首页 | 本刊简介 | 编委会 | 投稿征稿 | 期刊订阅 | 下载中心 | English
 
   
  论文快速检索

请输入关键词

 

 

   
  信息公告
海外撷英栏目开通,欢迎投稿

热带亚热带植物学报网络开通

访问总次数
14671663
今日访问
3446
当前在线
0人
 
引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 2867次   下载 1510 本文二维码信息
码上扫一扫!
分享到: 微信 更多
碎米莎草茎总生物碱对植物和病原菌的生物活性
周兵1, 曾建国2, 闫小红1, 蒋平1, 刘国伟1
1.井冈山大学生命科学学院;2.吉安市林业局
摘要:  以水稻(Oryza sativa)等5种植物和水稻稻瘟病(Magnaporthe grisea)等6种植物病原真菌为试验对象,测定了碎米莎草(Cyperus iria)茎总生物碱对植物和病原菌的生物活性。结果表明,250~4 000 μg mL-1的总生物碱对水稻种子的萌发无显著影响,对千金子(Leptochloa chinensis)幼苗的苗高有显著抑制作用。4 000 μg mL-1的总生物碱对烟草(Nicotiana tabacum)、鳢肠(Eclipta prostrate)和车前草(Plantago asiatica)种子的萌发,烟草幼苗的苗高以及水稻、烟草和鳢肠幼苗的鲜重有显著抑制作用,相对较低浓度总生物碱对千金子种子萌发、千金子和车前草幼苗的鲜重以及5种植物幼苗的根长和苗高(烟草幼苗的苗高除外)有显著抑制作用。25~400 μg mL-1的碎米莎草茎总生物碱对小麦赤霉病菌(Fusarium graminearum)的生长无显著影响,而对苹果轮纹病菌(Physalospora piricola)的生长有显著抑制作用,100~400 μg mL-1的总生物碱对稻瘟病菌、油菜菌核病菌(Sclerotinia sclerotiovum)和番茄早疫病菌(Alternaria solani)的生长有显著抑制作用,200~400 μg mL-1的总生物碱对杨树溃疡病菌(Dothiorella gregaria)的生长有显著抑制作用,400 μg mL-1的总生物碱对上述病原真菌的抑菌率分别为8.20%、74.87%、40.93%、60.91%、52.70%和16.28%。
关键词:  碎米莎草  总生物碱  植物活性  抑菌活性
DOI:10.3969/j.issn.1005-3395.2010.3.2402
分类号:
基金项目:江西省教育厅科技计划项目(GJJ08421);井冈山大学博士科研启动项目(0716)
Phytoactivity and Antifungal Activity of Total Alkaloids from Stem of Cyperus iria
ZHOU Bing1, ZENG Jian-guo2, YAN Xiao-hong1, JIANG Ping1, LIU Guo-wei1
1.College of Life Science, Jinggangshan University;2.Ji'an Forestry Administration
Abstract:  The phytoactivity of toal alkaloids from stem of Cyperus iria to Oryza sativa, Nicotiana tabacum, Plantago asiatica, Eclipta prostrate, Leptochloa chinensis and antifungal activity against Magnaporthe grisea, Sclerotinia sclerotiovum, Alternaria solani, Fusarium graminearum, Dothiorella gregaria and Physalospora piricola were measured. The results showed that 250~4 000 μg mL-1 total alkaloids had not significant influence in seed germination of O. sativa, but significantly inhibited in seedling height of L. chinensis. Seed germination of N. tabacum, E. prostrate and P. asiatica, seedling height of N. tabacum, seedling fresh weight of O. sativa, N. tabacum and E. prostrate were significantly inhibited treated with 4 000 μg mL-1 total alkaloids. The total alkaloids of low concentrations significantly inhibited in seed germination of L. chinensis, seedling fresh weight of L. chinensis and P. asiatica, seedling root length and height of five species except of seedling height of N. tabacum. However, 25~400 μg mL-1 total alkaloids had no significant inhibition to the growth of F. graminearum, but had to the growth of P. piricola, and 100~400 μg mL-1 total alkaloids had significant inhibition to M. grisea, S. sclerotiovum and A. solani, while did 200~400 μg mL-1 total alkaloids to D. gregariaat, the growth of six fungi were significantly inhibited treated with 400 μg mL-1 total alkaloids, the inhibitory rates were 8.20%, 74.87%, 40.93%, 60.91%, 52.70% and 16.28%, respectively.
Key words:  Cyperus iria  Total alkaloids  Phytoactivity  Antifungal activity

Copyright 2007 版权所有 中国科学院华南植物园《热带亚热带植物学报》编辑部
地址: 广州市天河区兴科路723号 中国科学院华南植物园 《热带亚热带植物学报》编辑部 邮编:510650 电话: 86 (0)20-3725 2514  传真:86 (0)20-3725 2642 E-mail: jtsb@scib.ac.cn
本系统由北京勤云科技发展有限公司设计
京ICP备09084417号-2