bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Май 22, 2023
Abstract
Successful
recognition
of
pathogen
effectors
by
plant
disease
resistance
proteins
(effector
triggered
immunity,
ETI)
contains
the
invading
through
a
localized
hypersensitive
response
(HR).
In
addition,
ETI
activates
long-range
signalling
cascades
that
establish
broad
spectrum
systemic
acquired
(SAR).
Using
novel
and
sensitive
reporter
we
have
been
able
to
image
spatio-temporal
dynamics
SAR.
We
demonstrate
local
SAR
signal
generation,
followed
rapid
propagation
establishment
in
responding
leaves,
is
dependent
on
both
jasmonate
biosynthesis
perception.
Further,
initiates
calcium-
jasmonate-dependent
surface
electrical
potentials,
reminiscent
those
activated
herbivory
but
with
slower
kinetics.
Thus,
crucial
initiation
defence
responses
against
diverse
range
phytopathogens.
Journal of Plant Physiology,
Год журнала:
2022,
Номер
277, С. 153809 - 153809
Опубликована: Сен. 7, 2022
Methyl
salicylate
is
a
volatile
compound,
the
synthesis
of
which
takes
place
via
salicylic
acid
pathway
in
plants.
Both
compounds
can
be
involved
development
systemic
acquired
resistance
and
they
play
their
role
partly
independently.
Salicylic
transport
has
an
important
long-distance
signalling,
but
methyl
also
been
suggested
as
phloem-based
mobile
signal,
demethylated
to
form
acid,
inducing
de-novo
distal
tissue.
Despite
fact
that
protective
abiotic
stress
responses
tolerance,
very
few
investigations
have
reported
on
similar
effects
salicylate.
In
addition,
are
often
treated
simply
non-volatile
forms
same
several
cases
act
way,
it
hard
highlight
differences
mode
action.
The
main
aim
present
review
reveal
individual
action
mechanism
resistance,
plant-plant
communication
various
conditions
fruits
International Journal of Molecular Sciences,
Год журнала:
2023,
Номер
24(17), С. 13052 - 13052
Опубликована: Авг. 22, 2023
Reactive
oxygen
species
(ROS)
are
important
regulating
factors
that
play
a
dual
role
in
plant
and
human
cells.
As
the
first
messenger
response
organisms,
ROS
coordinate
signals
growth,
development,
metabolic
activity
pathways.
They
also
can
act
as
an
alarm
mechanism,
triggering
cellular
responses
to
harmful
stimuli.
However,
excess
cause
oxidative
stress-related
damage
oxidize
organic
substances,
leading
malfunctions.
This
review
summarizes
current
research
status
mechanisms
of
eukaryotic
cells,
highlighting
differences
similarities
between
two
elucidating
their
interactions
with
other
reactive
substances
ROS.
Based
on
similar
regulatory
pathways
kingdoms,
this
proposes
future
developments
provide
opportunities
develop
novel
strategies
for
treating
diseases
or
creating
greater
agricultural
value.
Essays in Biochemistry,
Год журнала:
2022,
Номер
66(5), С. 695 - 702
Опубликована: Сен. 1, 2022
Abstract
Herbivore-induced
plant
volatiles
regulate
defenses
in
undamaged
neighboring
plants.
Understanding
the
mechanisms
by
which
are
taken
up,
perceived,
and
translated
into
canonical
defense
signaling
pathways
is
an
important
frontier
of
knowledge.
Volatiles
can
enter
plants
through
stomata
cuticle.
They
likely
perceived
membrane-associated
receptors
as
well
intracellular
receptors.
The
latter
involves
metabolization
transport
across
cell
membranes
volatile
transporters.
Translation
priming
induction
typically
mitogen-activated
protein
kinases
(MAPKs),
WRKY
transcription
factors,
jasmonates.
We
propose
that
broad
range
molecular
processes
involved
will
result
substantial
spatiotemporal
ontogenetic
variation
responsiveness
to
volatiles,
with
consequences
for
plant–environment
interactions.
Journal of Experimental Botany,
Год журнала:
2023,
Номер
74(10), С. 3033 - 3046
Опубликована: Март 11, 2023
Abstract
Defense
responses
in
plants
are
based
on
complex
biochemical
processes.
Systemic
acquired
resistance
(SAR)
helps
to
fight
infections
by
(hemi-)biotrophic
pathogens.
One
important
signaling
molecule
SAR
is
pipecolic
acid
(Pip),
accumulation
of
which
dependent
the
aminotransferase
ALD1
Arabidopsis.
While
exogenous
Pip
primes
defense
monocotyledonous
cereal
crop
barley
(Hordeum
vulgare),
it
currently
unclear
if
endogenous
plays
a
role
disease
monocots.
Here,
we
generated
ald1
mutants
using
CRISPR/Cas9,
and
assessed
their
capacity
mount
SAR.
Endogenous
levels
were
reduced
after
infection
mutant,
this
altered
systemic
against
fungus
Blumeria
graminis
f.
sp.
hordei.
Furthermore,
Hvald1
did
not
emit
nonanal,
one
key
volatile
compounds
that
normally
emitted
activation
This
resulted
inability
neighboring
perceive
and/or
respond
airborne
cues
prepare
for
an
upcoming
infection,
although
HvALD1
was
required
receiver
mediate
response.
Our
results
highlight
crucial
SAR,
associate
Pip,
particular
together
with
plant-to-plant
propagation
monocot
barley.
