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논문 기본 정보

자료유형
학술저널
저자정보
Xin Zhong (Hebei Agricultural University) Yang Yang (Hebei Agricultural University) Jing Zhao (Hebei Agricultural University) Binbin Gong (Hebei Agricultural University) Jingrui Li (Hebei Agricultural University) Xiaolei Wu (Hebei Agricultural University) Hongbo Gao (Hebei Agricultural University) Guiyun Lü (Hebei Agricultural University)
저널정보
한국식물병리학회 The Plant Pathology Journal The Plant Pathology Journal 제38권 제3호
발행연도
2022.6
수록면
229 - 238 (10page)

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Fusarium wilt caused by Fusarium oxysporum f. sp. niveum (Fon) is the most serious soil-borne disease in the world and has become the main limiting factor of watermelon production. Reliable and quick detection and quantification of Fon are essential in the early stages of infection for control of watermelon Fusarium wilt. Traditional detection and identification tests are laborious and cannot efficiently quantify Fon isolates. In this work, a real-time polymerase chain reaction (PCR) assay has been described to accurately identify and quantify Fon in watermelon plants and soil. The FONRT-18 specific primer set which was designed based on identified specific sequence amplified a specific 172 bp band from Fon and no amplification from the other formae speciales of Fusarium oxysporum tested. The detection limits with primers were 1.26 pg/μl genomic DNA of Fon, 0.2 pg/ng total plant DNA in inoculated plant, and 50 conidia/g soil. The PCR assay could also evaluate the relationships between the disease index and Fon DNA quantity in watermelon plants and soil. The assay was further used to estimate the Fon content in soil after disinfection with CaCN₂. The real-time PCR method is rapid, accurate and reliable for monitoring and quantification analysis of Fon in watermelon plants and soil. It can be applied to the study of disease diagnosis, plantpathogen interactions, and effective management.

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