Melatonin
is
a
hormone
found
in
plants,
animals,
and
humans,
it
has
been
shown
to
have
several
beneficial
effects,
including
its
ability
regulate
plant
growth,
development,
stress
response.
Heavy
metals
(HMs),
on
the
other
hand,
are
toxic
elements
that
can
accumulate
tissues
negatively
impact
growth
development.
One
recent
development
melatonin-heavy
metal
research
plants
identification
of
melatonin
as
potential
candidate
for
detoxification
HMs
plants.
treatment
significantly
reduced
levels
roots
leaves
improved
antioxidant
capacity
Plant
researchers
also
exploring
use
phytoremediation,
which
process
using
remove
pollutants
from
environment.
Overall,
these
studies
highlight
useful
tool
mitigating
harmful
effects
Present
work
an
attempt
fully
understand
mechanisms
by
exerts
protective
describe
possible
applications
phytoremediation
agriculture.
Sustainability,
Journal Year:
2023,
Volume and Issue:
15(5), P. 4352 - 4352
Published: Feb. 28, 2023
Lead
(Pb)
is
a
non-essential
element;
however,
plants
uptake
it
from
soils
rich
in
Pb.
Soybean
[Glycine
max
(L.)
Merr.]
an
important
legume
crop,
and
Pb
toxicity
exerts
negative
impacts
on
its
growth
yield.
This
study
investigated
the
role
of
foliar-applied
loquat
(Eriobotrya
japonica
Lindl.)
leaf
extract
improving
morphological,
physiological,
biochemical
traits
soybean
under
toxicity.
were
exposed
to
four
concentrations
(0,
200,
400,
800
µg/L)
supplemented
with
0%
or
5%
aqueous
(EJLE).
Data
relating
pigments,
proline,
total
soluble
sugars,
malondialdehyde
(MDA),
hydrogen
peroxide
(H2O2),
non-enzymatic
antioxidant,
i.e.,
[ascorbic
acid
(AsA),
glutathione
(GSH),
phenolic
contents
(TPC),
flavonoids
content
(TFC)]
enzymatic
[superoxide
dismutase
(SOD),
catalase
(CAT),
peroxidase
(POD),
ascorbate
(APX),
reductase
(GR)]
recorded.
Total
chlorophyll
carotenoids
significantly
decreased
by
stress,
while
lycopene
anthocyanin
increased.
Similarly,
MDA,
H2O2,
AsA,
GSH,
TPC,
TFC,
SOD,
CAT,
POD,
APX,
GR
increased
stress.
Foliar
spray
EJLE
lowered
MDA
H2O2
accumulation
chlorophylls,
carotenoids,
lycopene,
anthocyanins,
antioxidant
system.
The
increase
activities
enzymes
adverse
effects
stress
soybean.
application
different
plant
parts
compared
those
receiving
no
EJLE.
It
concluded
that
can
improve
tolerance
enhancing
traits.
However,
actual
mechanisms
behind
these
improvements
warrant
further
investigation.
