气候变化领域集成服务门户(CCPortal): A group of ectomycorrhizal fungi restricts organic matter accumulation in boreal forest

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DOI	10.1111/ele.13746
	A group of ectomycorrhizal fungi restricts organic matter accumulation in boreal forest
	Lindahl B.D.; Kyaschenko J.; Varenius K.; Clemmensen K.E.; Dahlberg A.; Karltun E.; Stendahl J.
发表日期	2021
ISSN	1461023X
起始页码	1341
结束页码	1351
卷号	24 期号:7
英文摘要	Boreal forest soils are important global carbon sinks, with significant storage in the organic topsoil. Decomposition of these stocks requires oxidative enzymes, uniquely produced by fungi. Across Swedish boreal forests, we found that local carbon storage in the organic topsoil was 33% lower in the presence of a group of closely related species of ectomycorrhizal fungi – Cortinarius acutus s.l. This observation challenges the prevailing view that ectomycorrhizal fungi generally act to increase carbon storage in soils but supports the idea that certain ectomycorrhizal fungi can complement free-living decomposers, maintaining organic matter turnover, nutrient cycling and tree productivity under nutrient-poor conditions. The indication that a narrow group of fungi may exert a major influence on carbon cycling questions the prevailing dogma of functional redundancy among microbial decomposers. Cortinarius acutus s.l. responds negatively to stand-replacing disturbance, and associated population declines are likely to increase soil carbon sequestration while impeding long-term nutrient cycling. © 2021 The Authors. Ecology Letters published by John Wiley & Sons Ltd.
关键词	carbon sequestration decomposition functional guilds functional redundancy fungal communities metabarcoding mor layer nitrogen soil statistical modelling
英文关键词	boreal forest; carbon sequestration; carbon storage; decomposition; disturbance; ectomycorrhiza; inorganic matter; nutrient cycling; organic matter; soil carbon; topsoil; Cortinarius acutus; Matthiola; carbon; carbon sequestration; Cortinarius; forest; fungus; microbiology; mycorrhiza; soil; Sweden; taiga; Carbon; Carbon Sequestration; Cortinarius; Forests; Fungi; Mycorrhizae; Soil; Soil Microbiology; Sweden; Taiga
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204434
作者单位	Department of Soil and Environment, Swedish University of Agricultural Sciences, Uppsala, Sweden; Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
推荐引用方式 GB/T 7714	Lindahl B.D.,Kyaschenko J.,Varenius K.,et al. A group of ectomycorrhizal fungi restricts organic matter accumulation in boreal forest[J],2021,24(7).
APA	Lindahl B.D..,Kyaschenko J..,Varenius K..,Clemmensen K.E..,Dahlberg A..,...&Stendahl J..(2021).A group of ectomycorrhizal fungi restricts organic matter accumulation in boreal forest.Ecology Letters,24(7).
MLA	Lindahl B.D.,et al."A group of ectomycorrhizal fungi restricts organic matter accumulation in boreal forest".Ecology Letters 24.7(2021).