Mycorrhizal mycelial respiration: A substantial component of soil respired CO2

Mengguang Han; Jiguang Feng; Ying Chen; Lijuan Sun; Liangchen Fu; Biao Zhu

doi:10.1016/j.soilbio.2021.108454

Mycorrhizal mycelial respiration: A substantial component of soil respired CO₂

Mengguang Han
, Jiguang Feng
, Ying Chen
, Lijuan Sun
, Liangchen Fu
, Biao Zhu^*

^*Corresponding author for this work

Peking University

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Mycorrhizal fungi constitute a considerable sink for plant photo-assimilates, yet poor knowledge about mycorrhizal mycelial respiration (R_Myc) hinders the quantification of its role in belowground carbon cycling. We synthesized available field data of R_Myc, and found that R_Myc contributed 15% of soil respiration and 38% of autotrophic respiration (including R_Myc and root respiration, R_Root). We observed no significant differences of R_Myc between ectomycorrhiza and arbuscular mycorrhiza dominated ecosystems. Both R_Myc/R_Root and R_Myc/(R_Root + R_Myc) significantly decreased with increasing R_Root, and correlated with absolute latitude, mean annual temperature and precipitation. Collectively, R_Myc is a substantial component of soil respiration and exhibits divergent geographical pattern with that of R_Root, and should be considered separately in terrestrial carbon cycling models.

Original language	English
Article number	108454
Journal	Soil Biology and Biochemistry
Volume	163
DOIs	https://doi.org/10.1016/j.soilbio.2021.108454
State	Published - Dec 2021
Externally published	Yes

Keywords

CO efflux
Mycelium
Mycorrhizal fungi
Root respiration
Soil respiration

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.soilbio.2021.108454

Cite this

@article{d1008ba0097f4ca9bed9799cc4b44305,

title = "Mycorrhizal mycelial respiration: A substantial component of soil respired CO2",

abstract = "Mycorrhizal fungi constitute a considerable sink for plant photo-assimilates, yet poor knowledge about mycorrhizal mycelial respiration (RMyc) hinders the quantification of its role in belowground carbon cycling. We synthesized available field data of RMyc, and found that RMyc contributed 15\% of soil respiration and 38\% of autotrophic respiration (including RMyc and root respiration, RRoot). We observed no significant differences of RMyc between ectomycorrhiza and arbuscular mycorrhiza dominated ecosystems. Both RMyc/RRoot and RMyc/(RRoot + RMyc) significantly decreased with increasing RRoot, and correlated with absolute latitude, mean annual temperature and precipitation. Collectively, RMyc is a substantial component of soil respiration and exhibits divergent geographical pattern with that of RRoot, and should be considered separately in terrestrial carbon cycling models.",

keywords = "CO efflux, Mycelium, Mycorrhizal fungi, Root respiration, Soil respiration",

author = "Mengguang Han and Jiguang Feng and Ying Chen and Lijuan Sun and Liangchen Fu and Biao Zhu",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

month = dec,

doi = "10.1016/j.soilbio.2021.108454",

language = "英语",

volume = "163",

journal = "Soil Biology and Biochemistry",

issn = "0038-0717",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Mycorrhizal mycelial respiration

T2 - A substantial component of soil respired CO2

AU - Han, Mengguang

AU - Feng, Jiguang

AU - Chen, Ying

AU - Sun, Lijuan

AU - Fu, Liangchen

AU - Zhu, Biao

PY - 2021/12

Y1 - 2021/12

N2 - Mycorrhizal fungi constitute a considerable sink for plant photo-assimilates, yet poor knowledge about mycorrhizal mycelial respiration (RMyc) hinders the quantification of its role in belowground carbon cycling. We synthesized available field data of RMyc, and found that RMyc contributed 15% of soil respiration and 38% of autotrophic respiration (including RMyc and root respiration, RRoot). We observed no significant differences of RMyc between ectomycorrhiza and arbuscular mycorrhiza dominated ecosystems. Both RMyc/RRoot and RMyc/(RRoot + RMyc) significantly decreased with increasing RRoot, and correlated with absolute latitude, mean annual temperature and precipitation. Collectively, RMyc is a substantial component of soil respiration and exhibits divergent geographical pattern with that of RRoot, and should be considered separately in terrestrial carbon cycling models.

AB - Mycorrhizal fungi constitute a considerable sink for plant photo-assimilates, yet poor knowledge about mycorrhizal mycelial respiration (RMyc) hinders the quantification of its role in belowground carbon cycling. We synthesized available field data of RMyc, and found that RMyc contributed 15% of soil respiration and 38% of autotrophic respiration (including RMyc and root respiration, RRoot). We observed no significant differences of RMyc between ectomycorrhiza and arbuscular mycorrhiza dominated ecosystems. Both RMyc/RRoot and RMyc/(RRoot + RMyc) significantly decreased with increasing RRoot, and correlated with absolute latitude, mean annual temperature and precipitation. Collectively, RMyc is a substantial component of soil respiration and exhibits divergent geographical pattern with that of RRoot, and should be considered separately in terrestrial carbon cycling models.

KW - CO efflux

KW - Mycelium

KW - Mycorrhizal fungi

KW - Root respiration

KW - Soil respiration

UR - https://www.scopus.com/pages/publications/85117905380

U2 - 10.1016/j.soilbio.2021.108454

DO - 10.1016/j.soilbio.2021.108454

M3 - 文章

AN - SCOPUS:85117905380

SN - 0038-0717

VL - 163

JO - Soil Biology and Biochemistry

JF - Soil Biology and Biochemistry

M1 - 108454

ER -