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DOI	10.1111/ele.13632
	Soil fungal mycelia have unexpectedly flexible stoichiometric C:N and C:P ratios
	Camenzind T.; Philipp Grenz K.; Lehmann J.; Rillig M.C.
发表日期	2021
ISSN	1461023X
起始页码	208
结束页码	218
卷号	24 期号:2
英文摘要	Soil ecological stoichiometry provides powerful theories to integrate the complex interplay of element cycling and microbial communities into biogeochemical models. One essential assumption is that microbes maintain stable C:N:P (carbon:nitrogen:phosphorus) ratios independent of resource supply, although such homeostatic regulations have rarely been assessed in individual microorganisms. Here, we report an unexpected high flexibility in C:N and C:P values of saprobic fungi along nutrient supply gradients, overall ranging between 7-126 and 20-1488, respectively, questioning microbial homeostasis. Fungal N:P varied comparatively less due to simultaneous reductions in mycelial N and P contents. As a mechanism, internal recycling processes during mycelial growth and an overall reduced N and P uptake appear more relevant than element storage. The relationships among fungal stoichiometry and growth disappeared in more complex media. These findings affect our interpretation of stoichiometric imbalances among microbes and soils and are highly relevant for developing microbial soil organic carbon and nitrogen models. © 2020 The Authors. Ecology Letters published by John Wiley & Sons Ltd
关键词	C:N:P ratios element homeostasis fungal nutrient retranslocation microbial carbon sequestration mycelial growth nutrient limitations saprobic fungi soil ecological stoichiometry soil nutrient cycling
英文关键词	carbon; nitrogen; phosphorus; microbiology; soil; Carbon; Nitrogen; Phosphorus; Soil; Soil Microbiology
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204346
作者单位	Institute of Biology, Freie Universität Berlin, Altensteinstr. 6, Berlin, 14195, Germany; Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, 14195, Germany; Soil and Crop Sciences, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853, United States
推荐引用方式 GB/T 7714	Camenzind T.,Philipp Grenz K.,Lehmann J.,et al. Soil fungal mycelia have unexpectedly flexible stoichiometric C:N and C:P ratios[J],2021,24(2).
APA	Camenzind T.,Philipp Grenz K.,Lehmann J.,&Rillig M.C..(2021).Soil fungal mycelia have unexpectedly flexible stoichiometric C:N and C:P ratios.Ecology Letters,24(2).
MLA	Camenzind T.,et al."Soil fungal mycelia have unexpectedly flexible stoichiometric C:N and C:P ratios".Ecology Letters 24.2(2021).