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2021년 전라권역 양식산 잉어과어류의 법정전염병 모니터링
이순정,김승민,주성철,임승묵,이준형,김지혜,정은빈,진수영,전연미,권문경 (사)한국해양생명과학회 2022 한국해양생명과학회지 Vol.7 No.1
본 연구에서는 2021년 전남, 전북을 대상으로 23개소에서 어류 4종(향어, 비단잉어, 참붕어, 금붕어) 총 1,115마리에 대하여 병원체 감염 여부를 조사하였다. 법정전염병 3종(SVC, Spring viraemia of carp, EUS, Epizootic ulcerative syndrome, and KHVD, Koi herpesvirus disease)을 분 석한 결과, 조사한 모든 시료에서 법정전염병이 검출되지 않아 전라권에서 조사한 잉어과어 류는 청정국 또는 청정지역 선언에 중요한 정보를 제공할 것이다.
이순정,지보영,손맹현,이상래 한국조류학회I 2017 ALGAE Vol.32 No.2
Red rot disease has caused a major decline in Pyropia (Nori) crop production in Korea, Japan, and China. To date, onlyPythium porphyrae (Pythiales, Oomycetes) has been reported as the pathogen causing red rot disease in Pyropia yezoensis(Rhodophyta, Bangiales). Recently, Pythium chondricola was isolated from the infected blades of Py. yezoensis duringmolecular analyses using the mitochondrial cox1 region. In this study, we evaluated the pathogenicity of P. chondricola asan algal pathogen of Py. yezoensis. Moreover, a new cox2 marker was developed with high specificity for Pythium species. Subsequent to re-inoculation, P. chondricola successfully infected Py. yezoensis blades, with the infected regions containingsymptoms of red rot disease. A novel cox2 marker successfully isolated the cox2 region of Pythium species from theinfected blades of Py. yezoensis collected from Pyropia aquaculture farms. cox2 sequences showed 100% identity withthat of P. chondricola (KJ595354) and 98% similarity with that of P. porphyrae (KJ595377). The results of the pathogenicitytest and molecular analysis confirm that P. chondricola is a new algal pathogen causing red rot disease in Pyropia species. Moreover, it could also suggest the presence of cryptic biodiversity among Korean Pythium species.