在Pinus koraiensis中,真菌动力学和基纤维素脱聚合:长角甲虫染的影响
Yue Zhu1, Sixun Ge1, Lili Ren2,3,4
1Beijing Key Laboratory for Forest Pest Control, Beijing Forestry University, No. 35 Qinghua East Road, Haidian District, Beijing, 10083, P. R. China.
BMC microbiology
|October 22, 2025
概括
昆虫感染破坏了森林真菌群落,减少了有益的纤维素分解真菌. 生物标志物发现确定了在Pinus koraiensis树上表明感染状态的真菌.
科学领域:
- 林业林业 林业 林业 林业
- 菌类学 菌类学是指菌类学.
- 昆虫生态学 昆虫生态学
背景情况:
- 像Monochamus saltuarius这样的食昆虫对森林生态系统构成重大威胁.
- M. saltuarius 作为松树线虫的载体,是松树物种的木材破坏性害虫.
- 在M. saltuarius和其宿主Pinus koraiensis之间的真菌相互作用还不太清楚.
研究的目的:
- 为了描述由M. saltuarius.感染的Pinus koraiensis中的真菌群落.
- 识别具有林氏纤维素去聚合潜力的内菌并评估它们的酶活性.
- 探索生态变化,并确定与M. saltuarius感染相关的诊断性真菌种群.
主要方法:
- 高通量测序用于分析感染和未感染树木中的真菌群落.
- 对已识别的内性真菌的酶活性进行实验评估.
- 综合生物标志物发现使用随机森林和LEfSe分析.
主要成果:
- M. saltuarius的感染显著减少了Pinus koraiensis的真菌多样性.
- 受感染的样本显示,纤维素分解菌的数量减少,植物病原体的数量增加.
- 生物标志物分析确定了在未感染的组织中丰富的真菌种类,可能参与纤维素蛋白降解.
结论:
- M. saltuarius感染破坏了本地真菌群落,影响了森林的健康.
- 已识别的真菌生物标志物可以表明感染状态,并提供有关宿主-微生物-昆虫相互作用的见解.
- 本研究提供了一种基于模型的方法,通过真菌社区分析来检测森林生态系统中的害虫影响.
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