| 香梨树腐烂病菌表型菌株生物学特性及致病性 |
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| 引用本文： | 董力畅,王喆,王兰,沙帅帅,郝海婷.香梨树腐烂病菌表型菌株生物学特性及致病性[J].植物病理学报,2022,52(6):1013-1017. |
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| 作者姓名： | 董力畅 王喆 王兰 沙帅帅 郝海婷 |
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| 作者单位： | 塔里木大学农学院/南疆农业有害生物综合治理兵团重点实验室/南疆特色果树高效优质栽培与深加工技术国家地方联合工程实验室,阿拉尔 843300 |
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| 基金项目： | 国家自然基金-新疆联合基金重点支持项目(U1903206);旱区作物逆境生物学国家重点实验室开放课题项目(CSBAA2020009);新疆维吾尔自治区研究生科研创新项目(XJ2021G293) |
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| 摘 要： |
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| 收稿时间： | 2021-11-21 |
Biological characteristics and pathogenicity of phenotypic strains of fragrant pear rot pathogen |
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| DONG Lichang,WANG Zhe,WANG Lan,SHA Shuaishuai,HAO Haiting.Biological characteristics and pathogenicity of phenotypic strains of fragrant pear rot pathogen[J].Acta Phytopathologica Sinica,2022,52(6):1013-1017. |
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| Authors: | DONG Lichang WANG Zhe WANG Lan SHA Shuaishuai HAO Haiting |
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| Institution: | College of Agricultural, Tarim University /Key Laboratory of Integrated Pest Management (IPM) of Xinjiang Production and Construction Corps in Southern Xinjiang/The National-Local Joint Enoineering Laboratory of High Efficiency and Superior- Quality Cultivatlon and Fruit Deep Processing Iechnology on Characteristic Fruit Trees, Alar 843300, China |
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| Abstract: | In order to clarify the intraspecies diversity and pathogenic differentiation of Valsa pyri, eight strains with markedly different colony phenotypes out of the 303 strains isolated from Korla fragrant pear producing area were screened out for biological characteristics and pathogenicity research. According to the difference of colony color and sporulation ability on PDA medium, eight strains were divided into four phenotypes: easy to sporulate with golden yellow, hard to sporulate with cream yellow, brown green and gray black. Biological research results showed that the mycelial growth rate of the four phenotypic strains was the fastest at 28 ℃, full light, pH 5, wettable starch as carbon source and glutamic acid as nitrogen source, but there were differences among different phenotypes. The results of pathogenicity test showed that there was pathogenicity differentiation between different phenotypes, in which the brown green phenotype strain were classified to the strong pathogenicity type, the gray black and golden yellow phenotype strain was determined to belong to medium pathogenicity type, while the milky yellow phenotype strain was affiliated with weak pathogenicity type. The results provide a basis for revealing the population diversity of pathogen and the control of Korla fragrant pear tree rot. |
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| Keywords: | Korla fragrant pear tree Valsa pyri phenotype biological characteristics pathogenicity |
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