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Position: Home > Articles > Identification of Pathogen Causing Brown Spot on Wax Gourd in Hainan China Vegetables 2020 (2) 62-65

海南冬瓜褐斑病病原鉴定

作  者:
曾向萍;王会芳;何舒;符美英;田威;罗激光;肖敏
单  位:
海南省农业科学院农业环境与植物保护研究所
关键词:
冬瓜;褐斑病;多主棒孢
摘  要:
为了明确海南冬瓜种植基地发现的冬瓜新病害病原菌种类,将从澄迈县采集的病样进行分离纯化培养后观察分析。结果显示:该病害为冬瓜褐斑病,根据病原菌形态特征和致病性鉴定为多主棒孢〔Corynespora cassiicola(Berk&Curt)Wei〕,序列比对结果与多主棒孢同源性为100%,且与不同地区的多主棒孢均属于同一分支,确定病原菌为多主棒孢。
译  名:
Identification of Pathogen Causing Brown Spot on Wax Gourd in Hainan
作  者:
ZENG Xiang-ping;WANG Hui-fang;HE Shu;FU Mei-ying;TIAN Wei;LUO Ji-guang;XIAO Min;Institute of Plant Protection,Hainan Provincial Academy of Agricultural Sciences,Key Laboratory of Plant Disease and Pest Control of Hainan Province,Scientific Observation and Experiment Station of Crop Pests in Haikou,Ministry of Agricultur and Rural Affairs;
关键词:
Wax gourd;;Brown spot;;Corynespora cassiicola
摘  要:
In order to identify the pathogenic bacteria species of new wax gourd disease discovered in Hainan wax gourd planting base,this study observed and analyzed the samples collected from Chengmai County after separation and pure culture. The results indicated that this disease is wax gourd brown spot. According to observation on morphological characteristics of pathogenic bacteria and pathogenicity identification,it was Corynespora cassiicola(Berk & Curt)Wei. Results showed that the similarity of sequence alignment and homology of Corynespora cassiicola was 100%. They and Corynespora cassiicola from different areas belonged to the same branch. It was confirmed that the disease pathogen was Corynespora cassiicola(Berk & Curt)Wei.

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