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
复制标题

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
复制
发表时间:
2020
期刊:
影响因子:
5.2
通讯作者:
Tiunov
Tiunov
中科院分区:
环境科学与生态学1区
文献类型:
--
作者:
Pollierer;Tiunov

文献摘要

参考文献

被引文献

相似文献

外生菌根和腐生性真菌是森林生态系统碳和养分动态的基础;然而,这些不同的真菌功能群对土壤食物网的高营养级的相对重要性实际上是未知的。为了探索真菌功能群之间的差异及其对高营养级的重要性,我们分析了凋落叶、真菌和食真菌双翅目幼虫的氨基酸(AAs)和大量组织中的氮和碳同位素组成。通过解释所用底物的同位素变异性,AAs中氮的化合物特异性同位素分析比大量同位素分析对真菌的营养地位产生了更真实的结果,腐解真菌和ECM真菌的营养位置一致,腐解真菌和ECM真菌具有不同的AA δ 13 C特征,将真菌功能群和它们的消费者分开在指纹识别方法中,因此,可以追踪从这些基础资源到更高营养水平的能量通量。即使在真菌喂养的双翅目幼虫的基本/源AA中,也存在明显的同位素分馏,因此有必要进一步研究组织-/真菌中化合物特异性同位素差异以及肠道微生物的潜在补充。结果强调了氨基酸化合物特异性同位素分析在识别和整合方面的潜力不同真菌功能群对土壤食物网中更高营养级的贡献。
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.
美国西南部半干旱森林大型真菌子实体和树木的碳氮元素和同位素模式
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
呼吸过程中的同位素分馏能否解释外生菌根真菌和腐养真菌富含 13 C 的子实体?
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
通讯作者: A. Ekblad
菌食性双翅目幼虫中的稳定同位素营养级分离(13C/12C 和 15N/14N)
DOI: --
发表时间: 2019
期刊: Biology Bulletin
影响因子: 0.5
作者:
A. Zuev;O. L. Rozanova;S. Tsurikov;P. Panchenko;M. A. Ershova;D. Smolyarova;M. Krivosheina;A. V. Aleksandrova;S. B. Ivnitsky;Y. Maleeva;A. Tiunov
通讯作者: A. Tiunov
真菌和动物的营养相互作用
DOI: --
发表时间: 2005
期刊:
影响因子: --
作者:
Liliane Ruess;J. Lussenhop
通讯作者: J. Lussenhop
使用元素分析仪 (Carlo Erba, NA 1500)、改进的捕获箱和气体同位素质谱仪 (Finnigan, MAT 251) 进行 15N、13C 在线测量
DOI: 10.1080/10256019308046151
发表时间: 1993
影响因子: 1.3
作者:
A. Reineking;R. Langel;J. Schikowski
通讯作者: J. Schikowski