Geoderma,
Journal Year:
2024,
Volume and Issue:
442, P. 116780 - 116780
Published: Jan. 17, 2024
Plant-soil
feedback
(PSF)
is
an
important
driver
of
plant
species
coexistence
and
diversity
maintenance.
However,
it
remains
unclear
how
changes
in
PSF
due
to
decline
tree
richness
influence
the
performance
arbuscular
mycorrhizal
(AM)
ectomycorrhizal
(EcM)
species.
A
experiment
was
established
with
eight
target
(four
AM
four
EcM
species)
based
on
a
subtropical
forest
Biodiversity-Ecosystem
Functioning
Experimental
China
(BEF-China)
platform,
where
soil
inocula
were
collected
beneath
canopy
individuals
growing
monoculture
tree-species
mixture
plots.
We
hypothesized
that
negative
strength
would
be
stronger
monocultures
than
mixtures,
resulting
better
highly
diverse
communities,
whereas
benefit
less
from
richness.
results
showed
consistent
PSFs
regardless
In
contrast,
experienced
change
positive
influencing
seedlings.
With
high
concern
cascading
effects
via
modulating
fungal
we
revealed
alterations
abundance,
putatively
pathogenic
diversity,
co-occurrence
network
complexity
mirrored
those
associated
species,
showing
mixtures.
Our
findings
highlight
differential
exhibited
by
response
richness,
provide
insight
into
potential
role
functional
guilds
shaping
them.
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: July 5, 2022
Plant
response
to
drought
stress
involves
fungi
and
bacteria
that
live
on
in
plants
the
rhizosphere,
yet
stability
of
these
myco-
micro-biomes
remains
poorly
understood.
We
investigate
resistance
resilience
an
agricultural
system
using
both
community
composition
microbial
associations.
Here
we
show
tests
fundamental
hypotheses
fungi,
as
compared
bacteria,
are
(i)
more
resistant
but
(ii)
less
resilient
when
rewetting
relieves
stress,
found
robust
support
at
level
composition.
Results
were
complex
all-correlations
co-occurrence
networks.
In
general,
disrupts
networks
based
significant
positive
correlations
among
between
fungi.
Surprisingly,
functional
guilds
rhizosphere
leaf
strengthened
by
drought,
same
was
seen
for
involving
arbuscular
mycorrhizal
rhizosphere.
also
gradient
hypothesis
because
increased
relative
frequency
correlations.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Sept. 5, 2023
Abstract
Mutualism
is
commonly
observed
in
nature
but
not
often
reported
for
bacterial
communities.
Although
abiotic
stress
thought
to
promote
microbial
mutualism,
there
a
paucity
of
research
this
area.
Here,
we
monitor
communities
quasi-natural
composting
system,
where
temperature
variation
(20
°C–70
°C)
the
main
stress.
Genomic
analyses
and
culturing
experiments
provide
evidence
that
selects
slow-growing
stress-tolerant
strains
(i.e.,
Thermobifida
fusca
Saccharomonospora
viridis
),
mutualistic
interactions
emerge
between
them
remaining
through
sharing
cobalamin.
Comparison
3000
pairings
reveals
mutualism
common
(~39.1%)
competition
rare
(~13.9%)
pairs
involving
T.
S.
.
Overall,
our
work
provides
insights
into
how
high
can
favour
reduce
at
both
community
species
levels.
The ISME Journal,
Journal Year:
2024,
Volume and Issue:
18(1)
Published: Jan. 1, 2024
Abstract
Gut
microbiota
are
important
in
the
adaptation
of
phytophagous
insects
to
their
plant
hosts.
However,
interaction
between
gut
microbiomes
and
pioneering
populations
invasive
during
new
hosts,
particularly
initial
phases
invasion,
has
been
less
studied.
We
studied
contribution
microbiome
host
globally
recognized
pest,
Hyphantria
cunea,
as
it
expands
its
range
into
southern
China.
The
population
H.
cunea
shows
effective
Metasequoia
glyptostroboides
exhibits
greater
larval
survival
on
than
original
population.
Genome
resequencing
revealed
no
significant
differences
functions
related
two
populations.
compatibility
M.
a
correlation
abundance
several
bacteria
genera
(Bacteroides,
Blautia,
Coprococcus)
survival.
Transplanting
from
northern
enhanced
adaptability
latter
previously
unsuitable
glyptostroboides.
This
research
provides
evidence
that
can
enhance
pests
hosts
enable
more
rapid
habitats.
