首页|3株内生真菌对沙柳溃疡病病原菌的拮抗作用研究

3株内生真菌对沙柳溃疡病病原菌的拮抗作用研究

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为探究沙地云杉(Picea meyeri var.mongolica)内生真菌(Endophytic fungi)对沙柳溃疡病病原菌茶藨子葡萄座腔菌(Botryosphaeria ribis)的抑菌作用,本研究选择互隔链格孢菌(Alter-naria alternata)、三线镰刀菌(Fusarium tricinctum)、产黄青霉菌(Penicillium chrysogenum)3种沙地云杉内生真菌作为试验材料,以沙柳溃疡病病原菌茶藨子葡萄座腔菌为目标菌,采用平板对峙法、生长速率法、双皿对扣法探究内生真菌对沙柳溃疡病病原菌的抑菌活性.结果表明:3株内生真菌均表现出良好的抑菌效果,菌株SDYS95产黄青霉菌的抑菌作用最好,抑菌率可达81.32%,其发酵液抑菌率可达22.29%,挥发性代谢产物抑菌率可达16.39%.为利用内生真菌及其代谢产物替代化学农药,保护北沙柳(Salix psammophila)资源提供参考.
Antagonistic Effect of Three Endophytic Fungi on Canker Pathogen of Salix psammophila
In order to explore the antibacterial effect of endophytic bacteria of Picea meyeri var.mongolica on the pathogen Botryosphaeria ribis,in this research,three endophytic fungi of Picea meyeri var.mongolica,namely Al-ternaria alternata,Fusarium tricinctum and Penicillium chrysogenum,were selected as the experimental materials,taking Botryosphaeria ribis,the antibacterial activity of endophytic fungi against the pathogenic bacteria of Botryos-phaeria ribis,was studied by using plate method,growth rate method,and fermentation broth culture method.The results showed that all three endophytic strains showed good bacteriostatic effects,the bacterium SDYS95(Penicil-lium chrysogenum)had the best antibacterial activity,and the bacteriostatic rate was up to 81.32%,the bacterio-static rate of fermentation fluid was up to 22.29%,and the bacteriostatic rate of volatile metabolites was up to 16.39%.It provided references for using endophytic fungi and their metabolites to replace chemical pesticides and protect the resource of Salix psammophila.

Picea meyeri var.mongolicaEndophytic fungiBotryosphaeria ribisantagonistic effectsbiocontrol

兰佳贺、姜海燕、吴云菊、党海龙、蒋萌萌、房钰欣

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内蒙古农业大学 林学院,内蒙古 呼和浩特 010019

呼和浩特市林业和草原局玉泉分局,内蒙古 呼和浩特 010040

呼和浩特市林业和草原局赛罕分局,内蒙古 呼和浩特 010010

沙地云杉 内生真菌 沙柳溃疡病 拮抗作用 生物防治

满洲里市草原有害生物及林业湿地外来有害生物普查采购项目呼和浩特市草原有害生物及森林、草原、湿地外来入侵物种普查技术服务项目内蒙古大学生创新创业项目内蒙古自治区2022年科学技术协会科普作品资助项目

MZL-QY-22015FHYXFW2023-03001202210129029

2024

内蒙古林业科技
内蒙古林业科学研究院

内蒙古林业科技

影响因子：0.283
ISSN：1007-4066
年,卷(期)：2024.50(2)
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