| 我国桃树新病害——叶枯病的病原菌鉴定及生物学特性研究 |
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| 引用本文： | 张勇,李晓军,曲健禄,范昆,杨建明.我国桃树新病害——叶枯病的病原菌鉴定及生物学特性研究[J].园艺学报,2010,37(11):1745-1750. |
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| 作者姓名： | 张勇 李晓军 曲健禄 范昆 杨建明 |
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| 作者单位： | （山东省果树研究所，山东泰安 271000） |
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| 基金项目： | 国家科技支撑计划项目，国家科技基础条件平台项目 |
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| 摘 要： | 对我国桃树上发生的一种新病害进行了病原鉴定及生物学特性研究。通过形态特征观察、致病性测定、rDNA-ITS序列测定及分析,确定该病害为立枯丝核菌(Rhizoctonia solaniK ühn)引起的叶枯病,病原菌rDNA-ITS区序列已在GenBank上登录(GenBank登录号:GU270581)。病原菌生长的适宜温度为25~30℃,适宜pH5~7,适宜碳源为蔗糖,适宜氮源为酵母。
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| 关 键 词： | 桃树 叶枯病 立枯丝核菌 生物学特性 |
Pathogen Identification and Biological Characteristic of Leaf Blight——A New Peach Disease in China |
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| ZHANG Yong,LI Xiao-jun,QU Jian-lu,FAN Kun,YANG Jian-ming.Pathogen Identification and Biological Characteristic of Leaf Blight——A New Peach Disease in China[J].Acta Horticulturae Sinica,2010,37(11):1745-1750. |
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| Authors: | ZHANG Yong LI Xiao-jun QU Jian-lu FAN Kun YANG Jian-ming |
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| Institution: | （Shandong Institute of Pomology，Tai’an，Shandong 271000，China） |
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| Abstract: | The pathogen causing leaf blight on peach was isolated from diseased leaf. Based on morphological characteristics，pathogenicity test，the sequence of ribosomal DNA-ITS，the pathogen was identified as Rhizoctonia solani Kühn，the rDNA-ITS sequence data of the pathogenic fungus has been submitted to GenBank（GenBank accession number：GU270581）. The temperature for mycelial growth of the pathogen ranged from 10 ℃ to 35 ℃，with the optimum temperature 25–30 ℃. The pH ranged from 4–10 with the optimum pH 5–7. For mycelial growth，the optimum carbon and nitrogen source were sucrose and yeast，respectively. |
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| Keywords: | peach leaf blight Rhizoctonia solani Kühn biological characteristics |
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