Metabolites,
Год журнала:
2024,
Номер
14(4), С. 241 - 241
Опубликована: Апрель 21, 2024
The
exogenous
application
of
bioregulators,
such
as
salicylic
acid
(SA),
has
exhibited
promising
outcomes
in
alleviating
drought
stress.
Nevertheless,
its
impact
on
culantro
(Eryngium
foetidum
L.)
remains
unexplored.
Thus,
the
aim
this
study
was
to
assess
how
SA
impacts
growth,
morphophysiology,
and
essential
oil
composition
when
subjected
drought.
To
achieve
this,
plants
were
grown
under
three
different
watering
regimes:
well-watered,
drought-stressed,
re-watered.
Additionally,
they
either
treated
with
(100
µM)
or
left
untreated,
water
serving
control.
did
not
mitigate
effects
biomass
production
but
increased
biomass,
leaf
number,
area,
photosynthetic
pigments
well-irrigated
re-watered
conditions.
After
a
period
followed
by
re-watering,
recovered
membrane
integrity
independently
application.
Water
stress
also
modulated
profile
oils.
This
is
first
report
about
affecting
growth
culantro.
Frontiers in Plant Science,
Год журнала:
2024,
Номер
14
Опубликована: Янв. 12, 2024
Introduction
Pterocarya
fraxinifolia
(Poiret)
Spach
(Caucasian
wingnut,
Juglandaceae)
is
a
relict
tree
species,
and
little
known
about
its
tolerance
to
abiotic
stress
factors,
including
drought
heavy
metal
toxicity.
In
addition,
salicylic
acid
(SA)
has
been
shown
have
pivotal
role
in
plant
responses
biotic
stresses.
Methods
The
current
study
focused
on
evaluating
the
impact
of
foliar
application
SA
mediating
Caucasian
wingnut
physiological
biochemical
responses,
growth,
relative
water
content
(RWC),
osmotic
potential
(Ψs),
quantum
yield
(Fv/Fm),
electrolyte
leakage,
lipid
peroxidation,
hydrogen
peroxide,
antioxidant
enzymes,
cadmium
(Cd;
100
µM)
stress,
as
well
their
interaction.
Moreover,
activity
(e.g.,
ascorbate
peroxidase,
catalase,
glutathione
reductase,
superoxide
dismutase
activities)
stressed
trees
was
investigated.
conducted
6-month-old
seedlings
under
controlled
environmental
conditions
greenhouse
for
3
weeks.
Results
discussion
Leaf
length,
RWC,
Ψs,
Fv/Fm
were
decreased
all
treatments,
although
effect
most
pronounced.
An
efficient
defense
mechanism
detected
wingnut.
SA-treated
plants
had
lower
one
indicators
oxidative
when
compared
non-SA-treated
groups,
suggesting
this
Cd
combination.
Cadmium
also
changed
ion
concentrations
causing
excessive
accumulation
leaves.
These
results
highlight
beneficial
function
reducing
negative
effects
plants.
Physiologia Plantarum,
Год журнала:
2024,
Номер
176(6)
Опубликована: Ноя. 1, 2024
As
global
climate
change
intensifies,
the
occurrence
and
severity
of
various
abiotic
stresses
will
significantly
threaten
plant
health
productivity.
Drought
stress
(DS)
is
a
formidable
obstacle,
disrupting
normal
functions
through
specific
morphological,
physiological,
biochemical,
molecular
mechanisms.
Understanding
how
plants
navigate
DS
paramount
to
mitigating
its
adverse
effects.
In
response
DS,
synthesize
or
accumulate
growth
regulators
(PGRs),
including
phytohormones,
neurotransmitters,
gasotransmitters,
polyamines,
which
present
promising
sustainable
green
chemical
strategies
adapt
tolerate
conditions.
