Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: March 12, 2024
Abstract
Lead
(Pb)
is
toxic
to
the
development
and
growth
of
rice
plants.
Nanoparticles
(NPs)
have
been
considered
one
efficient
remediation
techniques
mitigate
Pb
stress
in
Therefore,
a
study
was
carried
out
examine
underlying
mechanism
iron
(Fe)
silicon
(Si)
nanoparticle-induced
toxicity
alleviation
seedlings.
Si–NPs
(2.5
mM)
Fe-NPs
(25
mg
L
−1
)
were
applied
alone
combination
plants
grown
without
(control;
no
stress)
with
(100
µM)
concentration.
Our
results
revealed
that
severely
affected
all
growth-related
traits,
such
as
inhibited
root
fresh
weight
(42%),
shoot
length
(24%),
chlorophyll
b
contents
(26%).
Moreover,
substantial
amount
translocated
above-ground
parts
plants,
which
caused
disturbance
antioxidative
enzyme
activities.
However,
synergetic
use
Fe-
reduced
upper
part
by
27%.
It
lethal
impact
on
roots
shoots
parameters
increasing
(40%),
(48%),
(31%).
Both
Si
Fe–NPs
synergistic
application
significantly
elevated
superoxide
dismutase
(SOD),
peroxidase
(POD),
catalase
(CAT),
glutathione
(GSH)
concentrations
114%,
186%,
135%,
151%,
respectively,
compared
subjected
alone.
The
resulted
several
cellular
abnormalities
altered
expression
levels
metal
transporters
antioxidant
genes.
We
conclude
can
be
deemed
favorable,
environmentally
promising,
cost-effective
for
reducing
deadliness
crops
reclaiming
Pb-polluted
soils.
Plants,
Journal Year:
2024,
Volume and Issue:
13(2), P. 313 - 313
Published: Jan. 20, 2024
Plants,
as
sessile
organisms,
uptake
nutrients
from
the
soil.
Throughout
their
whole
life
cycle,
they
confront
various
external
biotic
and
abiotic
threats,
encompassing
harmful
element
toxicity,
pathogen
infection,
herbivore
attack,
posing
risks
to
plant
growth
production.
Plants
have
evolved
multifaceted
mechanisms
cope
with
exogenous
stress.
The
defense
hypothesis
(EDH)
theory
elucidates
that
plants
employ
elements
within
tissues
withstand
natural
enemies.
Notably,
essential
non-essential
trace
metals
metalloids
been
identified
active
participants
in
mechanisms,
especially
nanoparticle
form.
In
this
review,
we
compiled
synthetized
recent
advancements
robust
evidence
regarding
involvement
of
against
stresses
include
stressors
(such
drought,
salinity,
heavy
metal
toxicity)
environmental
invasion
attack).
We
discuss
underlying
involved
enhancement
physiological,
biochemical,
molecular
perspectives.
By
consolidating
information,
review
enhances
our
understanding
how
contribute
defense.
Drawing
on
current
advances
elemental
defense,
propose
an
application
prospect
agricultural
products
solve
issues,
including
soil
pollution
production,
for
sustainable
development
agriculture.
Although
studies
focused
advanced,
precise
mechanism
under
response
still
needs
further
investigation.
Plants,
Journal Year:
2024,
Volume and Issue:
13(12), P. 1715 - 1715
Published: June 20, 2024
An
extremely
hazardous
heavy
metal
called
cadmium
(Cd)
is
frequently
released
into
the
soil,
causing
a
considerable
reduction
in
plant
productivity
and
safety.
In
an
effort
to
reduce
toxicity
of
Cd,
silicon
dioxide
nanoparticles
were
chosen
because
their
capability
react
with
metallic
substances
decrease
adsorption.
This
study
examines
processes
that
underlie
stress
caused
by
Cd
how
SiO2NPs
may
be
able
lessen
it
through
modifying
antioxidant
defense,
oxidative
stress,
photosynthesis.
A
100
μM
concentration
was
applied
hydroponically
grown
wild
rice
line,
50
(SiO2NPs)
given.
The
depicted
when
applied,
there
significant
uptake
both
roots
shoots
30.2%
15.8%
under
respectively.
results
illustrated
had
detrimental
effect
on
carotenoid
chlorophyll
levels
other
growth-related
traits.
Additionally,
increased
ROS
plants,
which
reduced
18.8%
(SOD),
39.2%
(POD),
32.6%
(CAT),
25.01%
(GR)
rice.
Nevertheless,
addition
damage
overall
amount
uptake,
lessened
Cd.
Reduced
formation
reactive
oxygen
species
(ROS),
including
MDA
H2O2,
defense
system
antioxidants
plants
provided
evidence
for
this.
