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首页> 外文学位 >Identification, distribution, biology, epidemiology, and control of botryosphaeriaceae species associated with grapevine dieback in California and other grape-growing regions in the United States and Mexico.
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Identification, distribution, biology, epidemiology, and control of botryosphaeriaceae species associated with grapevine dieback in California and other grape-growing regions in the United States and Mexico.

机译：与加利福尼亚和美国和墨西哥其他葡萄种植区的葡萄枯萎相关的葡萄球菌物种的鉴定，分布，生物学，流行病学和控制。

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摘要

Botryosphaeria species have recently been identified as important grapevine pathogens worldwide. To date, Botryosphaeria rhodina has been the only species associated with cankers on Vitis vinifera in California. In order to determine the occurrence of other Botryosphaeria species in California, a field survey was conducted of 166 vineyards in 21 counties throughout the state. A total of 1,735 samples of cankered trunks, cordons, and spurs were collected. Botryosphaeria species were the most common fungi isolated from grapevine cankers in California. Morphological identification along with phylogenetic analysis of the internal transcribed spacer region (ITS1-5.8S-ITS2) of the nuclear ribosomal DNA (rDNA) and a partial sequence of the beta-tubulin gene showed that at least seven Botryosphaeria species occur on grapevines in California, including B. rhodina, B. obtusa, B. stevensii, B. dothidea, B. lutea, B. australis and B. parva. Botryosphaeria species were found in grapevine cankers in all grape-growing regions surveyed in California, while incidence and distribution varied with location. Grapevine cankers in California have been mainly associated with Eutypa dieback. However, the frequent recovery of Botryosphaeria from cankers in this study indicates the role of these fungi in grapevine health needs to be more carefully considered.
机译：葡萄球菌最近被确认为全世界重要的葡萄病原体。迄今为止，在加利福尼亚州的葡萄中，罗氏灰霉菌是唯一与溃疡病相关的物种。为了确定在加利福尼亚州是否存在其他葡萄孢属，对全州21个县的166个葡萄园进行了实地调查。总共收集了1,735个弯曲的树干，警戒线和马刺样品。在加利福尼亚州，葡萄孢菌是最常见的从葡萄溃疡病中分离出来的真菌。核糖体DNA（rDNA）的内部转录间隔区（ITS1-5.8S-ITS2）的形态学鉴定以及系统发育分析以及β-微管蛋白基因的部分序列表明，在加利福尼亚的葡萄树上至少存在七个Botryosphaeria种包括B. rhodina，B。obtusa，B。stevensii，B。dothidea，B。lutea，B。australis和B. parva。在加利福尼亚州调查的所有葡萄种植区的葡萄枯萎病中都发现了灰霉病菌种，而发病率和分布随地点而异。加利福尼亚的葡萄溃疡病主要与Eutypa死亡相关。但是，在这项研究中，经常从溃疡病中回收灰霉病菌，这表明需要更仔细地考虑这些真菌在葡萄健康中的作用。

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  • 作者

    Urbez-Torres, Jose Ramon.;

  • 作者单位

    University of California, Davis.;

  • 授予单位 University of California, Davis.;
  • 学科 Agriculture Horticulture.Agriculture Plant Pathology.
  • 学位 Ph.D.
  • 年度 2009
  • 页码 166 p.
  • 总页数 166
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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