| 杨 超1, 张国丽2, 任毓忠3, 钟杨琼3, 高祥雷3, 李 卓3, 张亚平1*, 李国英3*.北疆沿天山北坡一带葡萄穗轴褐枯病病原菌的鉴定[J].植物保护,2017,43(3):129-135. |
| 北疆沿天山北坡一带葡萄穗轴褐枯病病原菌的鉴定 |
| Identification of the pathogens of grape spikestalk brown along the Tianshan Mountains |
| 投稿时间：2016-06-06 修订日期：2016-09-16 |
| DOI： |
| 中文关键词: 葡萄 穗轴褐枯病 病原鉴定 链格孢菌 |
| 英文关键词:grape spikestalk brown spot identification of pathogen Alternaria spp. |
| 基金项目:公益性行业(农业)科研专项（201203035） |
| 作者 | 单位 | | 杨 超1, 张国丽2, 任毓忠3, 钟杨琼3, 高祥雷3, 李 卓3, 张亚平1*, 李国英3* | 1. 石河子大学生命科学学院, 石河子 832000
2. 新疆农垦科学院生物技术研究所, 石河子 832000
3. 石河子大学农学院, 石河子 832000 |
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| 中文摘要: |
| 2015年在新疆沿天山北坡一带的‘夏黑’葡萄上,出现了一种果穗穗轴变褐、枯死、幼果萎缩的病害,部分果园发病率达到100%,减产30%~50%。为了查明其发病原因,采用常规组织分离法对发病的穗轴进行了病原分离和纯化,共获得104个链格孢属真菌Alternaria spp.菌株,选取其中10个代表性菌株,通过常规形态学鉴定、致病性测定及核糖体内转录间隔区ITS (ITS1/ITS4) 和组蛋白3基因序列分析,结果表明,引起该病害的病原有两个,分别是Alternaria tenuissima和A. alternata,与国内大部分葡萄产区报道的A. viticola不同。 |
| 英文摘要: |
| A grape disease which caused brown necrosis of the spikestalk and fruit shrinkage was observed on ‘Summer Black’ grape along the Tianshan Mountains in Northern Xinjiang in 2015. The disease incidence in some orchards reached 100%, reducing yields by 30%-50%. One hundred and four Alternaria spp. were isolated from diseased tissues to determine the causal agent of the disease. Ten representative isolates were selected for morphological observation, pathogenicity tests, comparison of internal transcribed spacer regions 1 and 4, and histone 3 nucleotide sequences. The results showed that A.tenuissima and A.alternata were the causal pathogens of spikestalk brown spot in grape. This was different from previous reports from other regions of China. |
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