Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 7, 2024
Abstract
Cadmium
(cd)
toxicity
has
become
a
major
threat
to
the
crop
productivity
and
vegetables
appeared
be
on
risk.
In
present
study,
potential
of
methyl
jasmonate
(MeJA,
0.015
µM)
gamma-aminobutyric
acid
(GABA
15
was
explored
alleviate
cd
(12
in
tomato
brinjal
seedlings.
Cd
declined
fresh
dry
mass
by
21%
18%
seedlings
27%
25%
significantly
damage
pigments
contents
(Chl
a,
Chl
b
Car),
PS
II
photochemistry
a
fluorescence
kinetics)
photosynthetic
gas
exchange
parameters
both
Furthermore,
exacerbated
oxidative
biomarkers
antioxidant
enzymes
CAT,
SOD,
POD
GST
Phytohormones
MeJA
GABA
application
led
significant
uptake,
biomarkers,
antioxidative
activity
up-regulation
leaves
parameters,
performance
growth
parameters.
Additionally,
biosynthetic
inhibitors
diethyldithiocarbamic
(DIECA)
3-Mercaptopropionic
(MPA)
further
raised
thereby
excessive
increase
worsened
photosynthesis,
hence
greatly
reduced.
Thus,
study
concludes
that
as
compared
seedlings,
showed
greater
tolerance
toxicity,
plays
crucial
role
mitigating
however,
together
more
efficiently
alleviated
toxicity.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 18, 2024
Abstract
The
resilience
of
tomato
plants
under
different
cultivation
environments,
particularly
saline
and
non-saline
conditions,
was
investigated
through
the
application
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
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.
Journal of Pineal Research,
Journal Year:
2024,
Volume and Issue:
76(8)
Published: Nov. 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.
