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Imprint of tree species mycorrhizal association on microbial-mediated enzyme activity and stoichiometry

Zheng, Haifeng LU ; Phillips, Richard P. ; Rousk, Johannes LU ; Yue, Kai ; Schmidt, Inger Kappel ; Peng, Yan ; Wang, Senhao and Vesterdal, Lars (2023) In Functional Ecology 37(5). p.1366-1376
Abstract
Understanding the effects of tree
species and their mycorrhizal association on soil processes is critical
for predicting the ecosystem consequences of species shifts owing to
global change and forest management decisions. While it is well
established that forests dominated by different mycorrhizal types can
vary in how they cycle carbon (C), nitrogen (N) and phosphorus (P), the
degree to which these patterns are driven by microbial-mediated enzyme
activity (EA) and ecoenzymatic stoichiometry (ES) remains elusive. Here,
we synthesized the effects of mycorrhizal association on seven soil
enzymes involved in microbial C, N and P acquisition and ES using data
from 56 peer-reviewed papers. We... (More)
Understanding the effects of tree
species and their mycorrhizal association on soil processes is critical
for predicting the ecosystem consequences of species shifts owing to
global change and forest management decisions. While it is well
established that forests dominated by different mycorrhizal types can
vary in how they cycle carbon (C), nitrogen (N) and phosphorus (P), the
degree to which these patterns are driven by microbial-mediated enzyme
activity (EA) and ecoenzymatic stoichiometry (ES) remains elusive. Here,
we synthesized the effects of mycorrhizal association on seven soil
enzymes involved in microbial C, N and P acquisition and ES using data
from 56 peer-reviewed papers. We found that relative to soil in
ectomycorrhizal (EcM) trees, soil in arbuscular mycorrhizal (AM) trees
exhibited greater activity of some C acquisition enzymes (e.g.
beta-glucosidase; BG) and higher ecoenzymatic ratios of BG/NAG
(N-acetyl-glucosaminidase) and BG/AP (acid phosphatase). These results
supported that AM trees had rapid C and nutrient turnover rates,
inorganic nutrient economics and high soil microbial C limitation. We
also found evidence for an organic nutrient economy and greater soil
microbial demand for nutrients in EcM trees compared to AM trees. In
addition, the effect of mycorrhizal association on the activity of
certain soil enzymes and enzymatic stoichiometry (i.e. BG and BG/NAG
ratio) appeared to be associated with the differences in soil pH,
phylogenetic group (i.e. conifers and broadleaves) and leaf habit (i.e.
evergreen and deciduous) between AM and EcM trees. The results from the
global meta-analysis suggested that soil EA and ES appear to play
critical roles in shaping the differences in the nutrient economy
between AM and EcM tree species, but leaf morphology and soil conditions
should be considered in evaluations of soil processes in forests of
different mycorrhizal associations. Given that most of the studies in
the database were from the temperate and subtropical regions, further
research in other biomes is needed to elucidate the underlying
mechanisms driving the mycorrhizal effect at the global scale. (Less)
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author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
meta-analysis, microbial decomposition, nutrient economics, soil enzyme activity, substrate quality
in
Functional Ecology
volume
37
issue
5
pages
11 pages
publisher
Wiley-Blackwell
external identifiers
  • scopus:85150619995
ISSN
0269-8463
DOI
10.1111/1365-2435.14311
language
English
LU publication?
yes
id
f013012a-a829-4964-a051-841c742ab1ea
date added to LUP
2023-05-29 13:55:45
date last changed
2023-05-29 13:55:45
@article{f013012a-a829-4964-a051-841c742ab1ea,
  abstract     = {{Understanding the effects of tree <br>
species and their mycorrhizal association on soil processes is critical <br>
for predicting the ecosystem consequences of species shifts owing to <br>
global change and forest management decisions. While it is well <br>
established that forests dominated by different mycorrhizal types can <br>
vary in how they cycle carbon (C), nitrogen (N) and phosphorus (P), the <br>
degree to which these patterns are driven by microbial-mediated enzyme <br>
activity (EA) and ecoenzymatic stoichiometry (ES) remains elusive. Here,<br>
 we synthesized the effects of mycorrhizal association on seven soil <br>
enzymes involved in microbial C, N and P acquisition and ES using data <br>
from 56 peer-reviewed papers. We found that relative to soil in <br>
ectomycorrhizal (EcM) trees, soil in arbuscular mycorrhizal (AM) trees <br>
exhibited greater activity of some C acquisition enzymes (e.g. <br>
beta-glucosidase; BG) and higher ecoenzymatic ratios of BG/NAG <br>
(N-acetyl-glucosaminidase) and BG/AP (acid phosphatase). These results <br>
supported that AM trees had rapid C and nutrient turnover rates, <br>
inorganic nutrient economics and high soil microbial C limitation. We <br>
also found evidence for an organic nutrient economy and greater soil <br>
microbial demand for nutrients in EcM trees compared to AM trees. In <br>
addition, the effect of mycorrhizal association on the activity of <br>
certain soil enzymes and enzymatic stoichiometry (i.e. BG and BG/NAG <br>
ratio) appeared to be associated with the differences in soil pH, <br>
phylogenetic group (i.e. conifers and broadleaves) and leaf habit (i.e. <br>
evergreen and deciduous) between AM and EcM trees. The results from the <br>
global meta-analysis suggested that soil EA and ES appear to play <br>
critical roles in shaping the differences in the nutrient economy <br>
between AM and EcM tree species, but leaf morphology and soil conditions<br>
 should be considered in evaluations of soil processes in forests of <br>
different mycorrhizal associations. Given that most of the studies in <br>
the database were from the temperate and subtropical regions, further <br>
research in other biomes is needed to elucidate the underlying <br>
mechanisms driving the mycorrhizal effect at the global scale.}},
  author       = {{Zheng, Haifeng and Phillips, Richard P. and Rousk, Johannes and Yue, Kai and Schmidt, Inger Kappel and Peng, Yan and Wang, Senhao and Vesterdal, Lars}},
  issn         = {{0269-8463}},
  keywords     = {{meta-analysis; microbial decomposition; nutrient economics; soil enzyme activity; substrate quality}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{1366--1376}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Functional Ecology}},
  title        = {{Imprint of tree species mycorrhizal association on microbial-mediated enzyme activity and stoichiometry}},
  url          = {{http://dx.doi.org/10.1111/1365-2435.14311}},
  doi          = {{10.1111/1365-2435.14311}},
  volume       = {{37}},
  year         = {{2023}},
}