• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Bio- guided isolation of plant growth regulators from allelopathic plant- Codonopsis pilosula: phyto- selective activities and mechanisms
【24h】

Bio- guided isolation of plant growth regulators from allelopathic plant- Codonopsis pilosula: phyto- selective activities and mechanisms

机译：生物引导植物生长调节剂的分离植物 - Codonopsis pilosula：Phyto-ofter选择性和机制

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

Natural pesticides are the subject of growing interest, as the overuse of synthetic pesticides severely threatens the safety of humans and the eco-environment. Allelopathic plants can release plentiful secondary metabolites as natural plant growth regulators to affect the growth of neighboring plants. Bio-guided isolation of the aerial waste part of typical allelopathic plant-Codonopsis pilosula led to six active compounds being produced, including ginsenoside Rg(1) (1), ginsenoside Re (2), luteolin (3), luteolin-5-O-glucoside (4), ginsenoside Rb-1 (5) and lobetyolin (6). Ginsenosides and luteolin-5-O-glucoside were firstly found in Codonopsis. Phyto-activity tests showed that all compounds showed inhibiting effects toward C. pilosula, and compounds 2, 4, 5 and 6 were also inhibitors of Amaranthus retroflexus. By contrast, the compounds promoted the seedling growth of wheat, rice and Setaria viridis. At certain concentrations, compounds 1, 4, 5 and 1, 2, 4 could observably promote the growth of wheat and rice seedlings, respectively, exceeding Setaria viridis. The different effects toward the two weeds might be related to the different ROS levels induced by the compounds. The ROS amounts in the root tips of S. viridis were as low as those in the control test, and the ROS content in the root tips increased with aggravation of the inhibition effect. In summary, successful isolation of phyto-selective chemicals from allelopathic plants may provide a promising method for natural herbicide screening. The compounds isolated could potentially be applied as inhibitors of dicotyledon weeds and promoters of monocotyledon crops for weed management in agriculture.
机译：天然农药是兴趣日益增长的主题，因为合成农药的过度使用严重威胁人类和生态环境的安全性。异化植物可以释放丰富的次级代谢产物作为天然植物生长调节剂，以影响邻近植物的生长。生物引导隔离典型化感染植物 - Codonopsis pilosula的空中废物部分LED为六种活性化合物，包括人参皂苷Rg（1）（1），人参皂苷Re（2），木犀草蛋白（3），叶黄素-5-O -Glucoside（4），人参皂苷RB-1（5）和Lobetyolin（6）。首先在Codonopsis中发现人参皂苷和葡萄黄素-5-O-葡糖苷。 Phyto-Activity试验表明，所有化合物都显示出抑制抑制对C. pilosula的影响，以及化合物2,4,5和6也是Amaranthus Retroflexus的抑制剂。相比之下，该化合物促进了小麦，水稻和跖跖的幼苗生长。在某些浓度下，化合物1,4,5和1,2,4分别可观察地促进小麦和水稻幼苗的生长超过Setaria Viridis。对两种杂草的不同效果可能与化合物诱导的不同ROS水平有关。 S.Viridis的根尖中的ROS量与对照测试中的那些低，并且根尖中的ROS含量随着抑制效果的恶化而增加。总之，成功地分离来自化感植物的植物选择性化学品可以为天然除草剂筛选提供有希望的方法。分离的化合物可能潜在地应用于农业中杂草管理的单圈杂草和单子叶作物的启动子的抑制剂。

著录项

  • 来源
    《RSC Advances》 |2018年第25期|共7页
  • 作者

    Xie Min; Liu Jingkun; Yan Zhiqiang; Li Xiuzhuang; Yang Xiaoyan; Jin Hui; Su Anxiang; Qin Bo;

  • 作者单位

    Chinese Acad Sci CAS Key Lab Chem Northwestern Plant Resources Key Lab Nat Med Gansu Prov Lanzhou Inst Chem Phys Lanzhou 730000 Gansu Peoples R China;

    Chinese Acad Sci CAS Key Lab Chem Northwestern Plant Resources Key Lab Nat Med Gansu Prov Lanzhou Inst Chem Phys Lanzhou 730000 Gansu Peoples R China;

    Chinese Acad Sci CAS Key Lab Chem Northwestern Plant Resources Key Lab Nat Med Gansu Prov Lanzhou Inst Chem Phys Lanzhou 730000 Gansu Peoples R China;

    Chinese Acad Sci CAS Key Lab Chem Northwestern Plant Resources Key Lab Nat Med Gansu Prov Lanzhou Inst Chem Phys Lanzhou 730000 Gansu Peoples R China;

    Chinese Acad Sci CAS Key Lab Chem Northwestern Plant Resources Key Lab Nat Med Gansu Prov Lanzhou Inst Chem Phys Lanzhou 730000 Gansu Peoples R China;

    Chinese Acad Sci CAS Key Lab Chem Northwestern Plant Resources Key Lab Nat Med Gansu Prov Lanzhou Inst Chem Phys Lanzhou 730000 Gansu Peoples R China;

    Minist Agr ICAMA Inst Control Agrochem Beijing 100125 Peoples R China;

    Chinese Acad Sci CAS Key Lab Chem Northwestern Plant Resources Key Lab Nat Med Gansu Prov Lanzhou Inst Chem Phys Lanzhou 730000 Gansu Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 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