Sustainability,
Journal Year:
2023,
Volume and Issue:
15(6), P. 5361 - 5361
Published: March 17, 2023
Silicon
(Si)
and
selenium
(Se)
have
been
found
to
reduce
chromium
(Cr)
toxicity
in
plants,
which
is
important
for
crop
production
human
health.
However,
there
limited
understanding
of
the
interaction
between
Si
Se
mitigating
Cr
its
mechanisms.
This
study
investigated
impact
on
Cr-treated
Chinese
cabbage
growth,
content,
biochemical
parameters
a
hydroponic
experiment.
The
results
showed
that
both
effectively
alleviate
strong
synergistic
effect.
They
reduced
content
by
73.99%
increased
photosynthetic
pigments
62.50%
47.51%,
respectively.
Antioxidant
enzyme
activity
28.20
21.37%,
while
non-enzyme
antioxidants
such
as
proline
GSH
decreased
27.44
28.51%.
It
was
observed
addition
under
stress
resulted
29.58
134.37%
increase
soluble
protein
sugar,
respectively,
well
improved
nutrient
contents
(N,
P,
K,
Ca,
Mg).
suggests
can
improve
physiological
ecology
cabbage,
reducing
effects
contributing
global
control
heavy
metal
pollution
food
crops.
Frontiers in Plant Science,
Journal Year:
2023,
Volume and Issue:
13
Published: Jan. 13, 2023
In
recent
decades,
environmental
pollution
with
chromium
(Cr)
has
gained
significant
attention.
Although
can
exist
in
a
variety
of
different
oxidation
states
and
is
polyvalent
element,
only
trivalent
[Cr(III)]
hexavalent
[Cr(VI)]
are
found
frequently
the
natural
environment.
current
review,
we
summarize
biogeochemical
procedures
that
regulate
Cr(VI)
mobilization,
accumulation,
bioavailability,
toxicity
soils,
probable
risks
to
ecosystem
also
highlighted.
Plants
growing
Cr(VI)-contaminated
soils
show
reduced
growth
development
lower
agricultural
production
quality.
Furthermore,
exposure
causes
oxidative
stress
due
free
radicals
which
modifies
plant
morpho-physiological
biochemical
processes
at
tissue
cellular
levels.
However,
plants
may
develop
extensive
physiological
defensive
mechanisms
response
ensure
their
survival.
To
cope
toxicity,
either
avoid
absorbing
from
soil
or
turn
on
detoxifying
mechanism,
involves
producing
antioxidants
(both
enzymatic
non-enzymatic)
for
scavenging
reactive
oxygen
species
(ROS).
Moreover,
this
review
highlights
knowledge
remediation
approaches
i.e.,
bioremediation/phytoremediation,
by
using
microbes
exogenous
use
organic
amendments
(biochar,
manure,
compost),
nano-remediation
supplements,
significantly
remediate
soil/water
lessen
possible
health
challenges.
Future
research
needs
gaps
covered.
The
review’s
observations
should
aid
creative
useful
methods
limiting
sustainably
managing
Cr(VI)-polluted
soils/water,
clear
understanding
mechanistic
basis
signaling
pathways,
tolerance
mechanisms;
hence
reducing
its
hazards
RSC Advances,
Journal Year:
2023,
Volume and Issue:
13(10), P. 6713 - 6736
Published: Jan. 1, 2023
In
this
review,
the
preparation
of
magnetic
chitosan,
adsorption
performance
modified
chitosan
materials
on
heavy
metal
ions,
and
mechanism
are
classified
summarized.
Sustainability,
Journal Year:
2022,
Volume and Issue:
14(20), P. 13223 - 13223
Published: Oct. 14, 2022
Screening
various
plant
species
to
act
as
hyperaccumulators
and
associated
health
risks
could
serve
a
sustainable
solution
for
the
bioremediation
heavy
metals
(HMs).
For
first
time,
present
study
explored
phytoremediation
potential
of
native
plants,
soil
enrichment,
human
with
contamination
HMs
in
samples
collected
from
municipal
solid-waste
open
dump
site.
Soil
(n
=
18
+
18)
dumpsite
control
site
were
analyzed
selected
HMs,
i.e.,
Chromium
(Cr),
Lead
(Pb),
Nickel
(Ni),
Iron
(Fe),
Zinc
(Zn).
The
plants
was
assessed
using
bioaccumulation
factor
(BAF),
coefficient
(BAC),
translocation
(TF),
while
pollution
levels
evaluated
(CF),
geoaccumulation
index
(Igeo),
enrichment
(EF),
ecological
risk
(PERI),
indices.
results
revealed
that
based
on
TF
BAC
values,
Alhagi
maurorum
Medic.,
Astragalus
creticus
Lam.,
Cichorium
intybus
L.,
Berberis
lycium
Royle,
Datura
stramonium
L.
Cr
Parthenium
hysterophorus
promising
both
Ni
Cr.
Similarly,
CF
values
Fe,
Ni,
Pb,
>6,
thereby
showing
very
high
contamination,
Igeo
(class
6,
>5),
extremely
polluted.
Furthermore,
EF
Cr,
Zn
2
<
≤
5,
depicting
moderate
PERI
range
91.31–195.84,
employing
(95
190)
dumpsite’s
soil.
Moreover,
non-carcinogenic
exposure,
none
exceeded
threshold
limit
HRI
>
1
adults
children.
Likewise,
case
carcinogenic
effects,
CRI
lower
than
tolerable
limits
(1
×
10−6–1
10−4)
almost
all
studied
be
utilized
phytoextraction
mentioned
HMs.
In
future,
can
help
implementation
public
policies
ensure
sustainability
developmental
activities
contaminated
sites.
Based
these
results,
it
is
concluded
there
dire
need
monitoring
solid
waste
dumpsites
due
types
minimize
problems
arising
dumpsite,
substantive
special
attention
should
paid
work
eco-friendly
remedial
measures.