These
PGRs
orchestrate
crucial
structure
function
adjustments,
activating
defense
systems
modulating
cellular-level
responses,
transcript
levels,
transcription
factors,
metabolic
genes,
stress-responsive
candidate
proteins.
However,
efficacy
these
molecules
in
depends
on
species,
applied
PGR
dose,
treatment
type,
duration
exposure,
stages.
Thus,
exploring
integrated
impact
enhancing
fitness
tolerance
for
food
security
agriculture.
This
review
investigates
responses
explains
potential
exogenously
diverse
PGRs,
dissects
complex
chemistry
among
sheds
light
omics
approaches
harnessing
basis
tolerance.
updated
delivers
comprehensive
mechanistic
insights
leveraging
enhance
overall
under
Plants,
Год журнала:
2025,
Номер
14(3), С. 301 - 301
Опубликована: Янв. 21, 2025
Salinity
is
a
significant
challenge
for
agriculture
in
semi-arid
regions,
affecting
the
growth
and
productivity
of
plants
like
Tropaeolum
majus
(nasturtium),
which
valued
its
ornamental,
medicinal,
food
uses.
Salt
stress
disrupts
plant’s
biochemical,
physiological,
anatomical
processes,
limiting
development.
This
study
investigates
potential
proline
as
an
osmoprotectant
to
mitigate
effects
salt
on
nasturtium’s
physiology.
A
completely
randomized
factorial
design
was
employed,
testing
five
levels
electrical
conductivity
(0.0,
1.50,
3.00,
4.5,
6.5
dS
m−1)
four
concentrations
5.00,
10.0,
15.0
mM)
with
six
replicates.
The
results
showed
that
application,
particularly
at
mM,
enhanced
parameters
such
leaf
number,
stem
diameter,
root
length.
At
moderate
salinity
(3.0
m−1),
significantly
improved
gas
exchange,
increasing
net
photosynthesis,
transpiration,
stomatal
conductance.
Additionally,
reduced
negative
impact
fresh
mass
leaves,
stems,
roots,
increased
both
number
flowers.
Proline
also
elevated
total
phenolic
compounds
vitamin
C
while
reducing
soluble
sugars,
under
(4.75
m−1).
Overall,
applying
mM
shows
promise
enhancing
biomass
accumulation,
flower
production,
overall
quality
nasturtium
saline
conditions.
International Journal of Molecular Sciences,
Год журнала:
2025,
Номер
26(3), С. 1368 - 1368
Опубликована: Фев. 6, 2025
Aspirin
(Asp)
is
extensively
used
in
human
health
as
an
anti-inflammatory,
antipyretic,
and
anti-thrombotic
drug.
In
this
study,
we
investigated
if
the
foliar
application
of
Asp
on
tomato
plants
has
comparable
beneficial
effects
photosynthetic
function
to
that
salicylic
acid
(SA),
with
which
it
shares
similar
physiological
characteristics.
We
assessed
consequences
Asp-spray
photosystem
II
(PSII)
efficiency
plants,
estimated
reactive
oxygen
species
(ROS)
generation
chloroplast
ultrastructural
changes.
acted
osmoregulator
by
increasing
leaf
water
content
offering
antioxidant
protection.
This
protection
kept
redox
state
plastoquinone
(PQ)
pull
(qp)
more
oxidized,
fraction
open
PSII
reaction
centers
enhancing
photochemistry
(ΦPSII).
addition,
spray
decreased
formation,
decreasing
excess
excitation
energy
PSII.
resulted
a
lower
singlet
(1O2)
quantum
yield
for
heat
dissipation
(ΦNPQ),
indicating
photoprotective
effect
provided
Asp,
especially
under
light
illumination.
Simultaneously,
observed
decrease
stomatal
opening
reduced
transpiration.
Chloroplast
data
revealed
effect,
need
photorespiration
process,
reduces
performance.
It
concluded
characteristics
SA,
having
equivalent
impact
SA
acting
biostimulant
enhanced
crop
yield.
