Forests,
Год журнала:
2025,
Номер
16(4), С. 695 - 695
Опубликована: Апрель 17, 2025
Drought
threatens
the
stability
of
artificial
black
locust
forests
on
Loess
Plateau,
yet
there
is
limited
research
physiological
and
metabolic
responses
mature
to
drought
stress.
This
study
employed
a
throughfall
exclusion
system—i.e.,
moderate
(40%
reduction),
extreme
(80%
0%
reduction
for
control—to
analyze
leaf
microstructure,
relative
water
content
(RWC),
osmotic
adjustment
substances,
hormone
levels,
flavonoid
metabolites
in
under
controlled
The
results
demonstrated
that
as
stress
intensified,
stomatal
aperture
density
decreased,
while
trichome
length
exhibited
significant
increases.
MDA,
proline,
IAA,
substances
(soluble
protein,
reducing
sugar,
total
sugar)
first
increased
then
decreased
intensified.
A
245
compounds
were
identified
through
metabolomic
analysis,
among
which
91
differential
expression
treatments.
Notably,
37
flavonoids,
including
flavonols
glycosylated
derivatives,
consistently
upregulated.
These
findings
suggest
can
lead
accumulation
flavonoids.
explored
trees
stress,
offering
insights
selecting
drought-resistant
species
vegetation
restoration
informing
ecological
management
practices
arid
regions.
Plants,
Год журнала:
2022,
Номер
11(21), С. 2857 - 2857
Опубликована: Окт. 26, 2022
Most
cultivated
potatoes
are
tetraploid,
and
the
tuber
is
main
economic
part
that
consumed
due
to
its
calorific
nutritional
values.
Recent
trends
in
climate
change
led
frequent
occurrence
of
heat
drought
stress
major
potato-growing
regions
worldwide.
The
optimum
temperature
for
production
15–20
°C.
High-temperature
water-deficient
conditions
during
growing
season
result
several
morphological,
physiological,
biochemical,
molecular
alterations.
morphological
changes
under
may
affect
process
stolon
formation,
tuberization,
bulking,
ultimately
affecting
yield.
This
condition
also
affects
physiological
responses,
including
an
imbalance
allocation
photoassimilates,
respiration,
water
use
efficiency,
transpiration,
carbon
partitioning,
source–sink
relationship.
biochemical
responses
involve
maintaining
ionic
homeostasis,
synthesizing
shock
proteins,
achieving
osmolyte
balance,
generating
reactive
oxygen
species,
various
pathways.
Different
networks
include
both
gene
regulation
transcription
factors
involved
at
level
combination
hot
conditions.
article
attempts
present
integrative
content
physio-biochemical
combined
effects
drought,
prominent
change.
Taking
into
account
all
these
aspects
there
immediate
need
comprehensive
screening
germplasm
application
appropriate
approaches
tactics
produce
potato
cultivars
perform
well
heat-affected
areas.
Abstract
As
crucial
stages
in
the
plant
ontogeny,
germination
and
seedling
establishment
under
adverse
conditions
greatly
determine
staple
crop
growth
productivity.
In
context
of
green
technologies
aiming
to
improve
yield,
seed
priming
is
emerging
as
an
effective
approach
enhance
vigor
performance
salt
stress.
this
study,
we
assess
efficiency
with
indole-3-acetic
acid
(IAA)
mitigating
effects
stress
on
maize
(
Zea
mays
L.)
seedlings
during
early
stages.
unprimed
seeds,
reduced
indices,
(both
radicle
coleoptile)
growth,
together
decreased
tissue
hydration.
However,
using
IAA
significantly
improved
response,
reflected
by
increased
dynamics,
establishment,
water
status.
Besides,
from
IAA-primed
seeds
showed
a
higher
activity
α-amylase,
resulting
sugar
contents
roots
coleoptiles
salt-stressed
plants.
Further,
IAA-seed
stimulated
accumulation
endogenous
seedlings,
concomitance
significant
effect
reactive
oxygen
species
detoxification
lipid
peroxidation
prevention.
Indeed,
our
data
revealed
antioxidant
enzyme
activities,
differentially
regulated
coleoptiles,
leading
activities
enzymes
(SOD,
CAT
GPX).
summary,
gained
study
further
highlight
potential
modulating
interactions
between
multiple
signaling
pathways
seed,
endowing
enhanced
sustained
tolerance
subsequent
Horticulturae,
Год журнала:
2025,
Номер
11(1), С. 64 - 64
Опубликована: Янв. 9, 2025
Soilless
cultivation
allows
for
the
exploitation
of
benefits
plant
growth-promoting
rhizobacteria
(PGPR)
without
loss
efficacy
observed
with
soil
inoculation.
In
this
study,
we
investigated
effects
a
PGPR
consortium
on
growth,
ecophysiology,
and
metabolic
profile
lettuce
(Lactuca
sativa
L.)
grown
in
an
aeroponic
system
under
low-nutrient
regime.
Overall,
biomass
increased
by
25%
PGPR-inoculated
plants
due
to
enhanced
leaf
root
growth.
The
rise
was
primarily
increase
number
average
mass,
coupled
higher
total
area.
addition,
inoculated
exhibited
altered
anatomy
characterized
palisade
parenchyma
thickness
reduced
airspace
area,
suggesting
improved
photosynthetic
efficiency
changes
mesophyll
conductance.
morphology
also
altered,
showing
lateral
development.
