对抗性Trichoderma菌株的查以增强大豆生长
Na Yu1, Yijia Gao1, Feng Chang1
1Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China.
Journal of fungi (Basel, Switzerland)
|February 25, 2025
概括
这项研究确定了有效的Trichoderma菌株来控制大豆Fusarium wilt. 这些生物控制剂显著减少了疾病,促进了植物生长,并改善了土壤真菌的多样性.
科学领域:
- 农业科学 农业科学
- 植物病理学 植物病理学
- 微生物学 微生物学
背景情况:
- 由Fusarium物种引起的大豆根病对作物产量构成重大威胁.
- 使用有益微生物进行生物控制为化学处理提供了一个可持续的替代方案.
研究的目的:
- 隔离和选Trichoderma菌株对影响大豆的Fusarium物种的对抗活性.
- 评估选择的Trichoderma菌株在控制大豆Fusarium枯和促进植物生长方面的有效性.
主要方法:
- 从大豆根球中分离和选Trichoderma菌株,使用盘面对抗试验.
- 对有前途的Trichoderma分离物的分子鉴定.
- 温室和盆栽实验,以评估疾病控制和植物生长促进.
- 实地试验评估对大豆产量和土壤真菌多样性的影响.
主要成果:
- 隔离了37种对抗性Trichoderma菌株,显示47.57%72.86%的抑制作用对抗Fusarium oxysporum.
- 235T4菌株表现出最高的抑制率 (72.86%).
- 菌株223H16在实验中实现了83.78%的控制效率.
- 现场应用增加了大豆的数量和植物的高度.
- 应用Trichoderma可将Fusarium种群减少约50%,并增强了树根球真菌的多样性.
结论:
- 特里科德玛物种是有效的生物控制剂,可以对抗大豆Fusarium wilt.
- 精选的Trichoderma菌株增强大豆生长,产量和土壤健康.
- 用Trichoderma进行生物控制为管理大豆根病提供了一种可持续的战略.
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