...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta Horticulturae >Evaluation of Musa spp for susceptibility to nematodes and study of resistance mechanisms.
【24h】

Evaluation of Musa spp for susceptibility to nematodes and study of resistance mechanisms.

机译：评估Musa spp对线虫的易感性并研究其抗性机制。

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

Radopholus similis is a major cause of yield decline of banana and plantains worldwide. Musa germplasm was evaluated to find sources of resistance to this nematode. Investigations were also conducted to identify the mechanisms of resistance in resistant accessions. Both triploids and diploids were evaluated in pots on sterile substrate. The accessions were compared to the resistant banana Yangambi Km5 (Ibota, AAA) and the susceptible plantain French Sombre (AAB). Two months after inoculation with 1000 R. similis per plant, the plants were harvested and their root systems were observed for nematode populations. Results indicated that most of the diploids were susceptible to R. similis. The diploid banana M. acuminata banksii (AA) were comparable tothe susceptible standard in their level of susceptibility to R. similis. Most of the accessions from M. balbisiana (BB) and some diploid bananas (AA) were comparable to the resistant standard Yangambi Km5. Plantains and East African bananas (Lugijura, AAA) were very susceptible. Cavendish bananas (AAA) were slightly less susceptible than East African bananas and plantains. Other Ibota bananas were resistant. Study of the mechanisms of resistance revealed no difference in the penetration rate of R. similis between Yangambi Km5 and French Sombre, however, the multiplication rate was significantly lower on Yangambi Km5. Histochemical studies indicated that phenols may play a role in the resistance of Musa to R. similis.
机译：Radopholus similis是导致全世界香蕉和大蕉产量下降的主要原因。对Musa种质进行了评估，以寻找对该线虫的抗药性来源。还进行了研究以鉴定抗性种质中的抗性机制。三倍体和二倍体均在无菌底物上的盆中进行评估。将这些种与抗性香蕉Yangambi Km5（Ibota，AAA）和易感的车前草法国松布（AAB）进行了比较。每株植物接种1000 simR。similis两个月后，收获植物并观察其根系的线虫种群。结果表明，大多数二倍体均对拟南芥敏感。二倍体香蕉M. acuminata bankii（AA）的易感性水平与易感标准相当。 balbisiana（BB）和一些二倍体香蕉（AA）的大部分保藏物均与抗性标准Yangambi Km5相当。车前草和东非香蕉（Lugijura，AAA）非常易感。卡文迪许香蕉（AAA）的敏感性比东非香蕉和大蕉小。其他伊博达香蕉具有抗性。对抗药性机理的研究表明，扬比亚克Km5和法国松柏在R. similis的穿透率上没有差异，但是，扬比亚比Km5的繁殖率明显较低。组织化学研究表明，酚类可能在Musa对similis的抗性中起作用。

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