Proceedings of the National Academy of Sciences,
Год журнала:
2025,
Номер
122(2)
Опубликована: Янв. 9, 2025
Pesticide
application
is
essential
for
stabilizing
agricultural
production.
However,
the
effects
of
increasing
pesticide
diversity
on
soil
microbial
functions
remain
unclear,
particularly
under
varying
nitrogen
(N)
fertilizer
management
practices.
In
this
study,
we
investigated
stochasticity
microbes
and
multitrophic
networks
through
amplicon
sequencing,
assessed
community
related
to
carbon
(C),
N,
phosphorus
(P),
sulfur
(S)
cycling,
characterized
dominant
bacterial
life
history
strategies
via
metagenomics
along
a
gradient
two
N
addition
levels.
Our
findings
show
that
higher
enriches
abundance
specialists
opportunists
capable
degrading
or
resisting
pesticides,
reducing
proportion
generalists
in
absence
addition.
These
shifts
can
complicate
networks.
Under
increased
diversity,
selective
pressure
may
drive
bacteria
streamline
their
average
genome
size
conserve
energy
while
enhancing
C,
P,
S
metabolic
capacities,
thus
accelerating
nutrient
loss.
comparison,
was
found
reduce
niche
differentiation
at
mitigating
impacts
network
complexity
functional
traits
associated
with
ultimately
alleviating
results
reveal
contrasting
different
input
scenarios
emphasize
strategic
mitigate
ecological
use
systems.
Environmental Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 11, 2025
Soil
microbiota
plays
crucial
roles
in
maintaining
the
health,
productivity,
and
nutrient
cycling
of
terrestrial
ecosystems.
The
persistence
prevalence
heterocyclic
compounds
soil
pose
significant
risks
to
health.
However,
understanding
links
between
microbial
responses
remains
challenging
due
complexity
communities
their
various
chemical
structures.
This
study
developed
a
machine-learning
approach
that
integrates
properties
structures
with
diversity
bacteria
functions
predict
impact
on
community
improve
design
eco-friendly
compounds.
We
screened
key
compounds─particularly
those
topological
polar
surface
areas
(<74.2
Å2
or
111.3–154.1
Å2),
carboxyl
groups,
dissociation
constant,
which
maintained
high
bacterial
functions,
revealing
threshold
effects
where
specific
structural
parameters
dictated
responses.
These
stabilize
increase
beneficial
carbon
nitrogen
cycle
functions.
By
applying
these
parameters,
we
quantitatively
assessed
eco-friendliness
scores
811
compounds,
providing
robust
foundation
for
guiding
future
applications.
Our
disentangles
critical
structure-related
influence
establishes
computational
framework
designing
ecological
benefits
from
an
perspective.
Eco-Environment & Health,
Год журнала:
2025,
Номер
unknown, С. 100136 - 100136
Опубликована: Янв. 1, 2025
Microplastics
(MPs)
and
antibiotic
resistance
genes
(ARGs)
pose
significant
challenges
to
the
One
Health
framework
due
their
intricate
multifaceted
ecological
environmental
impacts.
However,
understanding
of
how
MP
properties
influence
ARG
prevalence
in
mariculture
sediments
remains
limited.
Herein,
polystyrene
(PS)
polyvinyl
chloride
(PVC)
MPs
with
different
sizes
(20-120
μm
0.5-2.0
mm)
were
selected
evaluate
impacts
underlying
mechanisms
driving
ARGs
dissemination.
The
results
showed
that
PS
PVC
increased
relative
abundance
by
1.41-2.50-fold
2.01-2.84-fold,
respectively,
compared
control,
particularly
high-risk
genes.
polymer
type
effect
was
identified
as
more
influential
than
size
sediment
resistome
evolution.
shifted
microbial
community
assembly
from
stochastic
deterministic
processes,
thus
enriching
host
pathogens.
Furthermore,
highly
hydrophobic
not
only
recruited
bacteria
colonization
but
also
facilitated
exchange
within
plastisphere.
exogenous
additives
released
(e.g.,
heavy
metals,
bisphenol
A,
tridecyl
ester)
particles
synergistically
promoted
conjugative
transfer
inducing
oxidative
stress
enhancing
cell
membrane
permeability.
These
findings
revealed
characteristics
spread
marine
benthic
ecosystems,
underscoring
importance
mitigating
pollution
maintain
ecosystem
health,
prevent
zoonotic
diseases,
balance
global
health.
Environment International,
Год журнала:
2025,
Номер
195, С. 109280 - 109280
Опубликована: Янв. 1, 2025
Water
diversion
projects
effectively
mitigate
the
uneven
distribution
of
water
resources
but
can
also
influence
aquatic
biodiversity
and
ecosystem
functions.
Despite
their
importance,
impacts
such
on
multi-domain
microbial
community
dynamics
underlying
mechanisms
remain
poorly
understood.
Utilizing
high-throughput
sequencing,
we
investigated
bacterial,
archaeal,
fungal
along
eastern
route
South-to-North
project
during
both
non-water
period
(NWDP)
(WDP).
Our
findings
revealed
competitive
exclusion
effects
among
bacterial
archaeal
communities
WDP,
characterized
by
decreased
species
richness
increased
biomass,
while
biomass
significantly
declined.
Distance-decay
relationships
suggested
homogenization
WDP.
Robustness
analyses
reduced
stability
with
primarily
influencing
stability,
environmental
factors
had
a
greater
impact
communities.
Stochastic
processes,
homogenizing
dispersal
drift,
intensified
for
Notably,
only
functional
diversity
relative
abundance
chemoheterotrophic
organic
compound
catabolic
bacteria
declined
photoautotrophic
bacteria.
PLS-PM
indicated
that
shaped
assembly
processes
guilds,
whereas
This
study
enhances
our
understanding
WDP
underscores
importance
assessing
direct
resulting
fluctuations.
