Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
283, С. 116811 - 116811
Опубликована: Июль 30, 2024
In
this
work,
the
relationship
and
kinetics
of
biodegradation
bio-adsorption
benzo[a]pyrene
(BaP)
by
Bacillus
Ascomycota
were
explored,
metabolites
BaP
under
mixed
microbial
coculture
analyzed
characterized.
The
results
show
that
was
removed
through
both
biosorption
biodegradation.
Under
coculture,
played
a
significant
role
in
early
stage
predominant
later
stage.
During
removal
BaP,
fungi
exhibited
remarkable
adsorption
capabilities
for
with
an
efficiency
(AE)
38.14
%,
while
bacteria
had
best
degradation
(DE)
56.13
%.
culture,
(RE)
synergistic
action
reached
up
to
76.12
%
within
15
days.
Kinetics
analysis
illustrated
process
well
fit
first-order
pseudo-second-order
kinetic
models,
respectively.
research
on
between
during
as
effects
bacteria,
will
provide
theoretical
guidance
two
or
even
synthetic
communities.
Environmental Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 14, 2025
Polycyclic
aromatic
hydrocarbons
(PAHs)
are
toxic
and
persistent
pollutants
that
widely
distributed
in
the
environment.
PAHs
to
microorganisms
pose
ecological
risks.
Bacteria
encode
enzymes
for
PAH
degradation
through
specific
genes,
thereby
mitigating
pollution.
However,
due
PAHs'
complexity,
information
on
global
potential,
diversity,
associated
risks
of
PAH-degrading
microbes
soils
is
lacking.
In
this
study,
we
analyzed
121
genes
selected
33
as
marker
predict
potential
within
soil
microbiome.
By
constructing
a
Hidden
Markov
Model,
identified
4990
species
carrying
40,039
metagenomic
assembly
genomes,
with
Burkholderiaceae
Stellaceae
emerging
high-potential
degraders.
We
demonstrated
candidate
degraders
predominantly
emerged
artificial
farmland,
significantly
fewer
present
extreme
environments,
driven
by
factors
such
average
annual
rainfall,
organic
carbon,
human
modification
terrestrial
systems.
Furthermore,
comprehensively
quantified
each
host
future
practical
applications
using
three
indicators
(antibiotic
resistance
virulence
factors,
pathogenic
bacteria).
found
degrader
has
significant
application
prospects.
Our
research
will
help
determine
biosynthetic
globally
further
identify
bacteria
at
lower
risk.
