描述两种潜在的生物控制菌株对抗玉米烂的细菌菌株
Zhiwei Feng1, Mengyao Qin2, Xiaobing Ma2
1Key Laboratory of Sustainable Dryland Agriculture of Shanxi Province, Shanxi Agricultural University, Taiyuan 030031, China.
Microorganisms
|October 29, 2025
概括
两个Bacillus菌株,B. subtilis KP3P9和B. siamensis K13C,显示出对抗玉米茎腐烂的生物控制剂的潜力. 它们促进植物生长,抑制真菌病原体,提供一个环保的疾病管理策略.
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:
- 玉米茎腐烂 (MSR) 是对玉米生产的重大全球威胁.
- 生物控制剂提供了一个环境可持续的方法来管理MSR.
研究的目的:
- 评估两种细菌菌株B. subtilis KP3P9和B. siamensis K13C作为抗MSR生物控制剂的疗效.
- 评估它们的植物生长促进能力和对其他真菌病原体的抗作用.
主要方法:
- 在体外抑制对Fusarium graminearum的测试.
- 盆栽实验评估植物生长促进和抗病能力.
- 全基因组测序 (牛津纳米孔和Illumina) 以确定生物合成基因集群.
- 在体外对F. solani和Fusarium oxysporum f. sp.的对抗性测试. 这是一个古巴人. cubense. cubense.
主要成果:
- 无论是B. subtilis KP3P9还是B. siamensis K13C都在体外显著抑制了F. graminearum的生长.
- KP3P9提高了玉米植物的高度和重量;K13C改善了茎和根的重量.
- 这两种菌株都降低了MSR疾病的严重程度,并对其他Fusarium物种表现出广泛的对抗性.
结论:
- B. subtilis KP3P9和B. siamensis K13C是MSR的有效生物控制剂.
- 这些菌株具有促进植物生长的特征,可用于管理其他重要的类植物相关植物疾病.
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