DOI: 10.1016/j.foreco.2013.02.034
Scopus记录号: 2-s2.0-84884818705
论文题名: Tree species influence on microbial communities in litter and soil: Current knowledge and research needs
作者: Prescott C.E. ; Grayston S.J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 309 起始页码: 19
结束页码: 27
语种: 英语
英文关键词: Forest floor
; Litter
; Microorganisms
; Rhizosphere
; Soil
; Tree species
Scopus关键词: Forest floors
; Functional links
; Litter
; Microbial communities
; Mycorrhizal fungus
; Rhizosphere
; Soil microbial community
; Tree species
; Association reactions
; Bacteria
; F region
; Floors
; Fungi
; Microorganisms
; Soils
; Vehicles
; Forestry
; community composition
; exudation
; forest floor
; fungus
; knowledge
; leaf litter
; microbial community
; microbial ecology
; nutrient cycling
; prokaryote
; research work
; rhizosphere
; soil ecosystem
; soil microorganism
; Bacteria
; Forest Litter
; Forestry
; Fungi
; Microorganisms
; Rhizospheres
; Soil
; Species Identification
; Trees
; Vehicles
; Archaea
; Bacteria (microorganisms)
; Fungi
英文摘要: Microbial communities in litter and soil are the functional link through which the tree species occupying a site may alter rates of soil processes fundamental to nutrient cycling and carbon flux. Through differences in the nature of their litter, their mycorrhizal fungal associates and the exudates they release into the rhizo/mycorrhizosphere, different tree species may give rise to distinct microbial communities in litter and soil. We examine the evidence that tree species influence the composition of the microbial communities in decomposing litter, forest floors, soil and the rhizo/mycorrhizosphere. The microbial communities considered in this review include bacteria, archaea, fungi and both free-living and symbiotic organisms. There is evidence that distinct microbial communities develop on decomposing leaf litters of different tree species, however, given the well-documented succession of microbes on decomposing litter, comparisons amongst tree species of microbial communities in litters and forest floors at the same stage of decay are needed to definitively deduce the influence of tree species. Distinct microbial communities have been reported in forest floors under different tree species; differences are most pronounced in the F layer. Distinctions in microbial communities in mineral soil under different tree species have been determined in several common garden experiments. The main factors associated with differences in microbial communities in litter, forest floors and soil are the pH and base cation content of the litter and whether the trees are broadleaf or coniferous. Identified differences in microbial communities in the rhizospheres of different tree species are more likely to be differences in the mycorrhizospheres and hyphospheres, given the predominance of associations with mycorrhizal fungi. Distinct microbial communities have been identified in the mycorrhizosphere under different tree species; these are influenced both by the tree species and by the mycorrhizal fungi with which the tree associates. Heightened attention during sampling to ensure comparison of 'like with like' could improve our ability to distinguish influence of tree species in decomposing litter, forest floors and soil. A significant remaining challenge is characterizing exudates from different tree-mycorrhizal fungi associations and understanding interactions between mycorrhizal fungi and microbial communities in the hyphosphere. A complete tapestry of the linkages between tree species and soil microbial communities requires that we also weave in the effects of soil fauna. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66346
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forest and Conservation Sciences, Faculty of Forestry, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada
Recommended Citation:
Prescott C.E.,Grayston S.J.. Tree species influence on microbial communities in litter and soil: Current knowledge and research needs[J]. Forest Ecology and Management,2013-01-01,309