Horticulture Research,
Год журнала:
2024,
Номер
11(7)
Опубликована: Май 20, 2024
Abstract
Lilies
(genus
Lilium)
play
a
significant
role
in
the
global
cut-flower
industry,
but
they
are
highly
susceptible
to
fusarium
wilt
caused
by
Fusarium
oxysporum.
However,
Lilium
regale,
wild
lily
species,
exhibits
remarkable
resistance
F.
To
investigate
quantitative
of
L.
regale
wilt,
comprehensive
multi-omics
analysis
was
conducted.
Upon
inoculation
with
oxysporum,
roots
showed
accumulation
phenylpropane
metabolites,
including
lignin
precursors,
flavonoids,
and
hydroxycinnamic
acids.
These
findings
were
consistent
upregulated
expression
phenylpropanoid
biosynthesis-related
genes
encoding
various
enzymes,
as
revealed
transcriptomics
proteomics
analyses.
Furthermore,
metabolomics
data
demonstrated
differential
activation
monoterpenoid
isoquinoline
alkaloid
biosynthesis.
Colorimetry
high-performance
liquid
chromatography
analyses
significantly
higher
levels
total
lignin,
ferulic
acid,
phlorizin,
quercetin
contents
scales
compared
‘Siberia’
during
oxysporum
infection.
phenylpropanes
exhibited
inhibitory
effects
on
growth
suppressed
pathogenicity-related
genes.
Transcriptional
regulatory
network
suggested
that
ethylene-responsive
transcription
factors
(ERFs)
may
positively
regulate
Therefore,
LrERF4
cloned
transiently
overexpressed
wilt-susceptible
Oriental
hybrid
‘Siberia’.
The
overexpression
resulted
increased
quercetin,
while
silencing
through
RNAi
had
opposite
effect.
In
conclusion,
metabolism
plays
crucial
defense
response
against
acting
positive
regulator
International Journal of Molecular Sciences,
Год журнала:
2023,
Номер
24(4), С. 3803 - 3803
Опубликована: Фев. 14, 2023
The
growth-defense
trade-off
in
plants
is
a
phenomenon
whereby
must
balance
the
allocation
of
their
resources
between
developmental
growth
and
defense
against
attack
by
pests
pathogens.
Consequently,
there
are
series
points
where
signaling
can
negatively
regulate
defenses
inhibit
growth.
Light
perception
various
photoreceptors
has
major
role
control
thus
many
it
influence
defense.
Plant
pathogens
secrete
effector
proteins
to
manipulate
hosts.
Evidence
emerging
that
some
these
effectors
target
light
pathways.
Several
from
different
kingdoms
life
have
converged
on
key
chloroplast
processes
take
advantage
regulatory
crosstalk.
Moreover,
plant
also
perceive
react
complex
ways
own
growth,
development,
virulence.
Recent
work
shown
varying
wavelengths
may
provide
novel
way
controlling
or
preventing
disease
outbreaks
plants.
Redox Biology,
Год журнала:
2025,
Номер
84, С. 103702 - 103702
Опубликована: Май 27, 2025
Plants
and
animals/humans
have
evolved
sophisticated
innate
immune
systems
to
cope
with
microbial
attack.
Innate
immunity
implies
the
presence
of
membrane-located
intracellular
receptors
recognize
compounds
released
by
damage
or
invading
pathogens.
After
detection
receptor
molecules
initiate
defense
signaling,
resulting
in
cell
death
and/or
production
molecules.
Interestingly,
response
includes
also
memory
mechanisms,
which
allow
organisms
better
future
attacks.
Redox
mechanisms
play
an
important
role
signaling.
In
this
review
article,
we
compare
plants
describe
how
reversible
nitric
oxide-
reactive
oxygen
species-dependent
protein
modifications
enable
activation
signaling
proteins
transcription
factors
regulate
activity
chromatin
modifying
enzymes
establish
memory.
We
hope
encourage
efforts
characterize
further
molecular
redox
memory,
might
development
new
immunotherapies.
Physiologia Plantarum,
Год журнала:
2024,
Номер
176(4)
Опубликована: Июль 1, 2024
Both
above-
and
below-ground
parts
of
plants
are
constantly
challenged
with
microbes
interact
closely
them.
Many
plant-growth-promoting
rhizobacteria,
mostly
interacting
the
plant's
root
system,
enhance
immunity
in
a
process
described
as
induced
systemic
resistance
(ISR).
Here,
we
characterized
local
(IR)
triggered
by
model
PGPR
Pseudomonas
simiae
WCS417r
(WCS417)
Arabidopsis
thaliana.
Hydroponic
application
WCS417
to
roots
resulted
propagation
in/on
leaves
establishment
IR.
WCS417-triggered
IR
was
dependent
on
salicylic
acid
(SA)
biosynthesis
signalling
functional
pipecolic
monoterpenes,
which
classically
associated
acquired
(SAR).
further
priming
gene
expression
changes
related
SA
SAR.
A
metabarcoding
approach
applied
leaf
microbiome
revealed
significant
IR-associated
enrichment
Flavobacterium
sp..
Co-inoculation
experiments
using
At-LSPHERE
sp.
Leaf82
suggest
that
proliferation
these
bacteria
is
influenced
both
microbial
immunity-related,
plant-derived
factors.
Furthermore,
SAR
an
NPR1-dependent
manner,
suggesting
recruitment
this
bacterium
phyllosphere
Together,
data
highlight
importance
plant-microbe-microbe
interactions
reveal
new
beneficial
promoter
plant
health.