Moreover,
enhanced
resistance,
upregulated
genes
related
silicon,
transporters’
expression
levels.
Plants,
Journal Year:
2024,
Volume and Issue:
13(21), P. 2964 - 2964
Published: Oct. 23, 2024
Nanotechnology
has
garnered
significant
interest
worldwide
due
to
its
wide-ranging
applications
across
various
industries.
Titanium
dioxide
nanoparticles
are
one
type
of
nanoparticle
that
is
commonly
utilised
in
everyday
use
and
can
be
synthesized
by
different
techniques
using
physical,
chemical
biological
extracts.
Green
synthesis
an
economical,
environmentally
benign
non-toxic
method
synthesising
nanoparticles.
have
a
positive
impact
on
plant
physiology,
particularly
response
biotic
abiotic
stresses,
depending
factors
like
size,
concentration,
exposure
the
other
variables.
Further,
titanium
many
applications,
such
as
being
used
nano-fertilizers,
adsorption
heavy
metal
from
industrial
wastewater
antimicrobial
activity,
discussed
this
review
paper.
Previous
studies
investigated
whether
also
induce
genotoxicity
may
mishandling
procedure,
time,
concentration
This
still
contradictory
requires
more
research.
The
present
pragmatic
approach
summarize
synthesis,
application,
nanotoxicity,
eco-friendly
disposable.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Aug. 21, 2024
Abstract
With
the
anticipated
foliar
application
of
nanoparticles
(NPs)
as
a
potential
strategy
to
improve
crop
production
and
ameliorate
heavy
metal
toxicity,
it
is
crucial
evaluate
role
NPs
in
improving
nutrient
content
plants
under
Lead
(Pb)
stress
for
achieving
higher
agriculture
productivity
ensure
food
security.
Herein,
Brassica
napus
L.
grown
Pb
contaminated
soil
(300
mg/kg)
was
sprayed
with
different
rates
(0,
25,
50,
100
mg/L)
TiO
2
ZnO-NPs.
The
were
evaluated
growth
attributes,
photosynthetic
pigments,
leaf
exchange
oxidant
antioxidant
enzyme
activities.
results
revealed
that
mg/L
significantly
augmented
plant
growth,
gas
attributes.
Furthermore,
ZnO-NPs
showed
maximum
increase
SPAD
values
(79.1%,
68.9%).
(100
ZnO-NPs)
also
substantially
reduced
malondialdehyde
(44.3%,
38.3%),
hydrogen
peroxide
(59.9%,
53.1%),
electrolyte
leakage
(74.8%,
68.3%),
increased
peroxidase
(93.8%,
89.1%),
catalase
(91.3%,
84.1%),
superoxide
dismutase
(81.8%,
73.5%)
ascorbate
(78.5%,
73.7%)
thereby
reducing
accumulation.
root
(45.7%,
42.3%)
shoot
(84.1%,
76.7%)
concentration
respectively,
compared
control.
Importantly,
macro
micronutrient
analysis
zinc
(58.4%,
78.7%)
iron
(79.3%,
89.9%),
manganese
(62.8%,
68.6%),
magnesium
(72.1%,
93.7%),
calcium
(58.2%,
69.9%)
potassium
(81.5%,
68.6%)
when
control
without
NPs.
same
trend
observed
concentration.
In
conclusion,
we
found
have
greatest
efficiency
at
alleviate
induced
toxicity
on
photosynthesis,
promising
sustainable
safety
contamination.
Environmental Pollutants and Bioavailability,
Journal Year:
2024,
Volume and Issue:
36(1)
Published: Aug. 14, 2024
Chromium
exists
from
both
natural
geological
processes
and
human
actions,
it
has
a
substantial
impact
on
health
ecosystems.
This
study
addresses
the
major
challenges
in
using
biochar
as
an
environmentally
friendly,
sustainable,
economical
sorbent
for
removing
chromium
hexavalent
throughout
remediation
process.
The
results
exhibited
that
produced
non-woody
feedstocks
pyrolyzed
at
(300°C
−700°C)
significantly
large
amount
of
various
functional
groups,
higher
pH
(7
to
11.10)
CEC
(27
21.70
cmol
kg−1),
greater
surface
area
(2–300
m2g−1),
O/C
H/C
ratios
with
increasing
carbonization
temperature,
adsorption
capacities
(1.63
435
mg
g)
superior
performance
removal
compared
biochars
woody-biomass.
use
equilibrium
isotherm,
thermodynamic,
kinetic
models
aids
comprehending
interactions
between
biochar,
well
their
processes.
