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PCR Primer Developed for Diagnosis of Xanthomonas arboricola pv. pruni in Prune

자두 검은점무늬병원균의 PCR진단 및 검출

  • Ryu, Young-Hyun (Institute for Natural Products Research, Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Lee, Joong-Hwan (Dept. of Plant Environment Research, Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Kwon, Tae-Young (Dept. of Plant Environment Research, Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Kim, Seung-Han (Bonghwa Alpine Medicinal Plant Experiment Station, Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Kim, Dong-Geun (Institute for Natural Products Research, Gyeongsangbuk-do Agricultural Research & Extension Services)
  • 류영현 (경상북도농업기술원 신물질연구소) ;
  • 이중환 (경상북도농업기술원 농업환경연구과) ;
  • 권태영 (경상북도농업기술원 농업환경연구과) ;
  • 김승한 (경상북도농업기술원 봉화고냉지약초시험장) ;
  • 김동근 (경상북도농업기술원 신물질연구소)
  • Received : 2010.02.02
  • Accepted : 2010.07.21
  • Published : 2010.08.01

Abstract

Bacterial black spot disease of prune fruit (Prunus salicina cv. formosa) has outbroke around major prune production area, Gimcheon, Euiseong and Gunwi in Gyungbuk province and has caused severe economic loss. Integrons PCR primer was designed along with sample pre-incubation and nested PCR method to enhance detection sensitivity for early detection of bacteria in fields. Designed integrons PCR primer successfully detected Xanthomonas arboricola pv. pruni from field collected samples, fruit, leaf, branch and even in raindrop collected from prune orchard. Pre-incubation along with nested PCR enhanced sensitivity to detect X. arboricola pv. pruni from seemingly healthy looking, symptomless branches. Designed integrons PCR can be used in prune nursery fields and in plant quarantine practice for the detection of X. arboricola pv. pruni.

자두 주산지인 경북 김천을 비롯하여 의성, 경산, 군위지역에 발생하는 자두과실의 검은점무늬병 병원균을 조기 검출하기 위하여 integrons를 이용한 primer를 제작하고 DNA 추출향상을 위해 전배양법을 그리고 검출감도 향상을 위해 nested PCR을 시도하였다. 제작된 integrons primer로 병반 시료를 PCR한 결과 예상되는 크기인 760 bp로 증폭이 되어 검은점무늬병의 원인 병원균은 Xanthomonas arboricola pv. pruni로 확인되었고 진단용 primer로 사용 될 수 있음을 확인할 수 있었다. DNA 추출 방법별로 PCR 진단효율은 조사한 결과 직접 추출하는 방법보다는 10% LB배지로 전배양한 다음 DNA를 추출하는 방법이 더 효과적이었고 nested PCR을 이용할 경우에는 과원내 강우중의 X. arboricola pv. pruni의 검출도 가능하였다. 이번에 개발된 Integrons primer를 이용, 전배양법과 nested PCR을 실시할 경우 1일 이내에 병징이 나타나지 않은 유묘에서의 X. arboricola pv. pruni 감염여부나 식물검역에서의 X. arboricola pv. pruni 감염식물 진단 등에도 활용이 가능할 것으로 생각된다.

Keywords

References

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