Environmental Science & Technology,
Journal Year:
2023,
Volume and Issue:
57(36), P. 13588 - 13600
Published: Aug. 30, 2023
Although
our
understanding
of
the
effects
microplastics
on
dynamics
soil
organic
matter
(SOM)
has
considerably
advanced
in
recent
years,
fundamental
mechanisms
remain
unclear.
In
this
study,
we
examine
polyethylene
and
poly(lactic
acid)
SOM
processes
via
mineralization
incubation.
Accordingly,
evaluated
changes
carbon
dioxide
(CO2)
methane
(CH4)
production.
An
O2
planar
optical
sensor
was
used
to
detect
temporal
behavior
dissolved
during
incubation
determine
microscale
oxygen
heterogeneity
caused
by
microplastics.
Additionally,
(DOM)
were
using
a
combination
spectroscopic
approaches
ultrahigh-resolution
mass
spectrometry.
Microplastics
increased
cumulative
CO2
emissions
160–613%,
whereas
CH4
dropped
45–503%,
which
may
be
attributed
oxygenated
porous
habitats
surrounding
Conventional
biodegradable
changed
quantities
carbon.
microplastic
treatments,
DOM
with
more
polar
groups
detected,
suggesting
higher
level
electron
transport.
addition,
there
positive
correlation
between
concentration,
electron-donating
ability,
emission.
These
findings
suggest
that
facilitate
modifying
microenvironments,
transport
capability.
study
provides
new
insights
into
impact
dynamics.
The ISME Journal,
Journal Year:
2021,
Volume and Issue:
16(2), P. 521 - 532
Published: Aug. 28, 2021
Abstract
In
the
Anthropocene,
increasing
pervasive
plastic
pollution
is
creating
a
new
environmental
compartment,
plastisphere.
How
plastisphere
affects
microbial
communities
and
antibiotic
resistance
genes
(ARGs)
an
issue
of
global
concern.
Although
this
has
been
studied
in
aquatic
ecosystems,
our
understanding
microbiota
soil
ecosystems
remains
poor.
Here,
we
investigated
ARGs
four
types
microplastics
(MPs)
from
diverse
environments,
revealed
effects
manure,
temperature,
moisture
on
them.
Our
results
showed
that
MPs
select
for
plastisphere,
these
are
involved
metabolic
pathways,
indicating
they
could
drive
ecological
processes
ecosystem.
The
relationship
within
bacterial
zero-radius
operational
taxonomic
units
(zOTUs)
was
predominantly
positive,
neutral
appeared
to
dominate
community
assembly.
However,
deterministic
were
more
important
explaining
variance
plastispheres.
A
range
potential
pathogens
detected
which
enriched
compared
but
varied
across
types.
We
further
found
addition
manure
elevation
temperature
all
enhance
plastispheres,
increase
with
moisture.
These
suggested
plastispheres
habitats
increased
pathogen
abundance
spatially
co-located
under
change.
findings
provided
insights
into
ecology
microbiome
resistome
