大戟内生菌的抑菌活性及其与宿主相关性研究

应用生态学报 ›› 2005, Vol. 16 ›› Issue (7): 1290-1294.

大戟内生菌的抑菌活性及其与宿主相关性研究

戴传超^1,2, 余伯阳², 赵玉婷¹, 杨启银¹, 蒋继宏³

1. 南京师范大学生命科学学院, 江苏省资源生物技术重点实验室, 南京 210097;
2. 中国药科大学, 中药复方研究室, 南京210009;
3. 徐州师范大学, 江苏省药用植物生物技术重点实验室, 徐州 221116

收稿日期:2004-08-03 修回日期:2004-10-18 出版日期:2005-07-15 发布日期:2005-07-15
通讯作者: 戴传超,男,1970年生,博士,副教授,硕士生导师.主要从事真菌学和发酵工程研究,发表论文30余篇.Tel:025-83598729;E-mail:daichuanchao@njnu.edu.cn
基金资助:
中国科学院红壤生态站基金项目(2000-K-02)和江苏省药用植物生物技术重点实验室基金资助项目(KJS03079).

Correlation between inhibition activity of endophytic fungus from Euphorbia pekinensis and its host

DAI Chuanchao^1,2, YU Boyang², ZHAO Yuting¹, YANG Qiyin¹, JIANG Jihong ³

1. Jiangsu Key Laboratory for Bioresource Technology, Life Science College of Nanjing Normal University, Nanjing 210097, China;
2. Department of Complex Recipe of CMM, China Pharmaceutical University, Nanjing 210009, China;
3. Jiangsu Key Laboratory for Medicinal Plant Biotechnology, Xuzhou Normal University, Xuzhou 221116, China

Received:2004-08-03 Revised:2004-10-18 Online:2005-07-15 Published:2005-07-15

摘要/Abstract

摘要： 为了开发利用药用植物的内生菌资源,以大戟和其内生真菌作为材料,以一株乌桕来源的内生菌作为对照,研究自身具有抑菌作用的药用植物的内生菌在抑菌作用上和宿主的相关性.结果表明,大戟内生菌镰刀菌E5有抑制宿主受试病原菌的作用,并在活植物体内表现出对受试病原菌的拮抗作用;其抑菌能力受宿主成分刺激而加强,而宿主成分对受试病原菌无抑制作用,乌桕来源的内生菌链隔孢S12无抑制受试病原菌的作用.内生菌E5需要在氧气充足条件下培养才能产生抑菌作用,抑菌活性最大产生时间和生物量最大值不同时出现.内生菌E5的抑菌能力受到pH、温度、紫外线影响.大戟内生菌E以上特点,体现了其与宿主之间的互惠共生关系.

关键词: 内生真菌, 抑菌作用, 相关性, 大戟, 互惠共生

Abstract: To develop endophytic fungi resources from medicinal plants,this paper studied the correlation between endophytic fungus Fusariium sp.E5 from Euphorbia pekinensis and its host through analyzing the inhibition activity of this pathogen.An endophytic strain S12 (Alternaria sp.) from Sapium sebiferum was used as contrast.The results showed that E5 had an inhibitory effect on the host,while S12 and E.pekinensis extract didn't have it.The inhibition activity of E5 could be stimulated by the extract of host leaf,and its inhibitory effect could only be found when it was cultured with enough oxygen.The inhibition activity was affected by pH,temperature,and ultra-violet.These characters of endophytic fungus E5 showed a good correlation with its host,and this correlation was mutualism.

Key words: Endophytic fungi, Bacteriostasis, Correlation, Euphorbia pekinensis, Mutualism

中图分类号:

Q936

戴传超, 余伯阳, 赵玉婷, 杨启银, 蒋继宏. 大戟内生菌的抑菌活性及其与宿主相关性研究[J]. 应用生态学报, 2005, 16(7): 1290-1294.

DAI Chuanchao, YU Boyang, ZHAO Yuting, YANG Qiyin, JIANG Jihong . Correlation between inhibition activity of endophytic fungus from Euphorbia pekinensis and its host[J]. Chinese Journal of Applied Ecology, 2005, 16(7): 1290-1294.

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