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确定影响户外结构木材微生物群落组成的环境因素

Lauritz Schrader¹, Jochen Trautner¹, Christoph C Tebbe²

¹Thünen Institute of Wood Research, Leuschnerstraße 91, 21031, Hamburg, Germany.

Applied microbiology and biotechnology

|March 6, 2024

概括

这项研究揭示了外部木材上的真菌和细菌群落,特定物种如Perenniporia meridionalis与损伤有关. 树木物种和环境对微生物组成有重大影响,但碳/含量没有.

科学领域:

环境微生物学环境微生物学
木材科学木材科学木材科学
菌类学菌类学是指菌类学.

背景情况:

木材对微生物降解的敏感性限制了户外应用.
关于破坏外部结构木材的真菌的流行和多样性的知识有限.
了解这些微生物群落对于木材的耐用性至关重要.

研究的目的:

调查殖民外部结构木材的真菌和细菌社区组成.
确定影响微生物社区结构的关键环境因素.
为了将特定的微生物种类与木材退化的严重程度相关联.

主要方法:

从德国汉堡的46个腐烂木材样本中提取DNA.
菌ITS2和细菌16S rRNA基因的PCR扩增序列测序.
环境因素分析:木材种类,C/N含量,土壤接触和周围环境.

主要成果:

木材上的真菌和细菌社区类似于森林枯木中发现的真菌和细菌社区.
常年 (Perenniporia meridionalis) 和 (Dacrymyces) 的物种经常与严重的木材损伤有关.
树木物种是塑造真菌和细菌社区的主要因素;环境影响了真菌,而土壤接触影响了细菌.

结论:

树木物种对木材上的真菌和细菌群体都有很大的影响.
环境因素以不同的方式塑造了真菌 (周围环境) 和细菌 (与土壤接触) 社区.
室外木材的微生物降解是复杂的,受到木材内在特性和外在环境条件的影响.

关键词:

这种植物名为Perenniporia meridionalis.细菌群体的组成细菌群体的组成生物降解生物降解菌群体的组成菌群体的组成木材木材木材木材木材木材木材木材

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