ACS Omega,
Journal Year:
2023,
Volume and Issue:
8(25), P. 22575 - 22588
Published: June 12, 2023
Soil
salinization
has
become
a
major
issue
around
the
world
in
recent
years,
as
it
is
one
of
consequences
climate
change
sea
levels
rise.
It
crucial
to
lessen
severe
soil
on
plants.
A
pot
experiment
was
conducted
regulate
physiological
and
biochemical
mechanisms
order
evaluate
ameliorative
effects
potassium
nitrate
(KNO3)
Raphanus
sativus
L.
genotypes
under
salt
stress.
The
results
from
present
study
illustrated
that
salinity
stress
induced
significant
decrease
shoot
length,
root
fresh
weight,
dry
number
leaves
per
plant,
leaf
area
chlorophyll-a,
chlorophyll-b,
total
chlorophyll,
carotenoid,
net
photosynthesis,
stomatal
conductance,
transpiration
rate
by
43,
67,
41,
21,
34,
28,
74,
91,
50,
24,
14,
26,
67%,
respectively,
40
day
radish
while
decreased
61,
49,
19,
31,
27,
70,
81,
16,
11,
62%,
Mino
radish.
Furthermore,
MDA,
H2O2
initiation,
EL
(%)
two
varieties
(40
radish)
R.
increased
significantly
(P
<
0.05)
86,
72%,
roots
also
76,
106,
38%
radish,
compared
untreated
elucidated
contents
phenolic,
flavonoids,
ascorbic
acid,
anthocyanin
with
exogenous
application
KNO3
37%,
grown
controlled
treatments.
Results
indicated
implementing
exogenously
activities
antioxidants
like
SOD,
CAT,
POD,
APX
64,
36,
84%
12,
23,
60%
42,
13,
18,
41%
comparison
those
plants
without
KNO3.
We
found
substantially
improved
plant
growth
lowering
oxidative
biomarkers,
thereby
further
stimulating
antioxidant
potential
system,
which
led
an
nutritional
profile
both
normal
stressed
conditions.
current
would
offer
deep
theoretical
foundation
for
clarifying
improves
tolerance
genotypes.
Plants,
Journal Year:
2023,
Volume and Issue:
12(13), P. 2519 - 2519
Published: June 30, 2023
Maize
(Zea
mays
L.)
is
a
salt-sensitive
plant
that
experiences
stunted
growth
and
development
during
early
seedling
stages
under
salt
stress.
Salicylic
acid
(SA)
major
hormone
has
been
observed
to
induce
resistance
in
plants
against
different
abiotic
stresses.
Furthermore,
growth-promoting
rhizobacteria
(PGPR)
have
shown
considerable
potential
conferring
salinity
tolerance
crops
via
facilitating
promotion,
yield
improvement,
regulation
of
various
physiological
processes.
In
this
regard,
combined
application
PGPR
SA
can
wide
applicability
supporting
We
investigated
the
impact
on
attributes
maize
explored
role
mitigating
effect
Three
levels
were
developed
(original,
4
8
dS
m-1)
pots
using
NaCl.
seeds
inoculated
with
salt-tolerant
Pseudomonas
aeruginosa
strain,
whereas
foliar
was
given
at
three-leaf
stage.
stress
adversely
affected
growth,
yield,
compared
control.
However,
both
individual
applications
alleviated
negative
effects
improved
all
measured
attributes.
The
response
+
significant
enhancing
shoot
root
dry
weights
(41
56%),
relative
water
contents
(32%),
chlorophyll
b
(25
27%),
grain
(41%)
higher
level
(i.e.,
as
untreated
unstressed
Moreover,
alterations
ascorbate
peroxidase
(53%),
catalase
(47%),
superoxide
dismutase
(21%),
MDA
(40%),
Na+
(25%),
K+
(30%)
concentration
leaves
pragmatic
SA.
concluded
integration
efficiently
improve
stressed
conditions.
Functional Plant Biology,
Journal Year:
2023,
Volume and Issue:
51(1)
Published: June 2, 2023
While
ameliorating
effects
of
melatonin
(MT)
on
abiotic
stress
tolerance
in
plants
are
widely
reported,
the
mechanism
that
underlies
this
process
remains
elusive.
This
work
investigated
mechanisms
by
which
MT
improved
drought
pepper
(Capsicum
annuum)
plants.
A
foliar
spray
0.1
mM
treatment
was
applied
to
grown
at
80%
and
40%
full
field
capacity
for
3
days.
Drought
caused
a
significant
decrease
plant
dry
weight,
relative
water
content,
leaf
potential,
PSII
efficiency
(Fv/Fm
ratio),
chlorophyll,
soluble
protein,
root
nitrogen
content.
increased
hydrogen
peroxide,
malondialdehyde
(MDA),
nitrate,
ammonium,
free
amino
acids,
sugars,
proline
glycine
betaine.
also
peroxidase
(POD),
glutathione
S-transferase
(GST)
catalase
(CAT)
activities,
electrolyte
leakage
(EL)
methylglyoxal
(MG).
pre-treatment
reduced
oxidative
metabolism
activating
various
enzymes
such
as
nitrate
reductase
(NR),
nitrite
(NiR),
glutamine
synthetase
(GS),
glutamate
(GOGAT)
dehydrogenase
(GDH)
activities.
