欢迎访问《植物保护学报》网站！

首页 | 期刊简介 |
编委会
编委会
青年编委会
| 道德声明 | 投稿指南 | 联系我们 | 期刊订阅 | English

五种挥发性化合物对土传病原真菌及线虫的生物活性

引用本文：苗建强,王猛,李秀环,杨法辉,刘峰.五种挥发性化合物对土传病原真菌及线虫的生物活性.植物保护学报,2012,39(6):561-566

DOI：

摘要点击次数:

全文下载次数:

作者	单位	E-mail
苗建强	山东农业大学植物保护学院, 农药毒理与应用技术省级重点实验室, 泰安 271018
王猛	山东农业大学植物保护学院, 农药毒理与应用技术省级重点实验室, 泰安 271018
李秀环	山东农业大学植物保护学院, 农药毒理与应用技术省级重点实验室, 泰安 271018
杨法辉	山东农业大学植物保护学院, 农药毒理与应用技术省级重点实验室, 泰安 271018
刘峰	山东农业大学植物保护学院, 农药毒理与应用技术省级重点实验室, 泰安 271018	fliu@sdau.edu.cn

中文摘要:为明确挥发性化合物反式-2-己烯醛、香茅醛、1-辛烯-3-醇、芳樟醇、1-戊烯-3-醇对土传病害及线虫病的防治潜力,采用密封盘菌丝生长速率法比较了挥发性化合物对辣椒疫霉等7种植物土传病原真菌、南方根结线虫和禾谷孢囊线虫的生物活性。反式-2-己烯醛和香茅醛的生物活性高于1-辛烯-3-醇、芳樟醇及1-戊烯-3-醇,21.0 μL/L反式-2-己烯醛处理能够完全抑制供试病原真菌菌丝的生长。10.5 μL/L反式-2-己烯醛或香茅醛处理对花生冠腐病菌孢子及棉花黄萎病菌色素的产生均有较强的抑制作用,且42.0 μL/L处理能够完全抑制黄瓜菌核病菌菌核的萌发。2.62 μL/L反式-2-己烯醛处理南方根结线虫和禾谷孢囊线虫的2龄幼虫,24 h的死亡率均为100%;2.62 μL/L香茅醛处理24 h的死亡率分别为95.4%和89.5%,而对照处理的死亡率分别为2.5%和3.0%。研究表明反式-2-己烯醛及香茅醛具有较好的熏蒸抑菌及杀线虫活性。

中文关键词:挥发性化合物土传病原菌线虫生物活性

Antifungal and nematicidal activities of five volatile compounds against soil-borne pathogenic fungi and nematodes

Author Name	Affiliation	E-mail
Miao Jianqiang	Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong Province, China
Wang Meng	Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong Province, China
Li Xiuhuan	Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong Province, China
Yang Fahui	Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong Province, China
Liu Feng	Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong Province, China	fliu@sdau.edu.cn

Abstract:In order to understand the antifungal and nematicidal activities of five volatile compounds as soil fumigants, trans-2-hexen-1-al, citronellal, linalool, 1-octen-3-ol, and 1-penten-3-ol, were tested for their activities against seven soil-borne pathogenic fungi and two nematodes, Meloidogyne incognita and Heterodera avenae in sealed dishes. Trans-2-hexen-1-al and citronellal showed relatively higher biological activities than linalool, 1-octen-3-ol, and 1-penten-3-ol. Trans-2-hexen-1-al could completely inhibit mycelium growth of pathogens at the concentration of 21.0 μL/L. Both of trans-2-hexen-1-al and citronellal with 10.5 μL/L could significantly inhibit the spores formation of Aspergillus niger and the pigment formation of Verticillium dahlliae, and at 42.0 μL/L they could completely inhibit the sclerotium germination of Sclerotina sclerotiorum. Trans-2-hexen-1-al (2.62 μL/L) induced a mortality of 100% to the 2nd instar larvae of both M.incognita and H.avenae when applied over 24 h, while citronellal (2.62 μL/L) induced a mortality of 95.4% and 89.5%, in contrast to the 2.5% and 3.0% mortality respectively in the control. The results showed that both of trans-2-hexen-1-al and citronellal possess strong fumigant antifungal and nematocide activities.

keywords:volatile compounds soil-borne pathogens nematode bioactivity

查看全文查看/发表评论下载PDF阅读器