引起山核桃干腐病的镰刀菌鉴定
Identification of Fusarium oblongum causing trunk canker disease on Carya cathayensis
查看参考文献9篇
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文摘
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山核桃(Carya cathayensis)为胡桃科(Juglandaceae)山核桃属(Carya)植物,落叶乔木,是中国特有的经济树种和干果,具有较高的经济价值。随着山核桃种植面积的扩大,干腐病的危害日趋严重。2021年5月,浙江省杭州市临安区的山核桃种植林出现典型的干腐病症状,严重地块发病率高达86.5%。发病初期,山核桃枝干韧皮部和木质部出现黄褐色、椭圆或类似水渍状的溃疡斑;随着病情逐渐扩展,病斑由褐转黑,树皮局部凸起,挤破后有墨汁般的液体流出。干腐病造成山核桃树势减弱、显著减产甚至枯死,对山核桃产业的可持续发展构成严重威胁,给乡村振兴带来不利影响。 |
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其他语种文摘
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Trunk canker disease is one of the most common diseases of Carya cathayensis, causing huge economic losses. In May 2021, typical trunk canker symptoms were observed on hickory in Lin'an City, Zhejiang Province. Three fungal isolates (ZQ3, ZQ5 and ZQ12) were obtained by tissue isolation and purified using single-spore isolation method. Species identification was performed by morphological traits and sequences analyses of internal transcribed spacers (ITS) of rDNA, TEF1-α, and LSU gene, and all the fungal isolates were identified as Fusarium oblongum. To fulfill the Koch's postulations, pathogenicity assay was carried out on phloem of the hickory stems. The all tested isolates were pathogenic to hickory, proving that F. oblongum was a pathogen inciting hickory trunk canker disease. This is the first report of F. oblongum causing trunk canker on Carya cathayensis in China. |
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来源
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植物病理学报
,2024,54(2):443-446 【核心库】
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DOI
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10.13926/j.cnki.apps.000879
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关键词
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山核桃
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干腐病
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镰刀菌
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地址
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1.
浙江农林大学, 浙江省省部共建亚热带森林培育国家重点实验室, 临安, 311300
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湖州师范学院生命科学学院, 湖州, 313000
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杭州临安植物检疫站, 临安, 311300
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0412-0914 |
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学科
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植物保护 |
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基金
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浙江省重点研发项目
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杭州市临安区科技项目
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文献收藏号
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CSCD:7863508
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参考文献 共
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