Frontiers in Plant Science,
Год журнала:
2022,
Номер
13
Опубликована: Март 10, 2022
Salicylic
acid
(SA)
and
N
-hydroxypipecolic
(NHP)
are
two
central
plant
immune
signals
involved
in
both
resistance
at
local
sites
of
pathogen
infection
(basal
resistance)
distal
uninfected
after
primary
(systemic
acquired
resistance).
Major
discoveries
advances
have
led
to
deeper
understanding
their
biosynthesis
signaling
during
defense
responses.
In
addition
well-defined
roles
immunity,
recent
research
is
emerging
on
direct
mechanistic
impacts
growth
development.
this
review,
we
will
first
provide
an
overview
how
SA
NHP
regulate
systemic
responses
plants.
We
emphasize
these
mutually
potentiated
convergent
multiple
aspects—from
homeostasis,
from
gene
expression
phenotypic
then
highlight
be
crucial
regulators
the
growth-defense
balance,
showcasing
multi-faceted
studies
metabolism,
receptor
growth/development-related
host
targets.
Overall,
article
reflects
current
provides
future
outlooks
SA/NHP
biology
functional
significance
as
for
immunity
growth.
Because
global
climate
change
increasingly
influence
health
resilience,
it
paramount
fundamentally
understand
tightly
linked
nexus
balance.
Life,
Год журнала:
2022,
Номер
12(6), С. 886 - 886
Опубликована: Июнь 14, 2022
In
recent
decades,
many
new
and
exciting
findings
have
paved
the
way
to
better
understanding
of
plant
responses
in
various
environmental
changes.
Some
major
areas
are
focused
on
role
phytohormone
during
abiotic
stresses.
Salicylic
acid
(SA)
is
one
such
hormone
that
has
been
implicated
processes
not
limited
growth,
development,
stress.
This
review
summarizes
roles
functions
SA
mitigating
stresses
plants,
including
heating,
chilling,
salinity,
metal
toxicity,
drought,
ultraviolet
radiation,
etc.
Consistent
with
its
critical
tolerance,
this
identifies
gaps
literature
regard
complex
signalling
network
between
reactive
oxygen
species,
ABA,
Ca2+,
nitric
oxide.
Furthermore,
molecular
mechanisms
underlying
networks
control
development
stress
plants
underscore
prospects
for
future
research
concerning
abiotic-stressed
also
discussed.
ACS Nano,
Год журнала:
2022,
Номер
17(1), С. 492 - 504
Опубликована: Дек. 16, 2022
Seeds
are
facing
harsher
environments
due
to
the
changing
climate.
Improving
seeds'
stress
resilience
is
critical
reduce
yield
loss.
Here,
we
propose
that
using
ROS-generating
nanoparticles
(NPs)
prestimulate
seeds
would
enhance
of
and
seedlings
through
triggering
stress/immune
responses.
We
examined
this
hypothesis
by
exposing
AgNPs-primed
rice
(Oryza
sativa
L.)
under
salt
conditions
(NaCl).
The
results
showed
primed
exhibit
accelerated
germination
speed,
increased
seedling
vigor
(from
22.5
47.6),
biomass
(11%),
root
length
(83%)
compared
with
hydropriming
treatment.
Multiomics
(metabolomics
transcriptomics)
analyses
reveal
AgNPs-priming
triggered
metabolic
transcriptional
reprogramming
in
seeds.
Signaling
metabolites,
such
as
salicylic
acid,
niacinamide,
glycerol-3-phosphate,
dramatically
upon
AgNPs-priming.
KEGG
pathway
analysis
reveals
activated
signaling
defense
related
pathways,
plant
hormone
signal
transduction,
glutathione
metabolism,
flavone
flavonol
biosynthesis,
MAPK
pathway,
plant-pathogen
interaction.
These
changes
indicate
More
importantly,
"stress
memory"
can
last
weeks,
providing
protection
against
blast
fungus
(Magnaporthe
oryzae).
