New Phytologist,
Journal Year:
2024,
Volume and Issue:
244(3), P. 752 - 759
Published: Sept. 4, 2024
Summary
Knowledge
of
differential
life‐history
strategies
in
arbuscular
mycorrhizal
(AM)
fungi
is
relevant
for
understanding
the
ecology
this
group
and
its
potential
role
sustainable
agriculture
carbon
sequestration.
At
present,
AM
fungal
theories
often
focus
on
investment
into
intra‐
vs
extraradical
structures
among
taxa,
implications
plant
benefits.
With
Viewpoint
we
aim
to
expand
these
by
integrating
a
mycocentric
economics‐
resource‐based
framework.
As
plants,
nutrient
demands
are
stoichiometrically
coupled,
though
uptake
elements
spatially
decoupled.
Consequently,
morphological
not
competition.
We
argue
that
evolution
trade‐offs
requires
increased
variation
foraging
same
element,
within
or
(in
our
view
‘horizontal’
axis),
just
between
them
(‘vertical’
axis).
Here,
elaborate
argument
propose
range
plausible
could
lead
fungi,
providing
testable
hypotheses
creating
opportunities
explain
co‐existence,
context‐dependent
effects
growth
soil
dynamics.
Nature Communications,
Journal Year:
2021,
Volume and Issue:
12(1)
Published: June 9, 2021
Abstract
Ecosystems
across
the
globe
receive
elevated
inputs
of
nutrients,
but
consequences
this
for
soil
fungal
guilds
that
mediate
key
ecosystem
functions
remain
unclear.
We
find
nitrogen
and
phosphorus
addition
to
25
grasslands
distributed
four
continents
promotes
relative
abundance
pathogens,
suppresses
mutualists,
does
not
affect
saprotrophs.
Structural
equation
models
suggest
responses
are
often
indirect
primarily
mediated
by
nutrient-induced
shifts
in
plant
communities.
Nutrient
also
reduces
co-occurrences
within
among
guilds,
which
could
have
important
belowground
interactions.
Focusing
only
on
plots
received
no
nutrient
addition,
properties
influence
pathogen
globally,
whereas
community
characteristics
climate
show
consistent,
guild-level
enhance
our
ability
predict
function
related
anthropogenic
eutrophication,
can
longer-term
Global Change Biology,
Journal Year:
2022,
Volume and Issue:
28(8), P. 2527 - 2540
Published: Jan. 6, 2022
Associations
between
soil
minerals
and
microbially
derived
organic
matter
(often
referred
to
as
mineral-associated
or
MAOM)
form
a
large
pool
of
slowly
cycling
carbon
(C).
The
rhizosphere,
immediately
adjacent
roots,
is
thought
control
the
spatial
extent
MAOM
formation
because
it
dominant
entry
point
new
C
inputs
soil.
However,
emphasis
on
rhizosphere
implicitly
assumes
that
microbial
redistribution
into
bulk
(non-rhizosphere)
soils
minimal.
We
question
this
assumption,
arguing
extensive
fungal
exploration
rapid
hyphal
turnover,
from
common,
encourages
formation.
First,
we
summarize
published
estimates
length
density
turnover
rates
demonstrate
are
high
throughout
rhizosphere-bulk
continuum.
Second,
colonization
surfaces
common
dispersal
mechanism
for
bacteria,
argue
allows
non-random
mineral
by
hyphae-associated
taxa.
Third,
these
bacterial
communities
their
hosts
determine
chemical
deposited
colonized
surfaces.
Collectively,
our
analysis
demonstrates
omission
hyphosphere
conceptual
models
flow
overlooks
key
mechanisms
in
soils.
Moving
forward,
there
clear
need
spatially
explicit,
quantitative
research
characterizing
environmental
drivers
community
composition
across
systems,
important
controls
over
rate
chemistry
minerals.
Global Change Biology,
Journal Year:
2021,
Volume and Issue:
27(12), P. 2793 - 2806
Published: March 8, 2021
Abstract
Priming
plays
important
roles
in
terrestrial
carbon
cycling,
but
the
patterns
and
drivers
of
priming
its
responses
to
nutrient
addition
tropical
forests
remain
unclear.
By
collecting
soils
along
a
forest
elevation
gradient,
we
conducted
an
incubation
experiment
with
13
C‐labeled
glucose
(N
and/or
P)
additions.
Results
showed
that
effects
increased
soil
organic
matter
decomposition
by
44
±
12%
across
elevations,
intensity
decreased
significantly
elevation.
Among
microbial
properties,
(SOC)
content
pH
were
two
key
factors
negatively
positively
regulating
priming,
respectively.
Across
additions
N,
P,
or
both
them
(NP)
did
not
change
priming.
However,
variations
on
correlated
initial
availability.
The
for
N
availability,
P
NP
Based
these
relationships,
proposed
conceptual
framework
linking
stoichiometric
mining
hypotheses,
which
former
dominates
low‐nutrient
availability
latter
high‐nutrient
soils.
This
can
help
explain
contrasting
Collectively,
our
findings
highlight
SOC
intensity,
role
New Phytologist,
Journal Year:
2022,
Volume and Issue:
235(6), P. 2158 - 2175
Published: June 17, 2022
Summary
Stress
is
ubiquitous
and
disrupts
homeostasis,
leading
to
damage,
decreased
fitness,
even
death.
Like
other
organisms,
mycorrhizal
fungi
evolved
mechanisms
for
stress
tolerance
that
allow
them
persist
or
thrive
under
environmental
stress.
Such
can
also
protect
their
obligate
plant
partners,
contributing
health
survival
hostile
conditions.
Here
we
review
the
effects
of
response
in
fungi.
We
cover
molecular
cellular
aspects
how
impacts
individual
physiology,
growth,
reproduction,
interactions
with
along
some
tolerate
address
lead
adaptation
have
cascading
on
population‐
community‐level
diversity.
argue
fungal
strongly
shape
not
only
but
ecology
evolution.
conclude
by
pointing
out
knowledge
gaps
important
future
research
directions
required
both
fully
understanding
context
addressing
ongoing
change.
