Jurnal Ilmu Lingkungan,
Год журнала:
2023,
Номер
22(3), С. 571 - 579
Опубликована: Окт. 24, 2023
Triclocarban,
an
antimicrobial
agent
used
in
pharmaceutical
and
personal
care
products,
is
incompletely
degraded
during
wastewater
treatment.
However,
very
little
information
about
biodegradation
has
been
published.
This
study
the
first
to
describe
triclocarban
toxicity
reduction
using
Sphingobacterium
sp.
MC43,
a
recently
discovered
plant-growth-promoting
bacterium.
MC43
newly
isolated
strain
from
agricultural
soil
with
history
of
pesticide
use.
The
vitro
characterizations
showed
that
could
use
as
only
carbon
source
at
high
concentration
(30
μM),
whereas
phytotoxicity
assays
were
evaluate
detoxification
triclocarban.
Triclocarban
30
μM
was
50%
less
than
72
hours.
able
degrade
more
effectively
recognition
additional
sources
like
acetate,
carboxymethyl
cellulose,
succinic
acid
well
nitrogen
sodium
acetate
urea.
Concerned
triclocarban's
harmful
effects
on
plants,
Vigna
radiata
how
can
reduce
toxicity.
exposure
caused
damage
plant,
bioaugmentation
significantly
reduced
this
damage.
likely
because
bacteria's
biomass
degrading
power
have
grown.
These
results
imply
bioremediation
efficiency
potentially
reducing
uptake
radiata.
Frontiers in Microbiology,
Год журнала:
2023,
Номер
14
Опубликована: Март 30, 2023
Triclocarban
(TCC),
an
emerging
organic
contaminant
(EOC),
has
become
a
severe
threat
to
soil
microbial
communities
and
ecological
security.
Here,
the
TCC-degrading
strain
Rhodococcus
rhodochrous
BX2
DCA-degrading
Pseudomonas
sp.
LY-1
(together
referred
as
TC1)
were
immobilized
on
biochar
remove
TCC
its
intermediates
in
TCC-contaminated
soil.
High-throughput
sequencing
was
used
investigate
community
structure
Analysis
of
co-occurrence
networks
explore
mutual
relationships
among
microbiome
members.
The
results
showed
that
TC1
significantly
increased
removal
efficiency
from
84.7
92.7%
compared
CK
(no
cells
biochar)
10
mg/L
liquid
medium.
utilization
also
accelerated
contaminated
Microbial
analysis
revealed
crucial
microorganisms
their
functional
enzymes
participating
degradation
Moreover,
internal
labor
division
patterns
connections
microbes,
with
focus
strains
LY-1,
unraveled
by
analysis.
This
work
provides
promising
strategy
facilitate
bioremediation
soil,
which
potential
application
value
for
sustainable
biobased
economies.
Ecotoxicology and Environmental Safety,
Год журнала:
2023,
Номер
263, С. 115261 - 115261
Опубликована: Июль 15, 2023
Biodegradation
of
triphenyl
phosphate
(TPHP)
by
Sphingopyxis
sp.
GY
was
investigated,
and
results
demonstrated
that
TPHP
could
be
completely
degraded
in
36
h
with
intracellular
enzymes
playing
a
leading
role.
This
study,
for
the
first
time,
systematically
explores
effects
typical
brominated
flame
retardants,
organophosphorus
heavy
metals
on
degradation.
Our
findings
reveal
TCPs,
BDE-47,
HBCD,
Cd
Cu
exhibit
inhibitory
The
hydrolysis-,
hydroxylated-,
monoglucosylated-,
methylated
products
glutathione
(GSH)
conjugated
derivative
were
identified
new
degradation
pathway
mediated
microorganism
proposed.
Moreover,
toxicity
evaluation
experiments
indicate
significant
reduction
following
treatment
GY.
To
evaluate
its
potential
environmental
remediation,
we
conducted
bioaugmentation
using
contaminated
water-sediment
system,
which
resulted
excellent
remediation
efficacy.
Twelve
intermediate
detected
including
observation
derivative,
monoglucosylated
product,
(OH)2-DPHP
CH3-O-DPHP
time
microorganism-mediated
transformation.
We
further
identify
active
microbial
members
involved
within
system
metagenomic
analysis.
Notably,
most
these
found
to
possess
genes
related
These
highlight
achieved
through
beneficial
interactions
cooperation
established
between
introduced
indigenous
populations
stimulated
bacteria.
Thus,
our
study
provides
valuable
insights
into
mechanisms,
co-existed
pollutants,
transformation
pathways,
associated
biodegradation,
paving
way
future
research
applications
strategies.
Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Июнь 7, 2024
Biodegradation
was
considered
a
promising
and
environmentally
friendly
method
for
treating
environmental
pollution
caused
by
diuron.
However,
the
mechanisms
of
biodegradation
diuron
required
further
research.
In
this
study,
degradation
process
Achromobacter
xylosoxidans
SL-6
systematically
investigated.
The
results
suggested
that
antioxidant
system
strain
activated
adding
diuron,
thereby
alleviating
their
oxidative
stress
response.
addition,
product
analysis
showed
in
mainly
degraded
urea
bridge
cleavage,
dehalogenation,
deamination,
ring
opening,
finally
cis,
cis
-muconic
acid
generated.
combined
metabolomics
transcriptomics
revealed
adaptation
mechanism
to
Metabolomics
after
exposed
metabolic
pathways
such
as
tricarboxylic
cycle
(
acid),
glutathione
metabolism
(oxidized
glutathione),
(arginine)
were
reprogrammed
cells.
Furthermore,
could
induce
production
membrane
transport
proteins
cells
overexpress
enzyme
genes,
ultimately
promoting
up-regulation
genes
encoding
amide
hydrolases
dioxygenases,
which
studies.
This
work
enriched
phenylurea
herbicides
provided
guidance
removal
residues
environment
agriculture
sustainable
development.
An
advancement
in
present-day
science,
especially
the
fields
of
technology,
agriculture
and
allied
sectors,
has
led
to
over-abuse
a
plethora
chemical
compounds.
The
chemicals
are
either
naturally
or
anthropogenically
released
into
surrounding
matrices
like
water
bodies,
soil
air,
thereby
severely
contaminating
them.
Diverse
properties
these
pollutants
pose
challenge
their
degradation
using
physical
means.
However,
microorganisms
have
turned
out
be
effective
means
for
removal
due
assimilation
detoxification
potential
contaminants
as
food
sources.
Using
several
enzymes,
they
also
found
convert
poisonous
forms
less-toxic
kinds,
process
called
biotransformation.
Furthermore,
methods
biostimulation
genetic
engineering
increase
bioremediation.
While
indigenous
remediation
involves
biodegradation
by
stimulating
localized
microflora,
exogenous
method
relies
on
inoculation
potent
externally
site
pollution.
Ample
bacteria,
fungi,
microalgae,
etc.,
been
discovered
studied
bioremediation
capacity.
They
known
employ
many
which
help
efficient
defragmentation
This
chapter
deals
with
such
microbial
inoculants
enzymatic
systems
that
aid
some
major
pollutants.