Furthermore,
inoculation
induced
significant
reprogramming
leaves,
affecting
several
pathways
related
development,
stress
responses.
These
findings
provide
valuable
insights
into
intricate
dialog
between
beneficial
microbes
demonstrate
that
integration
soilless
culture
analysis
ecophysiological,
anatomical,
metabolomic
responses
can
be
powerful
approach
accelerate
design
new
consortia
use
as
microbial
biostimulants.
Plant Stress,
Год журнала:
2023,
Номер
10, С. 100279 - 100279
Опубликована: Ноя. 2, 2023
Drought
stress
hampers
plant
growth
and
productivity.
Some
microorganisms
mitigate
in
plants;
however,
the
molecular
mechanism
by
which
they
interact
with
plants
mitigating
remains
unknown.
This
study
aimed
to
determine
growth–promoting
rhizobacteria
modulate
drought
soybean.
Results
indicated
that
B.
pumilus
SH-9
(SH-9)
produced
indole
acetic
acid
siderophore,
had
capacity
for
phosphate
solubilization.
The
test
polyethylene
glycol
6000
(PEG)
tolerance,
showed
could
withstand
high
PEG
concentration
(up
30%).
isolate
was
identified
a
strain
using
16s
ribosomal
DNA
gene
sequence.
Inoculation
of
soybeans
enhanced
soybean
biomass
20%,
even
under
stress.
due
reduction
endogenous
phytohormone
(abscisic
acid)
upregulation
antioxidant
defense
system
(SOD,
POD,
APX,
GSH)
SH-9.
Furthermore,
transcription
factors
GmDREB2,
GmbZIP1,
GmNCED3
were
involved.
also
improved
physio-morphological
characteristics
such
as
biomass,
chlorophyll,
seedling
length,
relative
water
contents
stressed
plant.
Overall,
findings
this
enhances
promoting
solubilization,
exopolysaccharides.
We,
therefore,
conclude
is
drought-tolerant
variant
can
improve
via
modulation
expression
gene,
profile.
Metabolites,
Год журнала:
2023,
Номер
13(3), С. 341 - 341
Опубликована: Фев. 24, 2023
Despite
a
rich
history
and
economic
importance,
the
potential
of
medicinal
plants
has
not
been
fully
explored
under
different
abiotic
stress
conditions.
Penetration
UV-B
radiation
contamination
heavy
metals
are
two
important
environmental
for
with
remarkable
influence
on
defense-related
pharmaceutically
secondary
metabolites
plants.
metal
may
become
critical
issue
that
either
positively
or
negatively
affects
quality
quantity
metabolites.
Such
effects
result
from
changes
in
expression
level
genes
encode
corresponding
enzymes
inactivation
and/or
stimulation
specific
involved
biosynthetic
pathways
Therefore,
comprehensive
study
impact
individually
combination
biosynthesis
accumulation
is
discussed
present
review.
International Journal of Molecular Sciences,
Год журнала:
2025,
Номер
26(2), С. 692 - 692
Опубликована: Янв. 15, 2025
Melatonin
(MT)
and
brassinolide
(BL)
are
phytohormones
that
regulate
various
physiological
processes
in
plants.
This
study
investigates
their
effects
on
Wolffia
arrhiza
when
exposed
to
cadmium
(Cd).
Plant
hormones
were
quantified
using
liquid
chromatography-mass
spectrometry,
while
photosynthetic
pigments
phytochelatins
(PCs)
analyzed
through
high-performance
chromatography.
Protein,
monosaccharide
levels,
antioxidant
activities
also
spectrophotometrically
measured.
The
findings
reveal
MT
BL
treatment
decreased
Cd
accumulation
W.
compared
plants
only
Cd.
was
particularly
effective
reversing
Cd-induced
growth
inhibition
reducing
stress
markers
more
significantly
than
BL.
It
enhanced
activity
maintained
higher
levels
of
pigments,
proteins,
sugars.
Although
less
these
aspects,
it
promoted
greater
synthesis
glutathione
PCs
Cd-exposed
duckweed.
Overall,
both
alleviate
the
negative
impact
arrhiza,
confirming
crucial
role
supporting
plant
health
under
metal
conditions.
Frontiers in Plant Science,
Год журнала:
2025,
Номер
15
Опубликована: Янв. 20, 2025
Abiotic
stresses
are
considered
as
a
significant
factor
restricting
horticultural
crop
productivity
and
quality.
Drought
stress
is
major
environmental
constraint
among
the
emerging
concerns.
Plants
have
susceptibility
to
drought
stress,
resulting
in
marked
decline
production
during
last
several
decades.
The
development
of
effective
strategies
mitigate
essential
for
sustainable
agriculture
food
security,
especially
considering
continuous
growth
world
population.
Several
studies
suggested
that
exogenous
application
phytohormone
plants
can
improve
tolerance
by
activating
molecular
physiological
defense
systems.
Phytohormone
pretreatment
potential
approach
alleviating
plants.
In
addition,
melatonin,
salicylic
acid,
jasmonates,
strigolactones,
brassinosteroids,
gamma-aminobutyric
acid
phytohormones
function
regulators
effects
stress.
These
hormones
frequently
interact
with
one
another
survival
drought-stressed
environments.
To
sum
up,
this
review
will
predominantly
elucidate
role
related
mechanisms
across
various
horticulture
species.
