Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Июль 21, 2023
Abstract
Understanding
changes
in
the
distribution
patterns
and
diversity
of
soil
microbial
communities
from
perspectives
age-related
changes,
seasonal
variations,
interaction
between
two
factors
can
facilitate
management
plantations.
In
Chinese
fir
plantations,
we
collected
soils
different
depths
overmature
forests
(OMF),
mature
(MAF),
near-mature
(NMF),
middle-aged
(MIF),
young
(YOF)
summer,
autumn,
winter
China's
subtropical
regions.
As
developed,
fungal
community
recovered
high
MAF
OMF
while
bacterial
indicators
continued
to
decline.
Bacterial
were
more
diverse
summer
winter.
Differences
seasons
mainly
reflected
average
maximum
temperature
indicators.
Bacteria
clustered
by
season,
fungi
developmental
stage,
showed
differences
structure
at
taxonomic
levels.
The
is
a
important
indicator
fertility
maintenance,
increasing
with
increase
forest
age,
which
suggested
that
extending
tree
cultivation
time
could
improve
ages,
found
some
species
worthy
attention,
including
Actinobacteria
abundance
Bacteroidetes
autumn
forests,
Firmicutes
forests.
like
Arcopilus
Tolypocladium
over-mature
also
have
significance
further
research,
may
be
key
for
restoration.
Plant Cell & Environment,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 15, 2025
ABSTRACT
Legumes
have
important
functions
in
degraded
ecosystems
as
they
can
mediate
atmospheric
nitrogen
(N)
inputs
and
increase
soil
N
availability.
However,
it
remains
unclear
whether
legumes
affect
availability
only
through
biological
fixation
or
stimulating
microbial
transformations.
In
this
study,
nine
native
four
non‐legumes
were
collected
following
a
9‐year
natural
vegetation
restoration
experiment
karst
rocky
desertification
area.
Leaf
N/phosphorus
(P)
ratios
various
pool
compositions
analyzed
gross
transformation
rates
determined
by
15
tracing
techniques.
exhibited
higher
leaf
δ
values
increased
contents
of
total
N,
biomass
inorganic
compared
to
non‒legumes.
Legume
content
N/P
ratio
(26.7
g
kg
‒1
20.7)
significantly
exceeded
those
non‒legumes
(14.2
14.5).
Our
results
indicate
that
decreased
plant
limitation
after
9
years
succession,
with
effects
varying
between
species
related
processes.
Species
low
high
organic
mineralization
(
M
Norg
)
ammonium
oxidation
nitrate
O
NH4
),
both
which
supply
(especially
nitrate).
This
effect
was
more
pronounced
rhizosphere
than
bulk
soil.
positively
correlated
p
<
0.01)
carbon,
water
holding
capacity,
calcium
well
N:P
ratios,
indicating
improve
quality
supply,
thereby
alleviating
limitation.
highlight
the
importance
cycling
availability,
is
often
limiting
factor
for
ecosystems.
Microorganisms,
Год журнала:
2024,
Номер
12(4), С. 728 - 728
Опубликована: Апрель 3, 2024
Although
the
importance
of
soil
bacterial
community
for
ecosystem
functions
has
long
been
recognized,
there
is
still
a
limited
understanding
associations
between
its
composition,
structure,
co-occurrence
patterns,
and
physicochemical
properties.
The
objectives
present
study
were
to
explore
association
properties
diversity,
network
topological
features,
assembly
mechanisms
community.
Four
typical
forest
types
from
Liziping
Nature
Reserve,
representing
evergreen
coniferous
forest,
deciduous
mixed
conifer-broadleaf
secondary
selected
this
study.
was
analyzed
using
Illumina
MiSeq
sequencing
16S
rRNA
genes.
Nonmetric
multidimensional
scaling
used
illustrate
clustering
different
samples
based
on
Bray–Curtis
distances.
structure
Mantel
test.
interactions
among
taxa
visualized
with
network,
processes
quantified
Beta
Nearest
Taxon
Index
(Beta-NTI).
dominant
phyla
across
all
soils
Proteobacteria
(45.17%),
Acidobacteria
(21.73%),
Actinobacteria
(8.75%),
Chloroflexi
(5.06%).
