Ecotoxicology and Environmental Safety,
Год журнала:
2025,
Номер
292, С. 117983 - 117983
Опубликована: Март 1, 2025
Considering
the
sensitivity
of
rare
microbial
taxa
to
environmental
disturbances
and
their
critical
roles
in
ecosystems,
it
is
essential
investigate
how
soil
communities
(particularly
microbes)
respond
pesticide
exposure.
In
this
study,
we
found
that
thiazole
pesticides
significantly
reduced
severity
potato
common
scab
effectively
disrupted
pathogen's
cell
membrane
integrity.
Notably,
hierarchical
partitioning
analysis
indicated
geocaulosphere
constitute
key
clusters
influencing
disease
incidence.
Within
bacterial
molecular
ecological
networks,
nodes
corresponding
these
generally
exhibited
higher
degrees
compared
those
more
abundant
taxa.
However,
exposure
number
keystone
substantially
weakened
hub
status
networks.
These
findings
suggest
that,
although
eradicate
pathogens,
they
may
also
pose
a
non-negligible
potential
risk
agricultural
ecosystems.
Abstract
Global
changes
such
as
seawater
intrusion
and
freshwater
resource
salinization
increase
environmental
stress
imposed
on
the
aquatic
microbiome.
A
strong
predictive
understanding
of
responses
microbiome
to
will
help
in
coping
with
“gray
rhino”
events
environment,
thereby
contributing
an
ecologically
sustainable
future.
Considering
that
microbial
ecological
networks
are
tied
stability
ecosystem
functioning
abundant
rare
biospheres
different
biogeographic
patterns
important
drivers
functioning,
roles
maintaining
need
be
clarified.
Here
we
showed
that,
increasing
salinity
induced
by
freshwater‐to‐seawater
transition,
diversity
reduced
significantly
taxonomic
structure
experienced
a
succession.
The
complexity
were
diminished
stress.
composition
microorganisms
supporting
underwent
sharp
turnovers
during
biosphere
behaving
more
robustly
than
biosphere.
Notably,
played
much
role
stabilizing
under
low‐stress
environments,
but
difference
between
their
relative
importance
narrowed
stress,
suggesting
weakened
“Matthew
effect”
world.
With
in‐depth
insights
into
ecology
our
findings
highlight
adjusting
conservation
strategies
for
maintain
functions
services
response
rising
Environmental Microbiology Reports,
Год журнала:
2022,
Номер
14(6), С. 833 - 849
Опубликована: Окт. 2, 2022
Abstract
Soils
are
a
main
repository
of
biodiversity
harbouring
immense
diversity
microbial
species
that
plays
central
role
in
fundamental
ecological
processes
and
acts
as
the
seed
bank
for
emergence
plant
microbiome
cropland
ecosystems.
Crop‐associated
microbiomes
play
an
important
shaping
performance,
which
includes
but
not
limited
to
nutrient
uptake,
disease
resistance,
abiotic
stress
tolerance.
Although
our
understanding
structure
function
soil
has
been
rapidly
advancing,
most
knowledge
comes
from
ecosystems
natural
environment.
In
this
review,
we
present
overview
current
communities
along
soil–plant
continuum
agroecosystems.
To
characterize
mechanisms
community
assembly
crop
microbiomes,
explore
how
host
environmental
factors
such
developmental
stage,
pathogen
invasion,
land
management
shape
structure,
co‐occurrence
patterns,
crop‐microbiome
interactions.
Particularly,
relative
importance
deterministic
stochastic
is
illustrated
under
different
conditions,
potential
sources
keystone
taxa
described.
Finally,
highlight
few
questions
perspectives
future
research.
Environment International,
Год журнала:
2025,
Номер
195, С. 109272 - 109272
Опубликована: Янв. 1, 2025
Soil
biodiversity
underpins
multiple
ecosystem
functions
and
services
essential
for
human
well-being.
Understanding
the
determinants
of
biodiversity-ecosystem
function
relationships
(BEFr)
is
critical
conservation
management
soil
ecosystems.
Community
assembly
processes
determine
community
diversity
structure.
However,
there
remains
limited
systematic
research
on
how
organismal
groups
affect
through
their
influence
species
interactions.
Here,
we
analyzed
331
samples
from
different
land-use
types
(cropland,
forest,
grassland)
in
Qinling-Daba
Mountains
to
investigate
drivers,
processes,
network
stability
multitrophic
organisms.
High-throughput
sequencing
was
used
examine
archaea,
bacteria,
fungi,
algae,
protozoa,
invertebrates,
while
enzyme
activity
assays
were
assess
multifunctionality
related
nutrient
provisioning.
Our
results
indicated
that
biotic
factors
contributed
62.81-94.97
%
α-diversity
4.19-52.37
β-diversity
organisms,
even
when
considering
abiotic
factors.
Protozoan
α-
most
significantly
explained
invertebrates
ecosystems,
serving
as
important
indicators
assessing
health.
Furthermore,
prokaryotes
primarily
governed
by
stochasticity
(>50
%),
whereas
those
eukaryotic
dominated
deterministic
(<50
%).
Diversity
increased
with
greater
bacterial
communities
where
stochastic
predominated.
Conversely,
fungal
protozoan
decreased
intensified.
Importantly,
enhanced
increasing
α-diversity,
β-diversity,
stability.
These
findings
provide
valuable
insights
into
regulation
BEFr
processes.
Future
should
further
explore
role
these
functioning
under
change
scenarios.
