;
  • 이훈구 (부경대학교 미생물학과 병원 미생물실)
  • 발행 : 2000.09.01
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초록

부산의 가물치 양식장으로부터 분리된 A. veronii bv. sobria 와 A. caviae를 대상으 로 16S-23S rRNA Intergenic Spacer Region을 cloning 하여 염기서dufd을 분석하였다. A. veronii bv. sobria 는 4그룹의 band pattern이 형성되었고 A. caviae는 1그룹만이 존재하였 다. A. veronii bv. sobria 의 4그룹에 대한 band 수는 2~4개까지 다양하게 나타났으며. 479~481 bp (ISR-1), 513~524 bp (ISR-2), 537~539 bp (ISR-3) 의 염기서열을 밝혀냈다. A. caviae는 3개의 band가 형성되었고,470~480bp (ISR-1), 521~525bp (ISR-2),568~602 bp (ISR-4)의 염기서열을 가지고 있었다. 그리고 이들에 대한 tRNA를 분석한 결과 ISR-1은 tRNAIle(GAT), tRNAAla(TGC)를 가지고 있고 ISR-2,3,4는 tRNAGlu(TTC)를 가지고 있었 다. A. caviae는 ISR-4의 151~281 bp에서 A. veronii bv. sobria 가 가지고 있지 않은 보존 적인 염기서열을 가지고 있었다. 그 중 A. vaviae의 178~197 bp 염기서열을 primer로 design하여 PCR을 실시한 결과 A. caviae 균주에서만 종특이적으로 생성되는 450 bp 정도 의 밴들르 얻을수 있었다.

The intern1 spacer regions (ISR) between the 16s and 23s $1_RNA$ genes of Aeronzonus iwonii blogroupsobria and A. caviae were investigated by PCR fragment length typing and DNA sequencing. A. iwonii bv.sobria has a speciIic 16s-23s pattern of 2-4 fiagments ranging Goin 479-539 bp, with the exception of thespecies Aeron7onns cmiae, which has 3 fragments ranglog from 470-602 bp. In all of the.4 vei*onii bv. sobr,iaand A, caviae strains examined in this study, the 470-481bp Tragnent, designated TSR-1, invariably contained $tDNA^{uc(GAT)$ and $tDNA^{Ala(TGC)$ in contrast to ISR-2 (513-525 bp). ISR-3 (537-539 bp) and ISR-4 (568-602 bp)containing TEX>$tDNA^{Olu(ITC)$ A stretch of 20 nucleotides (178-197 bp) in the ISR-4 was conserved only wit11mA.caiiue, from which the A. caiiae specific primer, named prAC-F, was designed and used for PCR with aAcaviae coimnon reverse primer A PCR product of 450 bp was apparent alnong I , caiizne strains, but not ii1.4.ijeronii bv. sob~ia strains. The PCR product was oot detected t"-om strains belonging to A. hjili-o~~hila, Ebrio,aud the family Ef\ulcornertei,obncteriaceae. This study provides the first molecular tool for mdentifying the species 8.caviae.ing the species 8. caviae.

키워드

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