Chao1
estimator
richness,
observed
ASVs,
faith-phylogenetic
diversity
(faith-PD)
index,
composition
distinguishing
features
examined
four
types.
first
two
principal
components
redundancy
analysis
explained
41.33%
variation
in
community,
total
organic
carbon,
moisture,
pH,
nitrogen,
carbon/nitrogen
(C/N),
carbon/phosphorous
(C/P),
nitrogen/phosphorous
(N/P)
being
main
shaping
communities.
more
complex
compared
that
pure
forests.
Beta-NTI
indicated
collaboratively
influenced
by
deterministic
stochastic
ecological
processes.
Journal of Plant Ecology,
Год журнала:
2023,
Номер
16(6)
Опубликована: Сен. 28, 2023
Abstract
Soil
microorganisms,
which
include
many
rare
taxa
and
a
small
number
of
abundant
taxa,
have
different
contributions
to
the
ecosystem
functions
services.
High
throughput
sequencing
technology
was
used
analyze
species
composition
soil
samples
by
DNA
sequencing.
microorganisms
were
divided
into
reveal
their
composition.
Correlation
analysis
random
forest
method
further
influence
environmental
factors
on
community.
Finally,
beta
nearest
taxon
index
(βNTI)
based
null
model
elucidate
mechanisms
underlying
microbial
community
assembly.
We
found
that,
in
desert
soil,
assembly
bacteria
almost
entirely
dominated
homogeneous
selection
deterministic
processes.
For
comparison,
stochastic
processes
had
more
pronounced
effects
bacteria.
However,
both
fungi
exhibited
similar
patterns
assembly,
i.e.
jointly
determined
fungal
communities.
also
observed
that
shifted
from
with
increasing
mean
annual
precipitation
(MAP)
temperature
(MAT)
for
Conversely,
fungi,
there
an
inclination
toward
shift
rising
MAT.
In
conclusion,
our
findings
provide
compelling
evidence
MAT
MAP
regulate
process
communities
soil.
These
establish
theoretical
foundation
future
investigations
structure
ecological
microorganisms.
Microbiology Spectrum,
Год журнала:
2024,
Номер
12(8)
Опубликована: Июль 9, 2024
Understanding
changes
in
the
distribution
patterns
and
diversity
of
soil
microbial
communities
from
perspectives
age-related
changes,
seasonal
variations,
interaction
between
two
factors
can
facilitate
management
plantations.
In
Chinese
fir
plantations,
we
collected
soils
different
depths
over-mature
forests,
mature
near-mature
middle-aged
young
forests
summer,
autumn,
winter
China's
subtropical
regions.
As
developed,
bacterial
fungal
communities'
changed,
reached
a
minimum
value
at
then
increased
or
forests.
Near-mature
had
lowest
topological
properties.
The
Shannon
index
varied
with
(
Environmental Technology & Innovation,
Год журнала:
2023,
Номер
32, С. 103378 - 103378
Опубликована: Сен. 27, 2023
Rhamnolipids
have
been
extensively
studied
for
the
remediation
of
soils
contaminated
with
petroleum
hydrocarbons.
However,
literature
on
effects
rhamnolipids
soil
microenvironment
is
scarce.
In
this
study,
we
adopted
a
drip
irrigation
technique
to
apply
rhamnolipid
solution
planted
cotton
in
saline
desert
area.
The
results
showed
that
addition
increased
organic
matter
by
5.0–31.6%
and
reduced
electrical
conductivity
0.3–42.4%.
Additionally,
it
improved
nutrient
conditions,
reshaped
composition
function
microbial
community
rhizosphere
soil,
ultimately
promoted
growth
3.3
–
9.0%.
Simultaneously,
enriched
diversity
bacterial
community.
Although
fungal
communities,
optimized
structure
fungi.
