Abstract
The
agricultural
sector
plays
a
crucial
role
in
global
food
security,
yet
its
heavy
reliance
on
chemical
inputs
has
led
to
rise
emerging
contaminants
modern
agroecosystems.
This
review
critically
examines
the
impacts
of
these
soil
health,
plant-soil
interactions,
and
productivity.
We
highlight
how
xenobiotic
compounds
from
pesticides,
herbicides,
antibiotics,
fertilizers
disrupt
nutrient
cycling
microbial
communities.
Key
contaminant
classes,
including
pharmaceuticals,
industrial
pollutants,
were
discussed
alongside
their
specific
effects
ecosystems.
Additionally,
this
also
explores
innovative
bio-based
nano-enhanced
remediation
strategies,
such
as
rhizosphere
microbiome
management
nano-biofertilizers,
which
show
promise
mitigating
impacts.
Despite
advancements,
challenges
persist
regulatory
frameworks,
technology
adoption,
education.
To
address
theses
issues,
we
propose
holistic
approach
integrating
research,
policy,
stakeholder
engagement.
Our
findings
urgent
need
for
sustainable
practices
that
prioritize
health
ecosystem
integrity
ensure
long-term
security.
Graphical
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Ноя. 19, 2024
Soil
is
an
important
reservoir
of
antibiotic
resistance
genes
(ARGs)
and
understanding
how
corresponding
environmental
changes
influence
their
emergence,
evolution,
spread
crucial.
The
soil-dwelling
bacterial
genus
Listeria,
including
L.
monocytogenes,
the
causative
agent
listeriosis,
serves
as
a
key
model
for
establishing
this
understanding.
Here,
we
characterize
ARGs
in
594
genomes
representing
19
Listeria
species
that
previously
isolated
from
soils
natural
environments
across
United
States.
Among
five
putatively
functional
identified,
lin,
which
confers
to
lincomycin,
most
prevalent,
followed
by
mprF,
sul,
fosX,
norB.
are
predominantly
found
sensu
stricto
species,
with
those
more
closely
related
monocytogenes
tending
harbor
ARGs.
Notably,
phylogenetic
recombination
analyses
provide
evidence
recent
horizontal
gene
transfer
(HGT)
all
within
and/or
likely
mediated
transformation
rather
than
conjugation
transduction.
In
addition,
richness
genetic
divergence
associated
conditions,
particularly
soil
properties
(e.g.,
aluminum
magnesium)
surrounding
land
use
patterns
forest
coverage).
Collectively,
our
data
suggest
HGT
selection
play
vital
role
acquisition
diversification
environments.
It
remains
elusive
evolves
spreads.
Goh
et
al.
analyzed
nationwide
genomic
dataset
find
acting
on
evolution
Environment International,
Год журнала:
2024,
Номер
184, С. 108482 - 108482
Опубликована: Фев. 1, 2024
Glacier
ice,
cryoconite,
and
glacier-fed
streams
are
interconnected
features
that
have
important
implications
for
the
dynamics
distribution
of
abiotic
biotic
materials.
However,
presence
behavior
antibiotic
resistance
genes
(ARGs)
within
these
glacial
environments
remained
largely
unexplored.
Addressing
this
gap,
we
hypothesized
ARGs
widely
distributed
exhibit
distinct
yet
patterns
diversity
in
environments.
Here,
investigated
a
mountain
glacier
Central
Asia.
A
total
944
ARGs,
spanning
22
classes,
were
identified,
with
633
shared
across
all
three
Cryoconite
exhibited
highest
ARG
richness,
followed
by
while
stream
biofilm
displayed
lowest
value.
Exploring
profiles,
observed
consistent
pattern
terms
class
mechanism
Beta-lactam
diversity,
multidrug,
glycopeptide,
MLS.
The
predominant
mechanisms
inactivation,
efflux,
target
alteration.
most
prevalent
is
cls,
mdfA,
ropB,
fabI,
macB.
similarity
profiles
between
surface
ice
cryoconite
samples
was
more
pronounced
than
their
resemblance
to
samples.
variations
any
pair
contributed
turnover
component.
Further
insights
into
microbial
interactions
revealed
2328
significant
associations
80
OTUs
356
indicating
complex
relationships.
Certain
OTUs,
including
those
from
genera
Polaromonas,
Ferruginibacter,
Hymenobacter,
Phormidesmis,
Novosphingobium,
Polymorphobacter,
speculated
as
potential
hosts
variety
ARGs.
Our
findings
underscore
intricate
ecosystems,
emphasizing
need
holistic
understanding
distribution,
diverse
environmental
compartments.
This
research
contributes
valuable
ecological
dissemination
cold
environments,
particularly
influenced
increasing
climate
change.
