...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Mycologia >The development and differentiation of Gibberella zeae (anamorph : Fusarium graminearum) during colonization of wheat
【24h】

The development and differentiation of Gibberella zeae (anamorph : Fusarium graminearum) during colonization of wheat

机译：小麦定居期间玉米赤霉菌（无性菌：禾谷镰刀菌）的发育和分化

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

Worldwide, one of the most devastating pathogens of small grains is the head blight fungus, Gibberella zeae. Ascospore-laden perithecia of this fungus develop on mature cereal crops and crop debris and provide the primary inoculum of the disease. We characterize the process of colonization of wheat tissue that leads to perithecium production. Stems were colonized systemically and extensively following inoculation of the wheat head. Haploid mycelia moved down the vascular system and pith and then colonized the stem tissue radially. Dikaryotic hyphae developed at two distinct stages: in the xylem, in support of radial hyphal growth and in the chloremchyma, in support of perithecium development. Perithecium formation was initiated in association with stomates and silica cells. Vascular occlusions prevented mycelia from colonizing the stem in 25% of inoculated plants. Implications of these findings are discussed for developing resistant cultivars and improving chemical control of the disease.
机译：在世界范围内，小粒谷物中最具破坏力的病原体之一是赤霉病菌（Gibberella zeae）。这种真菌的富含子孢子的皮膜病可在成熟的谷物作物和农作物碎片上生长，并提供该病的主要接种物。我们表征了导致包皮产生的小麦组织的定殖过程。接种小麦头后，茎被系统地和广泛地定殖。单倍体菌丝体向下移动到血管系统和髓，然后沿径向移居干组织。双核菌丝在两个不同的阶段发育：在木质部中，支持放射状菌丝的生长;在绒毛膜间质瘤中，支持皮膜的发育。包膜和硅石细胞共同引发了包膜的形成。血管阻塞阻止了菌丝体在25％的接种植物中定植于茎中。讨论了这些发现对开发抗病品种和改善疾病的化学控制的意义。

著录项

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