DOI: 10.1111/gcb.13238
论文题名: Experimental warming alters potential function of the fungal community in boreal forest
作者: Treseder K.K. ; Marusenko Y. ; Romero-Olivares A.L. ; Maltz M.R.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2016
卷: 22, 期: 10 起始页码: 3395
结束页码: 3404
语种: 英语
英文关键词: Alaska
; cellulose
; ectomycorrhizal fungi
; free-living filamentous fungi
; glucose
; hemicellulose
; lignin
; recalcitrant carbon
; taxonomic rank
; yeast
Scopus关键词: boreal forest
; carbon sequestration
; cellulose
; community response
; ecosystem function
; ectomycorrhiza
; functional change
; fungus
; global warming
; glucose
; lignin
; taxonomy
; Alaska
; United States
; Fungi
英文摘要: Fungal community composition often shifts in response to warmer temperatures, which might influence decomposition of recalcitrant carbon (C). We hypothesized that evolutionary trade-offs would enable recalcitrant C-using taxa to respond more positively to warming than would labile C-using taxa. Accordingly, we performed a warming experiment in an Alaskan boreal forest and examined changes in the prevalence of fungal taxa. In a complementary field trial, we characterized the ability of fungal taxa to use labile C (glucose), intermediate C (hemicellulose or cellulose), or recalcitrant C (lignin). We also assigned taxa to functional groups (e.g., free-living filamentous fungi, ectomycorrhizal fungi, and yeasts) based on taxonomic identity. We found that response to warming varied most among taxa at the order level, compared to other taxonomic ranks. Among orders, ability to use lignin was significantly related to increases in prevalence in response to warming. However, the relationship was weak, given that lignin use explained only 9% of the variability in warming responses. Functional groups also differed in warming responses. Specifically, free-living filamentous fungi and ectomycorrhizal fungi responded positively to warming, on average, but yeasts responded negatively. Overall, warming-induced shifts in fungal communities might be accompanied by an increased ability to break down recalcitrant C. This change in potential function may reduce soil C storage under global warming. © 2016 John Wiley & Sons Ltd 资助项目: We thank Y. Lu, J. Randerson, S. Allison, J. Lennon, J. Borneman, M. Allen, K. Singh, D. Coleman-Derr, F. Martin, C. Murat, and three anonymous reviewers for technical and intellectual contributions
; and Fort Greely and the U.S. Army for access to field sites. Financial support was provided by NSF DEB-1256896 and NSF EAR-1411942.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61283
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Ecology and Evolutionary Biology, University of California Irvine, Irvine, CA, United States
Recommended Citation:
Treseder K.K.,Marusenko Y.,Romero-Olivares A.L.,et al. Experimental warming alters potential function of the fungal community in boreal forest[J]. Global Change Biology,2016-01-01,22(10)