• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Plant Disease >Phylogeny and Pathogenicity of Celoporthe Species from Plantation Eucalyptus in Southern China
【24h】

Phylogeny and Pathogenicity of Celoporthe Species from Plantation Eucalyptus in Southern China

机译：中国南方种植植物桉树植物的系统发育和致病性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The family of Cryphonectriaceae (Diaporthales) includes many important tree pathogens, such as those that cause severe cankers on Eucalyptus trees. Recently, stem canker and cracked bark were observed on 8-year-old Eucalyptus grandis x E. urophylla trees in a plantation in southern China. Fruiting structures typical of Cryphonectriaceae fungi were observed on the surface of the diseased tissues. In this study, the isolated fungi were identified based on DNA sequence analyses and morphological characteristics, and their pathogenicity was tested on three Eucalyptus clones. DNA sequence comparisons of the internal transcribed spacer (ITS) regions (including the intervening 5.8S nrRNA gene), two regions of B-tubulin (BT2/BT1), and partial translation elongation factorl-ct (TEF-la), indicated that these isolates represent Celoporthe syzygii and one previously undescribed species. The undescribed species was also morphologically distinct from the other species of Celoporthe. The new species was describedand named C. cerciana sp. nov. Theresults of this study based on the ITS, BT2/BTI, and TEF-la sequences indicated that more than one haplotype was isolated from the same Eucalyptus tree. The findings of a previous study, whereby C. eucalypti was isolated from the same plantation as thatof this study, revealed the high species diversity of Celoporthe within a single plantation, which is associated with a single Eucalyptus sp. in southern China. The results further suggested that hybridization may occur between C. syzygii and C. eucalypti. In addition to the Eucalyptus trees, C. syzygii was also isolated from native Melastoma candidum in the same Eucalyptus plantation. The inoculation results showed that these fungi isolated from E. grandis x E. urophylla and M. candidum are pathogenicto all three tested E. grandis hybrid clones. Significant differences in tolerance were observed between the tested Eucalyptus clones, suggesting that disease-tolerant Eucalyptus genotypes can be selected for disease management.
机译：CryphoneastiaCeae（Dioporthales）的家族包括许多重要的树病原体，例如在桉树上引起严重溃疡的那些。最近，在南方南方的一个种植园，在8岁的桉树大X e.尿道树上观察到干溃疡和破裂的树皮。在患病组织的表面上观察到典型的CryphoneastiaCeae真菌的结果结构。在该研究中，基于DNA序列分析和形态特征来鉴定分离的真菌，并在三个桉树克隆上测试它们的致病性。 DNA序列比较内部转录的间隔物（其）区（包括中间5.8s NRRNA基因），B-微管蛋白（BT2 / BT1）的两个区域，以及部分翻译伸长系数 - CT（TEF-LA）表示这些分离物代表Celophorthe Syzygii和一个以前未描述的物种。未描述的物种也与其他物种不同于其他物种。将新物种描述为命名为C. cerciana sp。 11月。本研究的本研究基于其BT2 / BTI和TEF-LA序列表明，从相同的桉树树中分离出多于一个单倍型。前一项研究的结果，其中C.桉树与该研究的同一种植园中分离出来，揭示了单一种植园内Celceporthe的高种类多样性，其与单一的桉树Sp相关。在中国南方。结果进一步提出，在C. syzygii和C.桉树之间可能发生杂交。除了桉树之外，C. syzygii还从同一桉树种植园的天然血糖瘤Candidum中分离出来。接种结果表明，这些真菌从E. Grandis X E. Urophylla和M. candidum中分离出来的所有三个测试的E. Grandis杂交克隆。在测试的桉树克隆之间观察到耐受性的显着差异，表明可以选择耐受抗性桉树基因型用于疾病管理。

著录项

  • 来源
    《Plant Disease》 |2018年第10期|共13页
  • 作者

    Wen Wang; QianLi Liu; GuoQing Li; FeiFei Liu; ShuaiFei Chen;

  • 作者单位

    China Eucalypt Research Centre (CERC) Chinese Academy of Forestry (CAF) ZhanJiang 524022 GuangDong Province China;

    China Eucalypt Research Centre (CERC) Chinese Academy of Forestry (CAF) ZhanJiang 524022 GuangDong Province China;

    China Eucalypt Research Centre (CERC) Chinese Academy of Forestry (CAF) ZhanJiang 524022 GuangDong Province China;

    China Eucalypt Research Centre (CERC) Chinese Academy of Forestry (CAF) ZhanJiang 524022 GuangDong Province China;

    China Eucalypt Research Centre (CERC) Chinese Academy of Forestry (CAF) ZhanJiang 524022 GuangDong Province 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

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号