Isotope analyses of amino acids in fungi and fungal feeding Diptera larvae allow differentiating ectomycorrhizal and saprotrophic fungi‐based food chains
Isotope analyses of amino acids in fungi and fungal feeding Diptera larvae allow differentiating ectomycorrhizal and saprotrophic fungi‐based food chains
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对真菌和以真菌为食的双翅目幼虫中的氨基酸进行同位素分析,可以区分基于外生菌根和腐生真菌的食物链
DOI:
10.1111/1365-2435.13654
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发表时间:
2020
影响因子:
5.2
通讯作者:
Tiunov
中科院分区:
文献类型:
--
作者:
Pollierer;Tiunov
Both ectomycorrhizal (ECM) and saprotrophic fungi are fundamental to carbon and nutrient dynamics in forest ecosystems; however, the relative importance of these different fungal functional groups for higher trophic levels of the soil food web is virtually unknown.To explore differences between fungal functional groups and their importance for higher trophic levels, we analysed isotopic composition of nitrogen and carbon in amino acids (AAs) and bulk tissue of leaf litter, fungi and fungal‐feeding Diptera larvae.By accounting for isotopic variability of utilized substrates, compound‐specific isotope analyses of nitrogen in AAs yielded more realistic results for the trophic position of fungi than bulk isotope analyses, with converging trophic positions of saprotrophic and ECM fungi.Saprotrophic and ECM fungi possessed different AA δ13C signatures separating fungal functional groups and their consumers in fingerprinting approaches, thereby allowing to trace energy fluxes from these basal resources to higher trophic levels.A pronounced isotopic fractionation even in essential/source AAs of fungal‐feeding Diptera larvae necessitates further studies on tissue‐/compound‐specific isotopic differences in fungi and on potential supplementation by gut micro‐organisms.The results highlight the potential of compound‐specific isotope analysis of amino acids to identify and integrate contributions of different fungal functional groups to higher trophic levels in soil food webs.A free Plain Language Summary can be found within the Supporting Information of this article.
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DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
S. Hart;C. Gehring;P. Selmants;Ron J. Deckert
通讯作者:
Ron J. Deckert
DOI:
10.1111/j.1469-8137.2007.02332.x
发表时间:
2008
期刊:
The New phytologist
影响因子:
--
作者:
B. Boström;D. Comstedt;A. Ekblad
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A. Ekblad
影响因子:
0.5
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通讯作者:
A. Tiunov
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
Liliane Ruess;J. Lussenhop
通讯作者:
J. Lussenhop
影响因子:
1.3
作者:
A. Reineking;R. Langel;J. Schikowski
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J. Schikowski