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First Report of Dieback Caused by Lasiodiplodia pseudotheobromae on Ormosia pinnata in China

机译:第一个由Lasiodiplodia pseudotheobromae在中国ormosia pinnata引起的罪的第一报告

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摘要

Ormosia pinnata (Lour.) Merr. is an important tree used for landscape and plant recovery of barren slopes in China. During an investigation of plant disease on landscape trees in 2018, a dieback was observed on O. pinnata trees in Guangzhou, Guangdong Province, China. Symptoms were characterized by initial dryness of the twigs and eventual death of the whole branch of the tree. Isolations from symptomatic branches yielded 13 isolates including two main morphotypes. Pathogenicity tests showed that isolate GDOP I from Type I caused dieback of O. pinnata. Based on morphological characteristics and molecular analysis of the internal transcribed spacer rDNA (ITS1-5.8S-ITS2) and partial sequence of the translation elongation factor 1 alpha (EF1-alpha), the fungus causing dieback on O. pinnata was identified as Lasiodiplodia pseudotheobromae. This is the first report of L. pseudotheobromae infecting O. pinnata in the world.
机译:Ormosia pinnata(lour。)merr。 是中国贫瘠山坡景观和植物恢复的重要树。 在2018年景观树上植物疾病的调查期间,在广东广州市广州的o.Pinnata树上观察到了顽皮。 症状的特征是枝条的初始干燥,最终的树木的死亡。 来自症状分支的分离产生13个分离物,包括两个主要的Morothype。 致病性测试显示,分离出I型的GDOP I引起了O. Pinnata的防死。 基于内部转录间隔rDNA(IT1-5.8S-ITS2)和翻译伸长因子1α(EF1-α)的部分序列的形态学特征及分子分析,导致O. Pinnata的真菌被鉴定为Lasiodiplodia pseudotheobromae 。 这是L.Pseudotheobromae感染O. Pinnata的第一个报告。

著录项

  • 来源
    《Plant Disease》 |2020年第10期|共5页
  • 作者单位

    Guangdong Ecoengn Polytech Collaborat Innovat Ctr Plant Pest Management &

    Bi Guangzhou 510520 Peoples R China;

    Guangdong Ecoengn Polytech Collaborat Innovat Ctr Plant Pest Management &

    Bi Guangzhou 510520 Peoples R China;

    Guangdong Ecoengn Polytech Collaborat Innovat Ctr Plant Pest Management &

    Bi Guangzhou 510520 Peoples R China;

    Guangdong Ecoengn Polytech Collaborat Innovat Ctr Plant Pest Management &

    Bi Guangzhou 510520 Peoples R China;

    Univ Gottingen Mol Phytopathol &

    Mycotoxin Res Gottingen Germany;

    Guangdong Ecoengn Polytech Collaborat Innovat Ctr Plant Pest Management &

    Bi Guangzhou 510520 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 植物保护;
  • 关键词

    dieback; Lasiodiplodia pseudotheobromae; ITS; EF1-alpha;

    机译:沉浸式;Lasiodiplodia pseudotheobromae;它;ef1-alpha;

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