Ectomycorrhizal community composition and function in a spruce forest transitioning between nitrogen and phosphorus limitation

被引：44

作者：

Almeida, Juan Pablo ^{[1
]}

Rosenstock, Nicholas P. ^{[2
]}

Forsmark, Benjamin ^{[3
]}

Bergh, Johan ^{[4
]}

Wallander, Hakan ^{[1
]}

机构：

[1] Lund Univ, Dept Biol, MEMEG, SE-22362 Lund, Sweden

[2] Lund Univ, Ctr Environm & Climate Res, SE-22362 Lund, Sweden

[3] Swedish Univ Agr Sci, Dept Forest Ecol & Management, SE-90183 Umea, Sweden

[4] Linnaeus Univ, Dept Forestry & Wood Technol, Vaxjo, Sweden

来源：

FUNGAL ECOLOGY | 2019年 / 40卷

基金：

瑞典研究理事会;

关键词：

Apatite; Ectomycorrhizae; Ergosterol; Nitrogen and phosphorus limitation; Nitrogen deposition; Nitrogen leaching; SOIL MICROBIAL COMMUNITY; NORWAY SPRUCE; FUNGAL COMMUNITY; EXTRAMATRICAL MYCELIUM; DEPOSITION GRADIENT; BOREAL FOREST; SPOROCARP PRODUCTION; PINUS-SYLVESTRIS; PICEA-ABIES; SCOTS PINE;

D O I：

10.1016/j.funeco.2018.05.008

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Nitrogen is the main limiting nutrient in boreal ecosystems, but studies in southwest Sweden suggest that certain forests approach phosphorus (P) limitation driven by nitrogen (N) deposition. We added N, P or N + P to a Norway spruce forest in this region, to push the system to N or P limitation. Tree growth and needle nutrient concentrations indicated that the trees are P limited. EMF biomass was reduced only by N + P additions. Soil EMF communities responded more strongly to P than to N. Addition of apatite to ingrowth meshbags altered EMF community composition and enhanced the abundance of Imleria badia in the control and N plots, but not when P was added. The ecological significance of this species is discussed. Effects on tree growth, needle chemistry, and EMF communities indicate a dynamic interaction between EMF fungi and the nutrient status of trees and soils. (C) 2018 Elsevier Ltd and British Mycological Society. All rights reserved.

引用

页码：20 / 31

页数：12

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