Frontiers in Microbiology,
Journal Year:
2022,
Volume and Issue:
13
Published: Aug. 2, 2022
Understanding
the
interactions
between
soil
microbial
communities
and
species
is
critical
in
remediation
of
heavy
metal-contaminated
soil.
Biochar
has
been
widely
applied
as
a
stabilizer
situ
cadmium
(Cd)-contaminated
soils
mining
areas.
However,
rebuilding
taxa
rare
abundant
by
biochar
their
cooperative
resistance
to
Cd
stress
remains
elusive.
In
this
pursuit,
present
study
envisaged
effects
two
types
biochars
viz.,
poplar
bark
(PB)
thiourea-modified
(TP)
on
bacterial
fungal
using
pot
experiments.
The
results
demonstrated
that
PB
TP
treatments
significantly
reduced
leached
content,
35.13
68.05%,
respectively,
compared
with
control
group
(CK),
reclaimed
area.
application
improved
physicochemical
properties
like
pH
Soil
Organic
Matter
(SOM)
It
was
observed
treatment
superior
CK
groups
increasing
diversity
taxa.
Compared
group,
enhanced
elevated
complexity
networks
taxa,
increased
number
network
core
microorganisms,
reshaped
microorganisms
hubs,
boosted
stress.
Our
indicate
response
mechanism
synergistic
Cd-contaminated
soil,
thereby
providing
technical
feasibility
for
Environmental Microbiology,
Journal Year:
2022,
Volume and Issue:
24(4), P. 2157 - 2169
Published: March 1, 2022
Summary
Microplastics
have
been
proposed
as
emerging
threats
for
terrestrial
systems
they
may
potentially
alter
the
physicochemical/biophysical
soil
environments.
Due
to
variety
of
properties
microplastics
and
soils,
microplastic‐induced
effects
in
ecosystems
are
greatly
manifold.
Here,
we
studied
three
polymer
(polyamide‐6,
polyethylene,
polyethylene
terephthalate)
on
with
four
different
types.
The
success
patterns,
interaction
relationships,
assembly
processes
bacterial
communities
were
also
studied.
potential
promote
CO
2
emissions
enhance
humification.
Even
though
did
not
significantly
diversity
composition
microbial
community,
application
decreased
network
complexity
stability,
including
size,
connectivity,
number
module
keystone
species.
community
was
governed
by
deterministic
selection
(77.3%–90.9%)
all
treatments,
while
increased
contribution
stochastic
from
9.1%
control
13.6%–22.7%.
neutral
model
results
indicated
most
taxa
present
predicted
region
(approximately
98%),
suggesting
importance
processes.
These
findings
provided
a
fundamental
insight
understanding
ecosystems.
Journal of Geophysical Research Biogeosciences,
Journal Year:
2024,
Volume and Issue:
129(7)
Published: July 1, 2024
Abstract
In
the
soils
of
vanadium
(V)
smelters,
a
diverse
array
microorganisms
relies
on
metabolic
activities
for
survival
amid
stress.
However,
characteristics
and
functions
soil
microbiomes
in
V
mining
environments
remain
unexplored
continental
scale.
This
study
thoroughly
investigates
microbial
diversity,
community
assembly,
functional
potential
microbiome
across
90
smelters
China.
Alpha
diversity
decreases
significantly
along
gradient,
with
emerging
as
primary
factor
influencing
structure,
followed
by
other
environmental,
climatic,
geographic
factors.
The
null
model
reveals
that
induces
homogeneous
selection,
shaping
co‐occurrence
patterns
leading
to
increased
number
positive
associations,
particularly
keystone
genera
such
f_Gemmatimonadaceae
,
Nocardioides
Micromonospora
Rubrobacter
under
higher
concentrations
(>559.6
mg/kg).
Moreover,
metagenomic
analysis
yields
67
metagenome‐assembled
genomes,
unraveling
pathways
taxa
their
likely
involvement
V(V)
reduction
process.
Nitrate
nitrite
reductase
(
nirK
narG
),
mtrABC
are
found
be
taxonomically
affiliated
.
sp,
FEN‐1250
etc.
Additionally,
reverse
citric
acid
cycle
(rTCA)
serves
carbon
fixation
pathway,
synthesizing
alternative
energy
putative
reducers,
highlighting
potentially
synergistic
relationship
between
autotrophic
heterotrophic
processes
supports
survival.
Our
findings
comprehensively
uncover
driving
forces
behind
variation
stress,
revealing
robust
strategies
possibly
employed
indigenous
mitigate
impact
V.
These
insights
hold
applications
bioremediation.
Frontiers in Microbiology,
Journal Year:
2025,
Volume and Issue:
15
Published: Jan. 17, 2025
Interactions
between
endophytes
(endophytic
bacteria
and
fungi)
plants
are
crucial
in
maintaining
crop
fitness
agricultural
systems,
particularly
relation
to
abundant
rare
subcommunities
involved
community
construction.
However,
the
influence
of
long-term
fertilization
on
heterogeneous
rhizosphere
nitrogen
phosphorus
environments
how
these
conditions
affect
key
root
their
assembly
mechanisms
remain
unclear.
We
studied
26th
year
a
field
experiment
conducted
greenhouse
with
varying
levels
(CKP0,
CKP1,
CNP0,
CNP1,
ONP0,
ONP1)
assess
composition
tomato
impact
yield.
employed
16S
rRNA
fungal
ITS
region
amplicon
sequencing
investigate
endophytic
subcommunities,
network
correlations,
core
subcommunity
structures,
species
that
enhance
The
results
indicated
organic
manure
fertilizers
significantly
increased
soil
content,
availability
(labile
P,
moderately
labile
non-labile
P).
These
also
affected
(based
Bray-Curtis
distance)
processes
(βNTI)
microbial
subcommunities.
both
bacterial
was
primarily
governed
by
dispersal
limitation,
structures
being
regulated
content
available
(AN)
P
(MLP).
Rare
complemented
ecological
niches
co-occurrence
network,
supporting
functions
enhancing
stability.
Nitrogen-adapting
provided
stronger
predictive
correlation
for
yield
than
phosphorus-adapting
Additionally,
three
genera
such
as
Arthrobacter,
Microbacterium,
Sphingobium
were
identified
potentially
improving
improvement.
findings
revealed
distinct
fertilization,
our
understanding
better
management
practices
controlling
improve
intensive
ecosystems.
