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浙江省不同水稻亚种上稻瘟病菌种群分布及生理小种组成

引用本文：郝中娜,邱海萍,毛雪琴,柴荣耀,张震,王艳丽,王教瑜.浙江省不同水稻亚种上稻瘟病菌种群分布及生理小种组成.植物保护学报,2024,51(6):1296-1305

DOI：10.13802/j.cnki.zwbhxb.2024.2024034

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作者	单位	E-mail
郝中娜	浙江省农业科学院植物保护与微生物研究所, 浙江省国家农作物品种抗性鉴定站, 杭州 310021
邱海萍	浙江省农业科学院植物保护与微生物研究所, 浙江省国家农作物品种抗性鉴定站, 杭州 310021	qiuhping@163.com
毛雪琴	浙江省农业科学院植物保护与微生物研究所, 浙江省国家农作物品种抗性鉴定站, 杭州 310021
柴荣耀	浙江省农业科学院植物保护与微生物研究所, 浙江省国家农作物品种抗性鉴定站, 杭州 310021
张震	浙江省农业科学院植物保护与微生物研究所, 浙江省国家农作物品种抗性鉴定站, 杭州 310021
王艳丽	浙江省农业科学院植物保护与微生物研究所, 浙江省国家农作物品种抗性鉴定站, 杭州 310021
王教瑜	浙江省农业科学院植物保护与微生物研究所, 浙江省国家农作物品种抗性鉴定站, 杭州 310021	wangjiaoyu78@sina.com

中文摘要:为明确浙江省稻瘟病菌Magnaporthe grisea种群发生动态及不同水稻亚种上种群分布与生理小种组成结构，对2014—2023年该省分离、筛选的434株稻瘟病菌单孢菌株进行生理小种鉴定。结果显示：浙江省稻瘟病菌优势种群为籼型种群ZA和ZB，出现频率分别为34.3%和31.3%，种群发生动态相对稳定；籼型优势小种数量明显超过粳型优势小种，ZA₁和ZB₁小种出现频率最高，其次是ZB₁₃和ZC₁₅小种；共鉴别出3个籼型种群50个籼型小种和4个粳型种群11个粳型小种，稻瘟病菌种群和生理小种组成均呈现多样化趋势；源自籼稻的菌株（籼菌）中优势种群为ZB和ZA，出现频率分别为40.2%和27.5%，优势小种为ZB₁、ZA₁和ZB₁₃，其次是ZB₅和ZC₁₅小种；源自粳稻的菌株（粳菌）中优势种群为ZA和ZB，出现频率分别为38.2%和25.4%，优势小种为ZA₁，其次是ZB₁和ZE₃小种；源自籼粳杂交稻的菌株（籼粳菌）中优势种群为ZA和ZB，出现频率分别为43.0%和22.2%，优势小种为ZA₁。表明不同水稻亚种上稻瘟病菌种群分布及优势种群、生理小种组成及优势小种均有差异，但均表现为籼型种群和籼型小种占优势，这个特点在籼菌中更为突出。

中文关键词:浙江省稻瘟病菌水稻亚种种群生理小种

Population distribution and physiologic race composition of rice blast fungus Magnaporthe grisea isolates on different rice subspecies in Zhejiang Province

Author Name	Affiliation	E-mail
Hao Zhongna	Zhejiang National Test Station for Resistance Identification of Crop Variety, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, China
Qiu Haiping	Zhejiang National Test Station for Resistance Identification of Crop Variety, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, China	qiuhping@163.com
Mao Xueqin	Zhejiang National Test Station for Resistance Identification of Crop Variety, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, China
Chai Rongyao	Zhejiang National Test Station for Resistance Identification of Crop Variety, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, China
Zhang Zhen	Zhejiang National Test Station for Resistance Identification of Crop Variety, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, China
Wang Yanli	Zhejiang National Test Station for Resistance Identification of Crop Variety, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, China
Wang Jiaoyu	Zhejiang National Test Station for Resistance Identification of Crop Variety, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, China	wangjiaoyu78@sina.com

Abstract:To understand the population dynamics of rice blast fungus Magnaporthe grisea, as well as the population distribution and physiological race composition of M. grisea on different rice subspecies, 434 single-spore isolates of M. grisea isolated from Zhejiang Province from 2014 to 2023 were identified for physiological races. The results showed that the dominant populations in Zhejiang Province were the indica-type ZA and ZB groups, with occurrence frequencies of 34.3% and 31.3%, respectively, and the population dynamics of M. grisea was relatively stable. The numbers of the dominant indicatype races were significantly higher than those of the dominant japonica-type races, and the occurrence frequencies of the indica-type races ZA₁ and ZB₁ were the highest, followed by ZB₁₃ and ZC₁₅. A total of 50 indica-type races were identified from three indica-type populations and 11 japonica-type races were identified from four japonica-type populations, and the population and physiological race composition of M. grisea showed a diversified trend in Zhejiang Province. The dominant populations of strains derived from indica rice cultivars (indica strains) were ZB and ZA, with occurrence frequencies of 40.2% and 27.5%, respectively, and the dominant races were ZB₁, ZA₁, and ZB₁₃, followed by ZB₅ and ZC₁₅. In the strains derived from japonica rice cultivars (japonica strains), the dominant populations were ZA and ZB, with occurrence frequencies of 38.2% and 25.4%, respectively, and the dominant race was ZA₁, followed by ZB₁ and ZE₃. Among the strains derived from indica-japonica hybrid rice cultivars (indica-japonica strains), the dominant populations were ZA and ZB, with occurrence frequencies of 43.0% and 22.2%, respectively, and the dominant race was ZA₁. The results suggested that the distribution of M. grisea populations, dominant populations, physiologic race composition, and dominant races varied between rice subspecies. However, the indica-type population and race were more dominant in Zhejiang Province, which was more pronounced in the indica strains than in the japonica and indica-japonica strains.

keywords:Zhejiang Province Magnaporthe grisea rice subspecies population physiologic race

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