Environment International,
Journal Year:
2023,
Volume and Issue:
176, P. 107964 - 107964
Published: May 10, 2023
The
impact
of
antibiotics
on
methane
(CH4)
release
from
sediment
involves
both
CH4
production
and
consumption
processes.
However,
most
relevant
studies
lack
a
discussion
the
pathways
by
which
affect
do
not
highlight
role
played
chemical
environment
in
this
influence
mechanism.
Here,
we
collected
field
surface
sediments
grouped
them
with
various
antibiotic
combination
concentration
gradients
(50,
100,
500,
1000
ng
g−1)
under
35-day
indoor
anaerobic
constant
temperature
incubation.
We
found
that
positive
effect
potential
appeared
later
than
flux.
Still,
high-concentration
(500,
occurred
lag
Also,
was
significantly
higher
low-concentration
100
incubation
period
(p
<
0.05).
performed
multi-collinearity
assessment
biochemical
indicators,
followed
generalized
linear
model
negative
binomial
regression
(GLM-NB)
to
obtain
essential
variables.
In
particular,
conducted
interaction
analysis
flux
for
construction.
partial
least-squares
path
modeling
(PLS-PM)
demonstrated
(Total
=
0.2579)
primarily
attributed
their
(Direct
0.5107).
These
findings
greatly
expand
our
understanding
greenhouse
freshwater
sediment.
Further
should
more
carefully
consider
effects
environment,
continuously
improve
mechanistic
release.
动物学研究,
Journal Year:
2024,
Volume and Issue:
45(4), P. 910 - 923
Published: Jan. 1, 2024
is
the
most
extensively
cultured
shrimp
species
globally,
recognized
for
its
scale,
production,
and
economic
value.
However,
aquaculture
plagued
by
frequent
disease
outbreaks,
resulting
in
rapid
massive
mortality.
etiological
research
often
lags
behind
emergence
of
new
diseases,
leaving
causal
agents
some
diseases
unidentified
leading
to
nomenclature
based
on
symptomatic
presentations,
especially
cases
involving
co-
polymicrobial
pathogens.
Comprehensive
data
statuses
remain
limited.
In
this
review,
we
summarize
current
knowledge
their
effects
gut
microbiome.
Furthermore,
also
propose
a
workflow
integrating
primary
colonizers,
"driver"
taxa
networks
from
healthy
diseased
states,
disease-discriminatory
taxa,
virulence
genes
identify
potential
We
examine
both
abiotic
biotic
factors
(e.g.,
external
internal
sources
specific-disease
effects)
that
influence
microbiota,
with
an
emphasis
"holobiome"
concept
common
features
microbiota
response
diverse
diseases.
After
excluding
confounding
factors,
provide
diagnosis
model
quantitatively
predicting
incidence
using
common-discriminatory
irrespective
agents.
Due
conservation
functional
used
designing
specific
primers,
practical
strategy
applying
qPCR-assayed
abundances
genes.
This
review
updates
roles
exploring
etiology,
pathogens,
incidence,
offering
refined
perspective
advancing
health
management.
Environment International,
Journal Year:
2023,
Volume and Issue:
178, P. 108126 - 108126
Published: Aug. 1, 2023
In
recent
years,
the
excessive
of
antibiotics
in
livestock
and
poultry
husbandry,
stemming
from
extensive
industry
experience,
has
resulted
accumulation
residual
antibiotic
resistance
genes
(ARGs)
manure.
Composting,
as
a
crucial
approach
for
utilization
manure
resources,
potential
to
reduce
levels
ARGs
manure,
although
complete
elimination
is
challenging.
Previous
studies
have
primarily
focused
on
diversity
abundance
compost
or
solely
examined
correlation
between
their
carriers,
potentially
leading
misjudgment
actual
risk
associated
with
compost.
To
address
this
gap,
study
investigated
transfer
co-occurrence
opportunistic
pathogenic
bacteria
by
extensively
analyzing
metagenomic
sequencing
data
worldwide.
The
results
demonstrated
that
was
significantly
lower
than
suggesting
composting
effectively
reduces
ARGs.
Further
analysis
showed
microbes
shifted
life
history
strategy
due
pressure
formed
metabolic
interactions
dominated
antibiotic-resistant
microbes,
increasing
ARG
dissemination
frequency.
Therefore,
husbandry
practice
without
addition
recommended
control
evolution,
dissemination,
abatement
both
at
source
throughout
processing.
Environmental Science & Technology,
Journal Year:
2022,
Volume and Issue:
57(1), P. 509 - 519
Published: Dec. 20, 2022
Despite
the
high
removal
efficiency
for
chemical
pollutants
by
tertiary
wastewater
treatment
processes
(TWTPs),
there
is
no
definite
conclusion
in
terms
of
microbial
risk
mitigation
yet.
This
study
utilized
metagenomic
approaches
to
reveal
alterations
antibiotic
resistance
genes
(ARGs),
virulence
factor
(VFGs),
their
co-occurrence,
and
potential
hosts
during
multiple
TWTPs.
Results
showed
that
TWTPs
reduced
wastewater,
but
denitrifying
biofilter
(DB)
significantly
increased
absolute
abundances
selected
antibiotic-resistant
bacteria
ARGs,
simultaneously
elevated
relative
ARGs
VFGs
through
enrichment
multidrug
offensive
genes,
respectively.
Moreover,
co-occurrence
(e.g.,
bacA-tapW,
mexF-adeG)
was
only
identified
after
DB
all
carried
Pseudomonas.
Then,
ultraviolet
constructed
wetland
good
complementarity
reduction
mitigating
pathogenicity.
Network
binning
analyses
shift
key
operational
taxonomic
units
affiliating
Pseudomonas
Acinetobacter
may
contribute
dynamic
changes
Overall,
this
sheds
new
light
on
how
affect
resistome
VFG
profiles
what
should
be
mitigation.
