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The decomposition of ectomycorrhizal fungal necromass
Fernandez C. W.; Langley, J. A.; Chapman, S.; Mccormack, M. L.; Koide, R. T.
Source PublicationSoil Biology & Biochemistry
2016
Volume93
Pages38-49
KeywordCarbon cycle Decomposition Ectomycorrhizal fungi Soil organic matter Necromass Nitrogen cycle soil organic-matter leaf-litter decomposition cell-wall carbon sequestration forest soils cenococcum-geophilum nitrogen deposition microbial community mycorrhizal fungi boreal forests
AbstractThe turnover of ectomycorrhizal (EM) fungal biomass represents a significant input into forest carbon (C) and nutrient cycles. Given the size of these fluxes, understanding the factors that control the decomposition of this necromass will greatly improve understanding of C and nutrient cycling in ecosystems. Recent research has highlighted the considerable variation in the decomposition rates of EM fungal necromass, and patterns from this research are beginning to emerge. In this article we review the research that has examined both intrinsic and extrinsic factors that control the decomposition of EM fungal necromass and propose additional factors that may strongly influence EM fungal necromass decomposition and ecosystem properties. We argue that, as with most plant litters, the stoichiometry (C:N) of EM necromass is an important factor governing decomposition, but its role is modulated by the nature of the C and N in the tissue. In particular, melanin concentration appears to negatively influence the quality of EM fungal necromass much as lignin does in plant litters. Other intrinsic factors such as the morphology of the mycelium may also play a large role and suggest this as a focus for future research. Extrinsic factors, such as decomposer community activity and physical protection by soil, are also likely to be important in governing the decomposition of ectomycorrhizal necromass in situ. Finally, we highlight the potential importance of EM fungal necromass diversity and abundance in influencing terrestrial biogeochemical cycles. Understanding the factors that control the decomposition of EM necromass will then improve the predictive power of next-generation terrestrial biosphere models. (C) 2015 Elsevier Ltd. All rights reserved.
Indexed BySCI
Language英语
ISSN0038-0717
DOI10.1016/j.soilbio.2015.10.017
Citation statistics
Cited Times:72[WOS]   [WOS Record]     [Related Records in WOS]
Document TypeSCI/SSCI论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/42936
Collection历年回溯文献
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Fernandez C. W.,Langley, J. A.,Chapman, S.,et al. The decomposition of ectomycorrhizal fungal necromass. 2016.
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