Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Aug. 2, 2023
Abstract
Degradation,
detoxification
or
removal
of
the
omnipresent
polycyclic
aromatic
hydrocarbons
(PAHs)
from
ecosphere
as
well
their
prevention
entering
into
food
chain
has
never
appeared
simple.
In
this
context,
cost-effective,
eco-friendly
and
sustainable
solutions
like
microbes-mediated
strategies
have
been
adopted
worldwide.
With
connection,
measures
taken
by
multifarious
modes
microbial
remedial
strategies,
i.e.,
enzymatic
degradation,
biofilm
biosurfactant
production,
application
biochar
immobilized
microbes,
lactic
acid
bacteria,
rhizospheric-phyllospheric-endophytic
microorganisms,
genetically
engineered
fuel
cell
techniques
etc.
review,
a
nine-way
directional
approach
which
is
based
on
resources
reported
over
last
couple
decades
described.
Fungi
found
most
dominant
taxa
among
CPAH-degrading
community
constituting
52.2%,
while
algae
yeasts
occupied
37.4%,
9.1%
1.3%,
respectively.
addition
to
these,
category-wise
CPAH
degrading
efficiencies
each
taxa,
consortium-based
applications,
CPAH-degradation
related
molecular
tool,
factors
affecting
are
other
important
aspects
review
in
light
appropriate
selection
PAH-contaminated
environment
for
better
human-health
management
order
achieve
ecosystem.
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(4), P. 2058 - 2068
Published: Jan. 17, 2024
Substituted
polycyclic
aromatic
hydrocarbons
(sub-PAHs)
are
receiving
increased
attention
due
to
their
high
toxicity
and
ubiquitous
presence.
However,
the
accumulation
behaviors
of
sub-PAHs
in
crop
roots
remain
unclear.
In
this
study,
mechanism
was
systematically
disclosed
by
hydroponic
experiments
from
perspectives
utilization,
uptake,
elimination.
The
obtained
results
showed
an
interesting
phenomenon
that
despite
not
having
strongest
hydrophobicity
among
five
sub-PAHs,
nitro-PAHs
(including
9-nitroanthracene
1-nitropyrene)
displayed
potential
legume
plants,
including
mung
bean
soybean.
nitrogen-deficient
experiments,
inhibitor
transcriptomics
analysis
reveal
could
be
utilized
legumes
as
a
nitrogen
source,
thus
being
significantly
absorbed
active
transport,
which
relies
on
amino
acid
transporters
driven
H+-ATPase.
Molecular
docking
simulation
further
demonstrates
nitro
group
is
significant
determinant
interaction
with
transporter.
Moreover,
depuration
indicate
may
enter
root
cells,
slowing
elimination
rates
enhancing
roots.
Our
shed
light
previously
unappreciated
for
affect
biogeochemical
processes
soils.