It
activated
related
glyoxalase
system
(Gly
I
Gly
II)
decreased
NO3−,
NH4+
acid
Our
study
suggests
cost-effective
sustainable
solution
improve
crop
productivity
water-limited
conditions,
enhancing
growth,
photosynthesis
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(22), P. 16228 - 16228
Published: Nov. 12, 2023
The
production
of
crops
is
severely
limited
by
water
scarcity.
We
still
do
not
fully
understand
the
underlying
mechanism
exogenous
melatonin
(MT)-mediated
stress
tolerance
in
barley.
This
study
first
its
kind
to
show
how
MT
can
potentially
mitigate
changes
barley's
physio-biochemical
parameters
caused
deficiency.
Barley
was
grown
under
three
irrigation
levels
(100%,
70%,
and
30%
field
capacity)
foliar
sprayed
with
70
μM
MT.
results
showed
that
exogenously
applied
protected
photosynthetic
apparatus
improving
pigment
content,
photochemical
reactions
photosynthesis,
Calvin
cycle
enzyme
activity,
gas
exchange
capacity,
chlorophyll
fluorescence
system,
membrane
stability
index.
Furthermore,
increased
salicylic
acid,
gibberellins,
cytokinins,
melatonin,
indole-3-acetic
as
well
a
decrease
abscisic
indicated
foliar-applied
greatly
improved
barley
tolerance.
Additionally,
increasing
activity
antioxidant
enzymes
such
superoxide
dismutase,
catalase,
ascorbate
peroxidase,
monodehydroascorbate
reductase,
dehydroascorbate
glutathione
reductase
decreasing
hydrogen
peroxide
lipid
peroxidation,
electrolyte
leakage,
application
lessened
stress-induced
oxidative
stress.
According
newly
discovered
data,
improves
reprogramming
endogenous
plant
hormone
which
enhances
photosynthesis.
unraveled
MT's
crucial
role
deficiency
mitigation,
thus
be
management.
Horticulturae,
Journal Year:
2023,
Volume and Issue:
9(6), P. 711 - 711
Published: June 16, 2023
The
effect
of
nano
silica
(50
mL
L−1)
and
melatonin
(75
µM)
individually
or
in
combination
foliar
applications
on
the
morphophysiological,
biochemical
yield
properties
pea
plants
under
salinity
stress
conditions
was
evaluated.
Salt
caused
a
remarkable
decrease
growth
characteristics;
for
example,
plant
dry
weight,
height,
number
flowers
plant−1,
pods
weight
100
green
seeds
protein
concentration
during
both
seasons
were
decreased
compared
with
control.
Similarly,
their
physiobiochemical
characteristics
negatively
affected;
chlorophyll
a,
b
relative
water
content
(RWC)
significantly
reduced
stressed
plants.
However,
malondialdehyde
(MDA),
hydrogen
peroxide,
electrolyte
leakage
(EL%),
super
oxide
antioxidant
components
(catalase
(CAT),
superoxide
dismutase
(SOD),
peroxidase
(POX)
total
phenolic
compounds)
increased
when
salt
control
On
other
hand,
application
enhanced
characteristics,
morphological
best
treatment
(nano
+
melatonin),
which
significant
increases
seeds,
concentration,
concentrations
RWC
Additionally,
EL%,
MDA,
O2⋅−
H2O2
adjusted
upregulation
enzymes,
proline
compounds
untreated
Generally,
it
can
be
suggested
that
co-application
plays
positive
role
alleviating
adverse
impacts
by
modifying
metabolism
regulating
defense
system
as
well
scavenging
reactive
oxygen
species.
Heliyon,
Journal Year:
2023,
Volume and Issue:
9(5), P. e16030 - e16030
Published: May 1, 2023
Sugarcane
(Saccharum
officinarum
L.),
a
globally
cultivated
carbohydrate
producing
crop
of
industrial
importance
is
being
challenged
by
soil
salinity
due
to
its
glycophytic
nature.
Water
stress
coupled
with
cellular
and
metabolic
alterations
resulting
from
excess
sodium
(Na+)
ion
accumulation
irreversibly
damaging
during
early
developmental
stages
that
often
results
in
complete
failure.
This
study
therefore
aimed
explore
the
potential
salicylic
acid
as
sett
priming
material
mitigate
negative
effects
salt
on
sugarcane
germination
growth
stages.
Five
doses
(0
[hydropriming]
[control],
0.5
mM,
1
1.5
mM
2
mM)
were
tested
against
three
levels
(0.5
dS
m−1
4
m−1,
8
m−1)
within
polyhouse
environment.
Results
revealed
11.2%,
18.5%,
25.4%,
38.6%,
average
increase
final
germination,
energy,
seedling
length
vigor
index
respectively
subsequent
reduction
21%
mean
time.
Investigations
21.6%,
17.5%,
27.0%,
39.9%,
10.7%,
11.5%,
47.9%,
35.3%
20.5%
overall
plant
height,
total
leaf
area,
shoot
dry
matter,
root
greenness,
relative
water
content,
membrane
stability
index,
proline
antioxidant
activity
potassium
(K+)
24.9%
Na+
35.8%
Na+/K+
ratio
priming.
Germination,
recovery
physiochemical
traits
highly
satisfactory
primed
setts
than
non-primed
ones
even
under
level.
should
provide
useful
information
for
strategizing
management
approaches
better
productivity
sugarcane.
