bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 23, 2024
Abstract
Plant
responses
to
changing
environments
afford
complex
regulation
at
transcriptome
and
proteome
level
maintain
metabolic
homeostasis.
Homeostasis
itself
constitutes
a
dynamic
equilibrium
of
reactions
transport
processes
among
cellular
compartments.
In
the
present
study,
we
aimed
highest
possible
resolution
this
network
by
combining
analysis
transcriptome,
subcellular
resolved
metabolome
plants
exposed
rising
carbon
dioxide
concentrations
over
time
course
one
week.
To
prove
suitability
our
approach,
included
mutants
affected
in
photorespiratory
metabolism
and,
thus,
should
deviate
from
wildtype
their
response
elevated
CO
2
.
Our
multi-omics
revealed
that
hpr1-1
mutant,
defective
peroxisomal
hydroxypyruvate
reduction,
is
also
cytosolic
pyruvate
metabolism,
reaching
out
cysteine
synthesis,
while
hexokinase
mutant
hxk1
displays
disturbed
redox
balance
upon
levels.
For
third
mitochondrial
protein
BOU,
found
compelling
evidence
function
transporter
related
lipoic
acid
thus
challenging
current
interpretations.
This
demonstrates
combined
omics
approach
introduced
here
opens
new
insights
into
interaction
pathways
shared
different
Summary
Sessile
plants
harness
mitochondria
and
chloroplasts
to
sense
adapt
diverse
environmental
stimuli.
These
complex
processes
involve
the
generation
of
pivotal
signaling
molecules,
including
reactive
oxygen
species
(ROS),
phytohormones,
volatiles,
metabolites.
Furthermore,
specific
modulation
chloroplast
proteins,
through
activation
or
deactivation,
significantly
enhances
plant's
capacity
engage
with
its
dynamic
surroundings.
While
existing
reviews
have
extensively
covered
role
plastidial
retrograde
modules
in
developmental
light
signaling,
our
focus
lies
investigating
how
leverage
photosynthetic
ROS
navigate
fluctuations
counteract
oxidative
stress,
thereby
sustaining
primary
metabolism.
Unraveling
nuanced
interplay
between
plant
stress
responses
holds
promise
for
uncovering
new
insights
that
could
reinforce
resistance
optimize
net
photosynthesis
rates.
This
exploration
aspires
pave
way
innovative
strategies
enhance
resilience
agricultural
productivity
amidst
changing
conditions.
Journal of Experimental Botany,
Год журнала:
2024,
Номер
75(15), С. 4494 - 4511
Опубликована: Фев. 6, 2024
During
land
plant
evolution,
the
number
of
genes
encoding
for
components
thiol
redox
regulatory
network
and
generator
systems
reactive
oxygen
species
(ROS)
expanded,
tentatively
indicating
that
they
have
a
role
in
tailored
environmental
acclimatization.
This
hypothesis
has
been
validated
both
experimentally
theoretically
during
last
few
decades.
Recent
developments
dynamic
redox-sensitive
GFP
(roGFP)-based
vivo
sensors
H2O2
potential
glutathione
pool
paved
way
dissecting
kinetics
changes
occur
these
crucial
parameters
response
to
stressors.
The
versatile
cellular
sensory
system
monitors
alterations
metabolism
controls
activity
target
proteins,
thereby
affects
most,
if
not
all,
processes
ranging
from
transcription
translation
metabolism.
review
uses
examples
describe
redox-
ROS-dependent
realising
appropriate
responses
diverse
stresses.
selected
case
studies
concern
different
challenges,
namely
excess
excitation
energy,
heavy
metal
cadmium
metalloid
arsenic,
nitrogen
or
phosphate
shortages
as
nutrient
deficiency,
wounding,
nematode
infestation.
Each
challenge
redox-regulatory
ROS
network,
but
our
present
state
knowledge
also
points
toward
pressing
questions
remain
open
relation
regulation
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(13), С. 7255 - 7255
Опубликована: Июль 1, 2024
Plant
lipids
are
essential
cell
constituents
with
many
structural,
storage,
signaling,
and
defensive
functions.
During
plant-pathogen
interactions,
play
parts
in
both
the
preexisting
passive
defense
mechanisms
pathogen-induced
immune
responses
at
local
systemic
levels.
They
interact
various
components
of
plant
network
can
modulate
positively
negatively.
Under
biotic
stress,
lipid
signaling
is
mostly
associated
oxygenated
natural
products
derived
from
unsaturated
fatty
acids,
known
as
oxylipins;
among
these,
jasmonic
acid
has
been
great
interest
a
specific
mediator
against
necrotrophic
pathogens.
Although
numerous
studies
have
documented
contribution
oxylipins
other
lipid-derived
species
immunity,
their
roles
interactions
involvement
require
further
elucidation.
This
review
presents
most
relevant
recent
on
molecules
involved
aim
providing
deeper
insight
into
underpinning
lipid-mediated
regulation
system.
Plants,
Год журнала:
2025,
Номер
14(2), С. 254 - 254
Опубликована: Янв. 17, 2025
Low-salinity
conditions
are
generally
used
in
land-based
cultivation
to
promote
the
germination
and
growth
of
Zostera
marina
L.
improve
restoration
effect
seagrass
beds.
Different
salinity
lead
morphological
physiological
differences.
To
investigate
impacts
osmotic
pressure
on
early
development
seeds,
this
study
utilized
seawater
with
different
PEG-6000
solutions
simulate
various
non-ionic
pressures
examine
germination,
cotyledon
growth,
leaf
differentiation
over
28
days,
as
well
determine
biochemical
traits
days
1,
3,
5,
7.
The
results
show
that
cumulative
rate
LS-0
was
91.6%,
but
it
not
significantly
affected
by
PEG
solutions.
salinities
(5,
10,
15)
had
no
significant
rate,
which
ranged
from
76.4%
78.8%:
low
stimulated
accelerating
water
uptake
through
increased
regulated
salinity.
In
LS-10,
most
condition,
35.2%,
while
PEG-10
displayed
6.4%.
total
soluble
sugar
protein
seeds
decreased.
Antioxidant
enzyme
activities
were
activated
under
low-salinity
conditions,
supported
within
a
tolerable
oxidative
stress
range.
Frontiers in Plant Science,
Год журнала:
2025,
Номер
16
Опубликована: Март 12, 2025
Introduction
Oxylipins
regulate
the
response
of
plants
to
biotic
and
abiotic
stress
factors
tolerance
unfavorable
conditions.
While
signaling
pathway
jasmonic
acid
has
been
intensively
studied,
little
is
known
about
signal
transduction
that
mediates
responses
reactive
electrophile
oxylipins
such
as
12-oxo
phytodienoic
prostaglandins.
Methods
results
Here,
a
CW-type
zinc
finger
protein
(ZIFI1,
At3g62900)
was
identified
new
factor
in
mutant
screen.
Transcriptome
analysis
Arabidopsis
mutants
with
defect
this
gene
showed
involved
regulating
expression.
Only
half
(327
genes)
646
genes
induced
by
electrophilic
oxylipin
prostaglandin
wild
type
also
up-regulated
zifi1
mutant.
The
differentially
expressed
are
enriched
related
detoxification
oxidative
stress.
Therefore,
it
tested
whether
resulted
altered
sensitivity
factors.
oxygen
species
butyl
hydroperoxide
xenobiotic
triiodobenzoic
increased
In
addition,
production
bacterial
elicitor
flg22
accelerated.
Discussion
provide
insights
into
electrophiles
connection
different
pathways.
