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首页> 外文期刊>Plant Disease >Verticillium Wilt Caused by Verticillium dahliae and V. nonalfalfae in Potato in Northern China
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Verticillium Wilt Caused by Verticillium dahliae and V. nonalfalfae in Potato in Northern China

机译：北方马铃薯的Verticillium dahliae和V. nonalfalfae引起的verticillium枯萎病

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摘要

Potato (Solatium tuberosum L.) is one of the most important staple foods in many parts of the world including China. In recent years, Verticillium wilt has become a severe threat to potato production in China. During 2015 to 2016, 287 samples of symptomatic potato plants were collected from 15 counties in five provinces from northern China. One hundred and eighty-seven Verticillium-like colonies were isolated from these samples and identified to species based on cultural and morphological characteristics, and multigene phylogeny based on the partial sequences of actin (ACT), elongation factor 1-alpha (EFla), glyceraldehyde-3-phosphate dehydrogenase (GPD), and tryptophan synthase (TS) genes. A consensus-rooted most parsimonious phyloge-netic tree wasgenerated from the data. One hundred and fifteen isolates comprising 61.5% of the total were identified as Verticillium dahliae, and the remaining 38.5% of the isolates were identified as V. nonalfal-fae. V. dahliae was widely distributed in Shaanxi (84.1 %), Inner Mongolia (76.7%), Gansu (12.8%), and Qinghai (100%, representing asingle isolate). V. dahliae was not recovered from the samples in Ning-xia. V. nonalfalfae dominated the collections from Gansu (87.2%) and Ningxia (100%) but was also recovered from Shaanxi (15.9%) and Inner Mongolia (23.3%) at lower frequencies. Neither V. albo-atrum nor V. alfalfae was recovered from the sampled areas. The V. nonalfalfae isolates were predominantly isolated from the samples collected from altitudes above 1,800 m, and in contrast, V. dahliae isolates were mainly recovered from fieldssampled below 1,800 m. The optimum temperature for the colony growth of V. nonalfalfae was lower (20°C) than that for V. dahliae (25°C). Pathogenicity tests demonstrated that V. dahliae and V. nonalfalfae were both pathogens of potato Verticillium wilt, with V. dahliae isolates exhibiting higher virulence than V. nonalfalfae isolates regardless of the collection area of the species. This is the first documentation of V. nonalfalfae infecting 5. tuberosum in China and the higher altitudes associated with infections of V. nonalfalfae anywhere in the world.
机译：土豆（盐酸盐盐岩L.）是世界各地最重要的主食之一，包括中国。近年来，弗里霉威尔特对中国土豆生产造成严重威胁。 2015年至2016年，从北方五个省份的15个县收集了287个症状马铃薯植物样本。从这些样品中分离了一百八十七个葡萄状菌落，并基于文化和形态学特征，基于肌动蛋白（ACT），伸长因子1-α（EFLA），甘油醛的粒子细胞发生-3-磷酸脱氢酶（GPD）和色氨酸合酶（TS）基因。从数据中获得了一种辅导的大多数令人瘫痪的植物树 - NetiC树。将总量的61.5％的分离物鉴定为Verticillium Dahliae，其余的38.5％的分离株被鉴定为V. nonalfal-Fae。 V. Dahliae广泛分布在陕西（84.1％），内蒙古（76.7％），甘肃（12.8％）和青海（100％，代表Asingle孤立）。 V. Dahliae没有从宁夏的样品中恢复过来。 V. Nonalfalfae主导来自甘肃（87.2％）和宁夏（100％）的收藏，但也从陕西（15.9％）和内蒙古（23.3％）以较低频率恢复。从采样区域中回收V. Albo-acrum和V.Alfalfae都没有。 V. nonalfalfae分离物主要与从1,800米的高度收集的样品中分离出来的样品，相反，V.Ahliae分离物主要从1,800米的田间回收。 V. nonalfalfaae的菌落生长的最佳温度低于V.Ahliae（25℃）的低（20℃）。致病性测试证明V.Dahliae和V.Nonalfalfae是马铃薯黄藻枯萎病的病原体，V. Dahliae分离物与V. nonalfalfae分离的毒力较高，无论物种的收集区域如何。这是V. nonalfalfae感染的第5种文献。中国肺肿和较高的海拔高度与世界任何地方的V. nonalfalfae感染相关。

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  • 来源
    《Plant Disease》 |2018年第10期|共7页
  • 作者

    Rui Jing; Haiyuan Li; Xiaoping Hu; Wenjing Shang; Ruiqing Shen; Chengjin Guo; Qingyun Guo; Krishna V. Subbarao;

  • 作者单位

    State Key Laboratory of Crop Stress Biology for Arid Areas College of Plant Protection Northwest A&

    F University Yangling Shaanxi 712100 China;

    State Key Laboratory of Crop Stress Biology for Arid Areas College of Plant Protection Northwest A&

    F University Yangling Shaanxi 712100 China;

    State Key Laboratory of Crop Stress Biology for Arid Areas College of Plant Protection Northwest A&

    F University Yangling Shaanxi 712100 China;

    State Key Laboratory of Crop Stress Biology for Arid Areas College of Plant Protection Northwest A&

    F University Yangling Shaanxi 712100 China;

    Plant Protection Institute Ning- xia Agriculture and Forestry Academy Yinchuan Ningxia 750002 China;

    Plant Protection Institute Ning- xia Agriculture and Forestry Academy Yinchuan Ningxia 750002 China;

    Key Laboratory of Agricultural Integrated Pest Management In Qinghai Province Academy of Agriculture and Forestry Science Qinghai University Xining Qinghai 810016 China;

    Department of Plant Pathology University of California Davis Salinas CA 93905;

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  • 正文语种 eng
  • 中图分类 植物保护;
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