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Population Structure of Stagonosporopsis Species Associated with Cucurbit Gummy Stem Blight in Korea
정용직,권오규,정아람,이현지,문혜란,이온유,홍점규,박창진 한국식물병리학회 2022 Plant Pathology Journal Vol.38 No.5
Gummy stem blight (GSB), a common and serious disease in cucurbits worldwide, is caused by three genetically distinct species: Stagonosporopsis cucurbitacearum (syn. Didymella bryoniae), S. citrulli, and S. caricae. In Korea, however, the three species of Stagonosporopsis have been barely characterized. In this study, 21 Stagonosporopsis isolates were recovered from watermelon (Citrullus lanatus) and muskmelon (Cucumis melo) leaves and stem showing blight symptoms collected from 43 fields in Korea. Sequence analysis performed with an internal transcribed spacer region was not competent to differentiate the Stagonosporopsis isolates. On the contrary, analysis of β-tubulin (TUB) genes and three microsatellite markers, Db01, Db05, and Db06, successfully differentiated Stagonosporopsis isolates. Further sequence analysis identified two Stagonosporopsis species, S. citrulli and S. caricae, and one previously unknown species of Stagonosporopsis. Representative isolates from three species caused dark water-soaked lesions on the detached watermelon and muskmelon leaves with no significant differences in the aggressiveness. Our results indicate that the S. citrulli, S. caricae, and unknown Stagonosporopsis sp. are all causal agents of GSB for both watermelon and muskmelon. This is the first report of a new species and the population structure of Stagonosporopsis species causing GSB in Korea.
梁太有,鄭容稷,成近濟,張聲九,蔡洙應,金泰珍 慶熙大學校 1979 論文集 Vol.9 No.-
A clinical observation was made on urolithiasis among the in-patients in the Department of Urology, Kyung Hee University Hospital during the period from Oct. 1971 to Aug. 31 1979. The results were summarized as follows. 1) Among 1597 patients hospitalized, 584 patients were urolithiasis, giving a rate of 36.3%. 2) The age was ranged from 6 to 83 years and the most favorable age was in 20 to 40 years (85%). The sex ratio, male to female, was 1.9:1. 3) Distribution of the location of the stones was ureter in 79.5%, kidney in 15.1%, bladder in 5.0% and prostate in 0.4% in order of frequency. 4) Multi-located stones were noted in 25 patients (5.5%) of all cases. 5) Microscopic hematuria was found in 368 cases of all, giving a rate of 77% 6) Pyuria was noted in 40.3% of kidney stones. 7) Surgical intervention was performed in 58.3% of kidney stones, 39.5% of ureter stones and in 66.6% in bladder stones. 8) Ureter stones were associated with ureteral polyp in 4 cases.