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(12), С. 6721 - 6721
Опубликована: Июнь 18, 2024
Water
deficit
is
the
major
stress
factor
magnified
by
climate
change
that
causes
most
reductions
in
plant
productivity.
Knowledge
of
photosystem
II
(PSII)
response
mechanisms
underlying
crop
vulnerability
to
drought
critical
better
understanding
consequences
on
plants.
Salicylic
acid
(SA)
application
under
may
stimulate
PSII
function,
although
exact
mechanism
remains
essentially
unclear.
To
reveal
celery
plants
sprayed
with
water
(WA)
or
SA,
we
employed
chlorophyll
fluorescence
imaging
analysis
at
48
h,
96
and
192
h
after
watering.
The
results
showed
up
watering,
stroma
lamellae
SA-sprayed
leaves
appeared
dilated,
efficiency
declined,
compared
WA-sprayed
plants,
which
displayed
a
function.
However,
was
restored,
while
SA
boosted
synthesis,
ameliorating
osmotic
potential
it
resulted
higher
relative
leaf
content
acting
as
an
antioxidant
stress,
suppressed
phototoxicity,
thereby
offering
photoprotection,
together
enhanced
effective
quantum
yield
photochemistry
(ΦPSII)
decreased
quantity
singlet
oxygen
(1O2)
generation
photoprotection
induced
triggered
non-photochemical
quenching
(NPQ),
strategy
protect
chloroplast
from
photo-oxidative
damage
dissipating
excess
light
energy
heat.
This
photoprotective
mechanism,
NPQ
adequate
keeping,
especially
high-light
conditions,
equal
fraction
open
reaction
centers
(qp)
non-stress
conditions.
Thus,
activates
regulatory
network
partitioning
signaling
can
mitigate,
extent,
functioning.
Revista Brasileira de Engenharia Agrícola e Ambiental,
Год журнала:
2024,
Номер
28(4)
Опубликована: Март 1, 2024
ABSTRACT
Salt
stress
hampers
the
growth
and
physiology
of
nasturtium
(Tropaeolum
majus),
due
to
biochemical,
physiological,
anatomical
disruptions.
The
application
salicylic
acid
stands
as
an
alternative
alleviate
detrimental
effects
salt
stress,
but
studies
on
are
scarce.
Thus,
aim
present
study
was
assess
foliar
cultivated
under
stress.
experiment
followed
a
completely
randomized
design
in
3
x
factorial
scheme,
with
0
(no
stress),
50
(moderate
100
(severe
stress)
mM
NaCl,
0,
0.5,
1
acid,
each
six
replications.
Growth
(plant
height,
stem
diameter,
number
leaves),
gas
exchange
(stomatal
conductance,
photosynthesis,
transpiration,
internal
CO2
concentration,
intrinsic
water
use
efficiency,
instantaneous
carboxylation
efficiency),
well
chlorophyll
indices
fluorescence
were
evaluated.
affected
variables
analyzed
this
study.
had
positive
effect
mitigating
severe
resulting
significant
increase
leaves.
most
effective
dose
mM,
also
leading
notable
improvements
efficiency
photochemical
efficiency.
However,
other
combinations
salinity
reduced
plants.
International Journal of Molecular Sciences,
Год журнала:
2025,
Номер
26(9), С. 4447 - 4447
Опубликована: Май 7, 2025
Salicylic
acid
(SA)
is
one
of
the
most
commonly
used
natural
plant
protection
compounds,
considered
effective
in
mitigating
damage
caused
by
abiotic
and
biotic
stressors.
The
current
review
article
summarizes
significant
achievements
stress
management
over
past
ten
years.
We
also
provide
insights
into
new
perspectives
on
use
salicylic
acid.
role
SA
signaling,
its
effects
biotic,
oxidative
stress,
evaluates
possibilities
combination
with
other
active
presents
promising
application
opportunities
offered
techniques
that
may
become
available
coming
decades.