Overall,
show
prestimulated
AgNPs
not
only
enable
faster
better
conditions,
but
also
increase
resistance
biotic
abiotic
stresses.
This
simple
nanobiostimulant-based
strategy
may
contribute
sustainable
agriculture
maintaining
agricultural
production
reducing
use
pesticides.
Frontiers in Plant Science,
Год журнала:
2023,
Номер
14
Опубликована: Май 8, 2023
Plants
can
acquire
an
improved
resistance
against
pathogen
attacks
by
exogenous
application
of
natural
or
artificial
compounds.
In
a
process
called
chemical
priming,
these
compounds
causes
earlier,
faster
and/or
stronger
responses
to
attacks.
The
primed
defense
may
persist
over
stress-free
time
(lag
phase)
and
be
expressed
also
in
plant
organs
that
have
not
been
directly
treated
with
the
compound.
This
review
summarizes
current
knowledge
on
signaling
pathways
involved
priming
Chemical
induced
systemic
(ISR)
acquired
(SAR)
is
highlighted.
roles
transcriptional
coactivator
NONEXPRESSOR
OF
PR1
(NPR1),
key
regulator
immunity,
(IR)
salicylic
acid
during
are
underlined.
Finally,
we
consider
potential
usage
enhance
pathogens
agriculture.
Journal of Integrative Plant Biology,
Год журнала:
2024,
Номер
66(3), С. 368 - 393
Опубликована: Фев. 6, 2024
Global
climate
change-caused
drought
stress,
high
temperatures
and
other
extreme
weather
profoundly
impact
plant
growth
development,
restricting
sustainable
crop
production.
To
cope
with
various
environmental
stimuli,
plants
can
optimize
the
opening
closing
of
stomata
to
balance
CO
Plant Stress,
Год журнала:
2024,
Номер
11, С. 100413 - 100413
Опубликована: Фев. 23, 2024
Salt
and
drought
stress
has
been
an
important
factor
limiting
agricultural
production,
SA
is
phenolic
involved
in
response,
but
the
function
of
response
to
dual
salt
rice
not
clear.
In
this
study,
effects
mechanisms
exogenous
SA-triggered
adaptation
were
investigated
by
detecting
physiological
biochemical
indexes
expression
tolerance
genes.
The
results
showed
that
application
could
significantly
increase
antioxidant
enzyme
activities
seedlings
under
stress,
thereby
reducing
contents
H2O2
MDA
maintaining
growth
seedlings.
Moreover,
genes
abiotic
such
as
OsDREB2A,
OsSAPK8,
OsSAPK10
OsMYB2,
up-regulated
treatment,
further
enhance
those
like
OsDREB2A
suggesting
might
regulate
activity
via
inducing
enhancing
rice.
will
enrich
knowledge
provide
a
reference
for
studying
mechanism
resistance
rice,
breeding
new
germplasm
with
improved
resistance.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Апрель 5, 2024
Abstract
Increased
exposure
to
environmental
stresses
due
climate
change
have
adversely
affected
plant
growth
and
productivity.
Upon
stress,
plants
activate
a
signaling
cascade,
involving
multiple
molecules
like
H
2
O
2,
hormones
such
as
salicylic
acid
(SA)
leading
resistance
or
stress
adaptation.
However,
the
temporal
ordering
composition
of
resulting
cascade
remains
largely
unknown.
In
this
study
we
developed
nanosensor
for
SA
multiplexed
it
with
simultaneous
monitoring
stress-induced
signals
when
Brassica
rapa
subsp.
Chinensis
(Pak
choi)
were
subjected
distinct
treatments,
namely
light,
heat,
pathogen
mechanical
wounding.
Nanosensors
reported
dynamics
wave
characteristics
generation
each
stress.
Based
on
these
insights,
formulated
biochemical
kinetic
model
that
suggests
early
waveform
encodes
information
specific
type.
These
results
demonstrate
sensor
multiplexing
can
reveal
mechanisms
in
plants,
aiding
developing
climate-resilient
crops
pre-symptomatic
diagnoses.
