FU Yao,LI Jing,ZHANG Zi-an,et al.Separation and Identification of Bacillus sp.Antagonistic to Soybean Cyst Nematode[J].HEILONGJIANG AGRICULTURAL SCIENCES,2022,(02):36-40.[doi:DOI:10.11942/j.issn1002-2767.2022.02.0036]
一株抗大豆胞囊线虫芽孢杆菌的分离鉴定
- Title:
- Separation and Identification of Bacillus sp.Antagonistic to Soybean Cyst Nematode
- Keywords:
- Heterodera glycines; Bacillus; seperation; identification
- 文献标志码:
- A
- 摘要:
- 为了筛选用作防治大豆胞囊线虫的微生态制剂的益生菌,从大豆根围土中分离芽孢杆菌Bal-7,并测定其发酵液对大豆胞囊线虫2龄幼虫活性的影响。结合形态学、生理生化特征及16S rRNA基因序列比对分析对菌株进行鉴定。结果表明:分离筛选的芽孢杆菌Ba1-7发酵液对大豆胞囊线虫2龄幼虫校正死亡率为83.32%,经分子生物学鉴定菌株Ba1-7为阿氏芽孢杆菌(Bacillus aryabhattai)。菌株Ba1-7可用作防治大豆胞囊线虫的生防菌剂。
- Abstract:
- In order to screen biocontrol strains against soybean cyst nematode,Bacillus Ba1-7 was isolated from soybean rhizosphere soil,identified by morphological,physiological and biochemical characteristics and 16S rRNA gene sequence alignment analysis.The inhibition rate of the fermentation of the strain Ba1-7 on soybean cyst nematode were determined.The results showed that the isolated and screened Ba1-7 was Bacillus aryabhattai.The correted mortality rate of the Ba1-7 fermentation on the hatching of J2 was 83.32%.Strain Ba1-7 can be used as a biocontrol agent against soybean cyst nematode.
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备注/Memo
收稿日期:2021-11-13
基金项目:黑龙江省大学生创新创业训练计划(202010223105);大庆市指导性科技计划(zd-2021-72)。
第一作者:符堯(1999-),女,本科生,专业为植物保护。E-mail:1067603370@qq.com。
通信作者:周园园(1988-),女,博士,讲师,从事植物保护相关研究。E-mail:zhouyuanyuan6616@163.com。