"Trichoderma viride"对树枝球微生物群落的影响以及大豆根腐的生物控制
Peixin Gao1, Kai Qi1, Yujuan Han2
1Shandong Key Laboratory of Plant Virology, Institution of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China.
Frontiers in microbiology
|June 19, 2023
概括
用Trichoderma viride进行的生物种子修饰有效地减少了大豆根腐烂,类似于化学杀菌剂. 这种有益的真菌还支持更健康的土壤微生物群落和网络稳定性.
科学领域:
- 农业微生物学 农业微生物学
- 植物病理学 植物病理学
- 土壤科学 土壤科学
背景情况:
- 生物种子连接是一种具有成本效益的方法,用于保护植物根源免受病原体的侵害.
- 三体物种被广泛用作生物种子料,但它们对树根球微生物群落的影响需要进一步调查.
- 大豆根腐对作物产量构成重大威胁,需要有效和可持续的管理策略.
研究的目的:
- 调查Trichoderma viride和一种化学杀菌剂对大豆根球土壤中微生物社区结构的影响.
- 为了比较T. viride和化学杀菌剂在减少大豆根腐病指数方面的有效性.
- 评估T. viride和化学杀菌剂对树枝球微生物共发生网络的复杂性和稳定性的影响.
主要方法:
- 使用高通量测序来分析大豆根球土壤中的微生物群体组成.
- 大豆植物被用T. viride,一种化学杀菌剂处理,或作为对照.
- 分析了疾病指数,微生物社区结构和共发生网络属性.
主要成果:
- 无论是T. viride还是化学杀菌剂,都显著降低了大豆疾病指数,两种治疗方法之间没有显著差异.
- 这两种治疗都改变了树根球微生物群落结构,增加了β-多样性并减少了Saprotroph-Symbiotroph的相对丰度.
- T. viride增强了微生物共发生网络的复杂性和稳定性,而化学真菌杀菌剂降低了这些参数. 几种细菌和真菌属与疾病严重程度相关.
结论:
- 三虫是一种可行的替代化学杀菌剂,用于控制大豆根腐烂,具有相似的疗效.
- T. viride通过促进微生物群落多样性和网络稳定性,对土壤微生态产生积极影响.
- 这项研究强调了T. viride作为一种可持续和环保的豆疾病管理方法的潜力.
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