It
worth
noting
higher
concentrations
may
toxic
fungi,
mechanism
which
unknown.
These
findings
shed
new
light
understanding
microorganisms
provide
direction
sustainable
agricultural
production.
Land Degradation and Development,
Год журнала:
2024,
Номер
35(5), С. 1913 - 1926
Опубликована: Янв. 14, 2024
Abstract
Healthy
soil
is
essential
for
maintaining
food
security
and
enhancing
ecosystem
functions.
Green
manure
application
improves
fertility
an
alternative
to
chemical
fertilizers;
however,
research
on
optimizing
health
assessment
systems
providing
comprehensive
accurate
information
local
farmland
green
management
models
remains
limited.
In
this
study,
we
used
maize
potato
intercropped
with
in
the
main
crop
production
area
of
a
semi‐arid
irrigation
Northwest
China
as
object,
integrated
regional
environment
characteristics,
principal
component
analysis
other
methods
establish
minimum
index
data
set
including
physicochemical,
biological,
yield
indices.
A
system
applicable
study
region
was
constructed
optimized
by
drawing
scoring
curve.
The
results
showed
that
treatment
exerted
positive
effect
bulk
density,
nutrient
content,
extracellular
enzyme
activity,
fields.
This
evaluation
method
both
treatments
could
improve
two
major
fields,
scores
6.9
(3.7–8.6)
6.2
(4.5–7.0)
farmland,
respectively,
greater
caused
maize.
can
not
only
reflect
conditions
accurately
given
areas
northwest
but
also
provide
reference
promotion
organic
fertilizers
such
resolution
differences.
Soil Systems,
Год журнала:
2024,
Номер
9(1), С. 2 - 2
Опубликована: Дек. 26, 2024
Soil
is
a
complex
and
dynamic
ecosystem
containing
diverse
array
of
microorganisms,
plays
crucial
multifaceted
role
in
various
functions
the
ecosystem.
Substantial
fluctuations
environmental
conditions
arise
from
global
changes.
The
microbial
shifts
soil
concordance
with
changing
factors,
or
combination
these
are
high
significance.
Exploring
contribution
change
drivers
to
community
improve
predictions
response
functioning
prime
importance.
Promoting
health
microorganisms
maintains
overall
fertility
soil,
which
turn
supports
terrestrial
ecosystems
agricultural
systems.
current
review
aims
assemble
different
abiotic
factors
stressors
that
exist
environment
affect
community.
More
focus
will
be
given
one
stressors—antibiotics,
recent
emerging
pollutant.
effects
on
future
due
presence
antibiotics
addressed.
scope
interaction
other
pollutants
like
plastics
heavy
metals
(HMs)
examined.
Research Square (Research Square),
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 28, 2025
Abstract
Grasslands
are
important
centers
of
biodiversity,
however
these
ecosystems
have
been
in
decline.
Although
many
methods
for
grassland
restoration
developed,
the
abundant
microbial
communities
regions
understudied
and
could
be
used
to
assist
efforts.
In
this
study,
we
aimed
understand
how
varied
by
soil
type,
site,
environmental
conditions.
Samples
were
taken
from
rhizosphere
soil,
proximal
(close
plant
roots)
bulk
cores
at
Ricketts
Glen
State
Park
Nescopeck
Northeastern
Pennsylvania
during
June
August
2021
2022.
Rhizosphere
samples
common
plant,
Solidago
rugosa.
16S
rRNA
gene
sequencing
revealed
that
pH
as
well
type
(bulk,
proximal,
or
rhizosphere)
significantly
influenced
community
composition
taxonomic
each
soil.
Each
had
its
own
distinct
communities,
was
identified
a
transition
zone
between
communities.
We
also
observed
dependent
upon
geography,
different
grasslands
even
though
species
remained
same.
Our
results
highlight
complex
nature
factors,
including
pH,
able
layer
together
impact
composition.
Results
showcase
potential
avenues
conservation
rehabilitation
diminished
through
modification
regulation
specific