New Phytologist,
Journal Year:
2022,
Volume and Issue:
237(1), P. 279 - 294
Published: Sept. 30, 2022
Summary
Nitrogen
(N)
enrichment
poses
threats
to
biodiversity
and
ecosystem
stability,
while
arbuscular
mycorrhizal
(AM)
fungi
play
important
roles
in
stability
functioning.
However,
the
ecological
impacts,
especially
thresholds
of
N
potentially
causing
AM
fungal
community
shifts
have
not
been
adequately
characterized.
Based
on
a
long‐term
field
experiment
with
nine
addition
levels
ranging
from
0
50
g
m
−2
yr
−1
temperate
grassland,
we
characterized
response
patterns
enrichment.
Arbuscular
biomass
continuously
decreased
increasing
levels.
diversity
did
significantly
change
below
20
,
but
dramatically
at
higher
levels,
which
drove
unstable
state.
Structural
equation
modeling
showed
that
decline
could
be
well
explained
by
soil
acidification,
whereas
key
driving
factors
for
shifted
nitrogen
:
phosphorus
(N
P)
ratio
pH
Different
aspects
communities
(biomass,
composition)
respond
differently
Thresholds
substantial
this
grassland
are
identified.
Applied Soil Ecology,
Journal Year:
2023,
Volume and Issue:
195, P. 105217 - 105217
Published: Nov. 30, 2023
Application
of
biochar
to
soil
has
been
recommended
as
a
carbon
sequestration
approach
that
can
also
improve
physical
and
chemical
properties.
The
addition
change
the
physicochemical
properties
soil,
leading
subsequent
modification
microbial
community.
However,
long-term
implications
these
changes
remain
insufficiently
elucidated.
Here,
we
examined
biochemical
bulk
employed
next-generation
sequencing
techniques
analyze
microbiological
both
rhizosphere
soils
after
10
years
application.
Specifically,
compared
between
treated
with
two
doses
biochar,
i.e.,
SB
DB,
untreated
CK.
After
years,
application
increased
organic
from
12.7
g.kg−1
in
CK
17.3
23.1
g.kg−1,
respectively.
Moreover,
led
slight
decrease
density,
pH
value
6.33
7.07
DB.
our
findings
revealed
distinct
taxonomic
signature
within
bacteria;
however,
this
was
not
observed
terms
diversity.
an
increase
abundance
oligotrophic
bacteria
copiotrophic
bacteria.
double
dose
fungal
species
richness
rhizosphere,
particularly
Basidiomycota
yeasts,
relative
9.4
%
17.0
24.8
DB
reduced
putative
plant
pathogens
like
Phaeoacremonium
Aspergillus.
Biochar
amendment
significantly
physical,
chemical,
biological
fertility
on
even
under
intensive
viticulture
management,
no
detectable
detrimental
effects
diversity
functions,
potential
storage.
Microbiological Research,
Journal Year:
2024,
Volume and Issue:
281, P. 127601 - 127601
Published: Jan. 6, 2024
Modern
crops
might
have
lost
some
of
their
functional
traits,
required
for
interacting
with
beneficial
microbes,
as
a
result
the
genotypic/phenotypic
modifications
that
occurred
during
domestication.
Here,
we
studied
bacterial
and
fungal
microbiota
in
rhizosphere
two
cultivated
wheat
species
(Triticum
aestivum
T.
durum)
respective
ancestors
(Aegilops
tauschii
dicoccoides),
three
experimental
fields,
by
using
metabarcoding
16S
rRNA
genes
ITS2,
coupled
co-occurrence
network
analysis.
Moreover,
abundance
involved
N-
P-cycles
was
estimated
quantitative
PCR,
urease,
alkaline
phosphatase
phosphomonoesterase
activities
were
assessed
enzymatic
tests.
The
relationships
between
environmental
metadata
tested
correlation
assemblage
core
affected
both
site
plant
species.
No
significant
differences
potential
pathogens
wild
found;
however,
analysis
showed
more
bacterial-fungal
negative
correlations
Concerning
functions,
nitrogen
denitrification
nirS
gene
consistently
abundant
A.
than
aestivum.
Urease
activity
higher
each
at
least
research
locations.
Several
members,
including
potentially
taxa
such
Lysobacter
new
Blastocatellaceae,
found
to
be
strongly
correlated
rhizospheric
soil
metadata.
Our
results
microbiome
shift
Notably,
these
changes
also
included
reduction
natural
biocontrol
rhizosphere-associated
bacteria
against
pathogenic
fungi,
suggesting
domestication
disrupted
equilibrium
plant-microbe
had
been
established
million
years
co-evolution.