Journal of Pineal Research,
Год журнала:
2024,
Номер
76(8)
Опубликована: Ноя. 1, 2024
ABSTRACT
The
dried
root
of
Peucedanum
praeruptorum
is
often
used
medicinally
and
has
high
pyran‐
furanocoumarin
content.
Although
exogenous
melatonin
(MT)
impacts
the
regulation
plant
growth,
stress
responses,
secondary
metabolism,
etc.,
it
remains
unclear
whether
MT
regulates
vegetative
growth
development
P.
.
Thus,
aim
current
study
to
characterize
effects
different
concentrations
on
physiological
functions,
photosynthesis,
antioxidant
systems,
hormone
induction,
coumarin
synthesis
Different
exert
distinct
regulatory
expression
genes
related
synthesis.
Treatment
with
low
increases
photosynthesis
leaf
compared
control,
while
reduce
vitality
elongation
decrease
photosynthetic
system
genes.
Low
also
significantly
increase
enzyme
activity
pigment
content
modulate
levels
IAA,
gibberellic
acid,
salicylic
jasmonic
abscisic
endogenous
MT.
Moreover,
enzymes
tryptophan
decarboxylase,
hydroxylase,
tryptamine‐5‐hydroxylase,
serotonin
N
‐acetyltransferase,
acetylserotonin
O
‐methyltransferase,
caffeic
acid
promotes
accumulation
isoscopoletin,
scopoletin,
peucedanocoumarin
II,
praeruptorin
A,
B,
E.
upregulates
most
associated
synthesis,
including
PAL1
,
C4H
4CL‐3
C3H‐1
F6H‐1
CCoAMT
OMT‐1
CYP71AJ1
CYP84A1‐1
S8H‐1
PT‐1
COSY‐1
These
findings
demonstrate
that
may
improve
promoting
components.
Environmental Progress & Sustainable Energy,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 9, 2025
Abstract
To
enhance
selenium
(Se)
uptake
in
peach
plants,
a
pot
experiment
was
conducted
to
study
the
effects
of
melatonin
(150
μmol/L)
and
24‐epibrassinolide
(1.5
mg/L)
on
growth
Se
accumulation
wild
(as
rootstock
peach)
seedlings
under
stress
(0.1
mg/L).
The
results
showed
that
application
melatonin,
24‐epibrassinolide,
combination
both
increased
biomass
levels
photosynthetic
pigments
(chlorophyll
,
chlorophyll
b
carotenoids)
stress.
Furthermore,
these
treatments
activities
peroxidase
catalase
while
decreasing
activity
superoxide
dismutase.
Among
treatments,
only
resulted
an
increase
root
content
bioconcentration
factor
(BCF)
seedlings.
Compared
treatment
alone,
with
shoot
by
40.87%,
53.91%,
53.04%,
respectively,
as
well
translocation
factor,
BCF,
whole
plant
BCF
Correlation
gray
relational
analyses
revealed
carotenoid
content,
biomass,
closest
relationships
Thus,
can
effectively
promote
stress,
best
observed
24‐epibrassinolide.
Environmental Science Advances,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Cadmium
(Cd)
toxicity
is
a
potential
abiotic
stress
that
significantly
affects
plant
growth
and
development,
especially
in
vegetable
crops
like
muskmelon.
Plant Soil and Environment,
Год журнала:
2024,
Номер
70(9), С. 590 - 599
Опубликована: Авг. 6, 2024
In
this
paper,
I
elucidated
the
influence
of
γ-aminobutyric
acid
(GABA)
on
wheat
cadmium
(Cd)
tolerance.
Research
results
manifested
that
Cd
stress
increased
superoxide
dismutase,
catalase,
peroxidase,
ascorbate
peroxidase
and
glutathione
activities,
ascorbic
(AsA)
(GSH)
contents.
However,
decreased
AsA/
dehydroascorbic
(DHA)
GSH/oxidised
(GSSG)
ratios,
inhibited
photosynthetic
performance
plant
growth.
Compared
to
alone,
GABA
plus
improved
tolerance
by
increasing
activities
above
antioxidant
enzymes,
AsA
GSH
contents,
AsA/DHA
GSH/GSSG
ratios.
Meanwhile,
compared
with
also
enhanced
improving
chlorophyll
(Chl)
carotenoid
(Car)
contents
Car/Chl
ratio,
rate,
transpiration
stomatal
conductance,
intercellular
carbon
dioxide
concentration,
Chl
fluorescence
parameters
maximum
photochemical
efficiency
PSII,
quenching,
nonphotochemical
quenching
quantum
PSII
photochemistry,
which
further
promoted
height
biomass.
control,
alone
indicators.
Current
suggested
can
be
applied
as
an
anti-cadmium
agent
in
production
practice.
Plants,
Год журнала:
2024,
Номер
13(21), С. 3049 - 3049
Опубликована: Окт. 31, 2024
Soil
remediation
for
cadmium
(Cd)
toxicity
is
essential
successful
tobacco
cultivation
and
production.
Melatonin
application
can
relieve
heavy
metal
stress
promote
plant
growth;
however,
it
remains
somewhat
unclear
whether
melatonin
supplementation
remediate
the
effects
of
Cd
on
growth
development
seedlings.
Herein,
we
evaluated
effect
soil-applied
accumulation
in
seedlings,
as
well
responses
growth,
physiological
biochemical
parameters,
expression
stress-responsive
genes.
Our
results
demonstrate
that
mitigated
tobacco,
thus
promoted
growth.
It
increased
root
fresh
weight,
dry
shoot
weight
by
58.40%,
163.80%,
34.70%
84.09%,
respectively,
compared
to
control.
Physiological
analyses
also
showed
significant
differences
photosynthetic
rate
pigment
formation
among
treatments,
with
highest
improvements
recorded
application.
In
addition,
alleviated
Cd-induced
oxidative
damage
reducing
MDA
content
enhancing
activities
enzymatic
antioxidants
(CAT,
SOD,
POD
APX)
non-enzymatic
(GSH
AsA).
Moreover,
confocal
microscopic
imaging
confirmed
effectiveness
sustaining
cell
integrity
under
stress.
Scanning
Electron
Microscopy
(SEM)
observations
illustrated
alleviative
role
stomata
ultrastructural
features
toxicity.
The
qRT-PCR
analysis
revealed
upregulated
antioxidant-related
genes,
including
The
resilience
of
tomato
plants
under
different
cultivation
environments,
particularly
saline
and
non-saline
conditions,
was
investigated
by
applying
various
treatments,
including
0.5%
Ascorbic
Acid
(AsA)
1%
Sulphur-treated
Biochar
(BS).
study
evaluated
parameters
such
as
fruit
length,
diameter,
yield
per
plant
pot,
Total
Soluble
Solids
(TSS)
content,
chlorophyll
electrolyte
leakage,
enzyme
activities
(Superoxide
Dismutase
-
SOD,
Peroxidase
POD,
Catalase
CAT),
nutrient
content
(Nitrogen
N%,
Phosphorus
P%,
Potassium
K%).
Under
significant
enhancements
were
observed
in
characteristics
metrics
with
the
application
AsA
BS
individually,
combined
treatment
yielding
most
substantial
improvements.
Notably,
treatments
exhibited
varying
effects
on
TSS
levels,
activities,
combination
consistently
demonstrating
superior
outcomes.
Additionally,
analysis
revealed
notable
increases,
showcasing
enhancements.
Overall,
underscores
potential
promoting
resilience,
offering
insights
into
their
synergistic
multiple
physiological
biochemical
crucial
for
growth
productivity.
