Microplastics affect ecosystem multifunctionality: Increasing evidence from soil enzyme activities
Land Degradation and Development,
Год журнала:
2024,
Номер
35(15), С. 4379 - 4405
Опубликована: Июль 22, 2024
Abstract
Microplastics
(MPs)
as
emerging
contaminants
have
a
global
occurrence,
including
both
terrestrial
and
marine
ecosystems.
Soil
enzymes
contribute
to
maintaining
ecosystem
multifunctionality,
for
example,
nutrient
cycling,
organic
material
decomposition,
carbon
climate
regulation.
Our
present
review
highlights
the
impacts
of
MPs
on
soil
enzyme
activities,
influencing
factors,
underlying
mechanisms.
Increasing
findings
confirm
that
can
change
activities
range
involved
in
biogeochemical
cycling
C
N.
However,
current
results
are
highly
controversial.
The
effects
vary
from
significant
nonsignificant
dependent
polymer
type,
biodegradability,
dosage,
size,
shape,
aging
degree
MPs,
exposure
conditions.
Compared
traditional
biodegradable
generally
show
more
pronounced
effects.
via
different
pathways.
On
one
hand,
directly
structure,
leading
alterations
activity.
other
create
unique
habitats,
provide
sources
specific
functional
microbes
producing
enzymes,
release
plastic
additives
pollutants
disturbing
production
these
enzymes.
Furthermore,
alter
physicochemical
biological
properties,
availability
substrates,
plants
fauna,
regulating
their
functions.
In
conclusion,
regulate
pose
profound
impact
multifunctionality.
Язык: Английский
Small-size polyethylene and polylactic microplastic alterations on soil aggregate formation with soil sterilization
Chemosphere,
Год журнала:
2024,
Номер
364, С. 143158 - 143158
Опубликована: Авг. 23, 2024
Язык: Английский
Organic matter and microplastics nexus: A comprehensive understanding of the synergistic impact on soil health
The Science of The Total Environment,
Год журнала:
2025,
Номер
978, С. 179420 - 179420
Опубликована: Апрель 16, 2025
Язык: Английский
Mitigating the detrimental impacts of low- and high-density polyethylene microplastics using a novel microbial consortium on a soil-plant system: Insights and interactions
Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
283, С. 116805 - 116805
Опубликована: Авг. 3, 2024
The
accumulation
of
polyethylene
microplastics
(PE-MPs)
in
soil
has
raised
considerable
concerns;
however,
the
effects
their
persistence
and
mitigation
on
agroecosystems
have
not
been
explored.
This
study
aimed
to
assess
detrimental
PE-MPs
a
soil-plant
system
evaluate
using
novel
microbial
consortium
(MC).
We
incorporated
low-density
(LDPE)
high-density
(HDPE)
at
two
different
concentrations,
along
with
control
(0
%,
1
2
%
w/w)
into
sandy
loam
for
duration
135
days.
samples
were
also
treated
MC
incubated
comprised
three
bacterial
strains
(Ralstonia
pickettii
(MW290933)
strain
SHAn2,
Pseudomonas
putida
ShA,
Lysinibacillus
xylanilyticus
XDB9
(T)
S7-10F),
fungal
(Aspergillus
niger
F1-16S).
Sunflowers
subsequently
cultivated,
physiological
growth
parameters
measured.
results
showed
that
adding
LDPE
significantly
decreased
pH
by
1.06
units
compared
control.
Moreover,
HDPE
resulted
more
significant
decrease
electrical
conductivity
(EC)
relative
A
dose-dependent
increase
dissolved
organic
carbon
(DOC)
was
observed,
highest
DOC
found
LDPE.
addition
higher
dosages
reduced
bulk
density
(BD)
than
HDPE.
increased
water
drop
penetration
time
(WDPT)
but
mean
weight
diameter
aggregates
(MWD)
water-stable
(WSA)
revealed
levels
enhanced
basal
respiration
(BR)
biomass
(MBC).
interaction
MP
percentages
considerably
pH,
EC,
BD,
WDPT
DOC,
MWD,
WSA,
BR,
MBC.
Regarding
plant
growth,
incorporating
responses
sunflower:
chlorophyll
content
(Chl;
-15.2
%),
Fv/Fm
ratio
(-25.3
shoot
dry
(ShD;
-31.3
root
(RD;
-40
leaf
area
(LA;
-38.4
stem
(StemD;
-25
%)
control;
ameliorated
harmful
investigated
responses.
Язык: Английский
Planting Enhances Soil Resistance to Microplastics: Evidence from Carbon Emissions and Dissolved Organic Matter Stability
Environmental Science & Technology,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 19, 2024
Microplastics
(MPs)
have
become
a
global
hotspot
due
to
their
widespread
distribution
in
recent
years.
MPs
frequently
interact
with
dissolved
organic
matter
(DOM)
and
microbes,
thereby
influencing
the
carbon
fate
of
soils.
However,
role
plant
presence
regulating
MPs-mediated
changes
DOM
microbial
structure
remains
unclear.
Here,
we
compared
mechanisms
soil
response
3
common
nonbiodegradable
absence
or
radish
(Raphanus
sativus
L.
var.
radculus
Pers)
plants.
Fourier
transform
ion
cyclotron
resonance
mass
spectrometry
(FT-ICR-MS)
analysis
revealed
that
reduced
chemodiversity
biodiversity
(DOM).
enhanced
degradation
lignin-like
compounds
stability.
Comparative
showed
caused
less
disturbance
composition
metabolism
planted
than
unplanted
soil.
In
soil,
stimulated
fermentation
while
upregulating
photoautotrophic
activity
enhancing
system
The
rhizosphere
effect
mitigated
MPs-induced
CO2
emissions.
Overall,
our
study
highlights
crucial
effects
maintaining
ecosystem
stability
under
microbe-DOM-pollutant
interactions,
which
provides
theoretical
basis
for
predicting
resistance,
resilience,
transitions
upon
exposure
anthropogenic
source.
Язык: Английский