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| 一种由麦根腐平脐蠕孢(Bipolaris sorokiniana)引起的柳枝稷叶斑病 | |
| 引用本文： | 马甲强,袁庆华,王瑜,苗丽宏.一种由麦根腐平脐蠕孢(Bipolaris sorokiniana)引起的柳枝稷叶斑病[J].植物病理学报,2016,46(4):569-572. |
| 作者姓名： | 马甲强 袁庆华 王瑜 苗丽宏 |
| 作者单位： | 中国农业科学院北京畜牧兽医研究所,北京 100193; 甘肃农业大学草业学院,兰州 730070 |
| 基金项目： | 公益性行业(农业)科研专项(201303057);“十二五”国家科技支撑计划项目(2011BAD17B01) |
| 摘 要： | <正>柳枝稷(Panicum virgatum)属禾本科(Gramineae)黍属(Panicum)是多年生C4草本植物。该植物原产于北美,环境适应性极强,具有耐旱、耐盐碱、耐贫瘠等特点。它不仅是国际上公认的作为生物燃料的能源作物,还是一种优质牧草。截止2010年,柳枝稷在我国北方种植面积已达115.8 hm~21]。随着种植面积的不断扩大,柳枝稷病害问题越来越严重,病害造成柳枝稷生物量下 |
A leaf spot disease of switchgrass caused by Bipolaris sorokiniana |
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| MA Jia-qiang,YUAN Qing-hua,WANG Yu,MIAO Li-hong.A leaf spot disease of switchgrass caused by Bipolaris sorokiniana[J].Acta Phytopathologica Sinica,2016,46(4):569-572. | |
| Authors: | MA Jia-qiang YUAN Qing-hua WANG Yu MIAO Li-hong |
| Institution: | Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China ; Pratacultural College of Gansu Agricultural University, Lanzhou 730070, China |
| Abstract: | In 2014, switchgrass leaf spot was found on switchgrass in Shandong, China. In order to clear switchgrass leaf spot pathogen and it's taxonomic status, the pathogen was identified by morphology and molecular biology identification. According to the characteristics of conidia, conidiophores and conidia germination, it was identified as Bipolaris sorokiniana. Conidia were mostly straight, oblong, ovate, and olive-brown with 3 to 9 septa, it's two ends germinate. the dimensions were (13.5-25.5) μm × (21-78.5) μm. Conidiophores were single, sympodial, straight or geniculate, gray to brown, multiseptate, with 2 to 8 septa, Conidiophores were (45-112) μm × (6-8) μm. Sequence analysis of the rDNA-ITS region showed that the identity had 100% homology with Bipolaris sorokiniana in GenBank. The first report of leaf spot caused by Bipolaris sorokiniana on switchgrass in China. |
| Keywords: | Switchgrass leaf spot identification |
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