Water,
Journal Year:
2024,
Volume and Issue:
16(19), P. 2793 - 2793
Published: Sept. 30, 2024
Affected
by
point
and
non-point
source
pollution,
the
Fenhe
River
Basin
faces
significant
environmental
challenges.
This
study
aimed
to
analyze
distribution
characteristics
influencing
factors
of
antibiotics
in
water
sediments
Basin.
Samples
were
collected
from
23
sites
within
basin,
26
five
different
classes
detected
analyzed
using
high-performance
liquid
chromatography–tandem
mass
spectrometry
(HPLC-MS/MS).
The
water–sediment
partition
coefficient
(Kp)
was
calculated,
spatial
analysis
conducted
geographic
information
system
(GIS)
technology.
results
showed
that
25
water,
with
concentrations
ranging
130
1615
ng/L,
17
sediments,
121
426
μg/kg.
For
quinolones
(QNs),
except
for
ofloxacin,
all
others
could
be
calculated
overall
high
values
Kp
692
16,106
L/kg.
QNs
generally
higher
midstream,
considerable
pollution
industries
developed
agriculture.
is
closely
associated
risk.
found
influenced
various
such
as
temperature,
flow,
physicochemical
properties
sediments.
Correlation
revealed
relationships
between
parameters
river
width,
depth,
quality
(total
nitrogen,
total
phosphorus,
chemical
oxygen
demand),
sediment
pH
clay
content.
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
946, P. 174143 - 174143
Published: June 20, 2024
Antibiotic
resistance
genes
(ARGs)
are
a
growing
problem
that
is
widespread
in
river-lake
ecosystems,
where
they
pose
threat
to
the
aquatic
environment's
health
and
public
safety.
These
systems
serve
as
critical
nodes
water
management,
facilitate
equitable
allocation
of
resources
through
long-term
frequent
diversions.
However,
hydrological
disturbances
associated
with
water-regulation
practices
can
influence
dynamics
their
potential
host
microorganisms
genes.
Consequently,
identifying
key
ARGs
mechanisms
heavily
regulated
waters
vital
for
safeguarding
human
ecosystems.
In
this
study,
we
examined
impact
factors
on
hosts
within
continuum
using
16S
rRNA
metagenomic
sequencing.
We
found
significant
increase
ARG
abundance
during
regulation
periods
(p
<
0.05),
especially
environment.
Key
were
macB,
tetA,
evgS,
novA,
msbA,
increased
efflux
pinpointed
principal
mechanism.
Network
analysis
identified
Flavobacteriales,
Acinetobacter,
Pseudomonas,
Burkholderiaceae,
Erythrobacter
microorganisms,
which
showed
column
0.05).
Flow
velocity
depth
both
drove
ARGs.
Our
findings
underscore
importance
monitoring
mitigating
antibiotic
risk
transfers
systems,
thereby
supporting
informed
management
conservation
strategies.
Ecotoxicology and Environmental Safety,
Journal Year:
2025,
Volume and Issue:
291, P. 117832 - 117832
Published: Feb. 1, 2025
The
escalating
issue
of
water
pollution,
especially
the
accumulation
organic
off-flavor
pollutants,
poses
significant
challenges.
Geosmin,
a
typical
compound
in
aquatic
environments,
not
only
compromises
quality
products
but
also
deters
consumers.
Its
impact
extends
to
organisms,
with
current
research
focusing
on
dose-response
and
ecotoxicity,
while
neglecting
molecular-level
study
geosmin-binding
proteins.
This
employs
an
integrated
approach
combing
affinity-responsive
target
stability
vitro,
tandem
mass
tag
proteomics
vivo,
molecular
docking
identify
proteins
gill
tissue
grass
carp
(Ctenopharyngodon
idella).
ARTS
analysis
identified
56
proteins,
predominantly
membrane-associated
such
as
catenin
beta-1,
annexin,
integrin
beta.
Proteomic
revealed
256
differentially
expressed
geosmin-exposure
group,
18
common
screened
by
vivo
vitro
methods.
Among
these,
cathepsin
D,
interleukin-1
receptors
were
highlighted
potential
geosmin
targets,
annexin
demonstrating
highest
binding
affinity
silico.
provides
robust
protocol
integrating
silico
approaches
elucidate
geosmin's
tissue,
advancing
our
understanding
pollutant-biological
interactions
enhancing
environmental
risk
assessment
accuracy.
Ecotoxicology and Environmental Safety,
Journal Year:
2025,
Volume and Issue:
291, P. 117919 - 117919
Published: Feb. 1, 2025
Overuse
of
antibiotics
such
as
sulfonamide
(SA)
has
led
to
their
excess
existence
in
water
environment,
which
would
threaten
ecological
security
and
human
health.
In
this
study,
the
resistance
three
plants
SA
was
systematically
studied.
The
relative
growth
rate
(RGR)
Pistia
stratiotes
L.
remained
around
55
%
without
significant
changes
when
concentration
increased
from
0
30
mg/L,
Canna
indica
Eichhornia
crassipes
decrease,
showing
best
stress
This
property
will
be
beneficial
for
relieving
toxicity
wastewater
treatment.
study
identified
that
aquatic
promoted
removal
through
action
microorganisms
rather
than
absorption
decomposition
by
plant
itself.
Additionally,
presence
inhibited
plants,
resulted
increases
peroxidase,
catalase,
superoxide
dismutase
activities,
hydrogen
peroxide
contents
leaves.
abundance
Pedobacter
greater
high.
glucosidilyticus
tolerant
high
concentrations
SA.
Overall,
provides
insight
into
antibiotic
screening
with
stress.
