Effect of stand thinning, former land use and individual tree parameters on wood inhabiting fungal community composition in young living Norway spruce

IF 1.9 3区环境科学与生态学 Q3 ECOLOGY Fungal Ecology Pub Date : 2023-10-01 DOI:10.1016/j.funeco.2023.101281

Darta Klavina , Leho Tedersoo , Ahto Agan , Astra Zaluma , Kriss Bitenieks , Kaspars Polmanis , Mudrite Daugaviete , Talis Gaitnieks , Rein Drenkhan

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Abstract

We investigated the wood fungal community composition in stems of living Norway spruce (Picea abies (L.) Karst.) trees in 20–40 year-old forest stands from Latvia that differed in recent management history (stands with or without thinning) and former land use (former agricultural or former forest lands). Fungal internal transcribed spacer (ITS2) amplicons of DNA extracted from wood were sequenced to assess wood fungal communities. Alternaria, Ascocoryne, Didymella, Heterobasidion, Ophiostoma, Orbilia, Pesotum, Phoma and Pseudocercosporella were the dominant wood pathogen and wood saprotroph genera in the analysed samples. PERMANOVA analysis identified some differences in fungal communities among site types analysed (p < 0.001); tree height and presence/absence of rot in the wood samples (mainly Heterobasidion rot) significantly influenced fungal community composition (p < 0.001). Significant negative co-occurrence (p < 0.05) was observed between Heterobasidion and Ascocoryne genera indicating the differing wood colonizing niches of these taxa. Both stand level factors, such as management history and former land use, and tree level parameters are significant for wood inhabiting fungal communities of living spruces.

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林分间伐、原土地利用和单株参数对挪威云杉幼木寄生真菌群落组成的影响

我们调查了活的挪威云杉（Picea abies（L.）Karst.）树干中的木材真菌群落组成拉脱维亚20–40年树龄的林分中的树木，这些林分在最近的管理历史（有或没有疏伐的林分）和以前的土地使用（以前的农业或以前的林地）上有所不同。对从木材中提取的DNA的真菌内部转录间隔区（ITS2）扩增子进行测序，以评估木材真菌群落。Alternaria、Ascoryne、Didymela、Heterobasidion、Ophiostoma、Orbilia、Pesotum、Phoma和Pseudocercosporella是分析样品中的主要木材病原体和木材腐生物属。PERMANOVA分析确定了所分析的位点类型之间真菌群落的一些差异（p＜0.001）；树木高度和木材样品中是否存在腐烂（主要是异担子菌腐烂）显著影响真菌群落组成（p＜0.001）。异担子虫属和Ascoryne属之间观察到显著的负共生（p＜0.05），表明这些分类群的木材定殖生态位不同。林分水平的因素，如管理历史和以前的土地利用，以及树木水平的参数，都对生活云杉的木材真菌群落具有重要意义。

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来源期刊

Fungal Ecology 环境科学-生态学

CiteScore

5.80

自引率

3.40%

发文量

审稿时长

3 months

期刊介绍： Fungal Ecology publishes investigations into all aspects of fungal ecology, including the following (not exclusive): population dynamics; adaptation; evolution; role in ecosystem functioning, nutrient cycling, decomposition, carbon allocation; ecophysiology; intra- and inter-specific mycelial interactions, fungus-plant (pathogens, mycorrhizas, lichens, endophytes), fungus-invertebrate and fungus-microbe interaction; genomics and (evolutionary) genetics; conservation and biodiversity; remote sensing; bioremediation and biodegradation; quantitative and computational aspects - modelling, indicators, complexity, informatics. The usual prerequisites for publication will be originality, clarity, and significance as relevant to a better understanding of the ecology of fungi.