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辣椒霜霉病病原鉴定

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Identification of the pathogen causing downy mildew on pepper
Pepper(Capsicum annuum L.),belonging to the Solanaceae family,is an economically important vegetable crop in China.In April 2021,severe downy mildew-like symptoms were observed on pepper in Ningx-iang County,Changsha City,Hunan Province.The diseased pepper plants exhibited large,interveinal chlorotic lesions on the adaxial surface of the leaves,which coalesced and turned necrotic as disease progressed.Mean-while,white to gray mycelia could be seen on the abaxial side.Based on morphological characteristics,rDNA-ITS and cox2 sequence analysis,and the result of pathogenicity test,the pathogen was identified as Peronospora capsici.This is the first report of downy mildew caused by P.capsici on pepper in Hunan Province,China,and the sequence information of P.capsici was for the first time deposited in the NCBI nucleotide database.

Peronospora capsicipepperdowny mildewmolecular identification

李欣、谢学文、张竹青、石延霞、李磊、范腾飞、李宝聚、柴阿丽

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中国农业科学院蔬菜花卉研究所,蔬菜生物育种全国重点实验室,北京 100081

湖南省蔬菜研究所,长沙 410125

Peronospora capsici pepper downy mildew molecular identification

国家重点研发计划(十三五)中国农科院科技创新工程项目国家大宗蔬菜产业技术体系建设项目

2020YFD1000300CAAS-ASTIP-IVFCAASCARS-25

2024

植物病理学报
中国植物病理学会

植物病理学报

CSTPCD北大核心
影响因子:0.865
ISSN:0412-0914
年,卷(期):2024.54(1)
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