Physiologia Plantarum,
Journal Year:
2025,
Volume and Issue:
177(2)
Published: March 1, 2025
Oats
(Avena
sativa
L)
is
a
temperate
cereal
and
an
important
healthy
cultivated
for
food
feed.
Therefore,
understanding
drought
responses
in
oats
could
significantly
impact
oat
production
under
harsh
climatic
conditions.
In
particular,
during
anthesis
(flowering)
affects
grain
filling,
quality
yield.
Here,
we
characterised
metabolite
of
two
Mediterranean
L.)
cultivars,
Flega
Patones,
stress
at
anthesis.
the
more
drought-tolerant
developing
grains
from
top
(older)
bottom
(younger)
spikelets
primary
panicle
were
found
to
be
larger
size
response
drought,
suggesting
accelerated
development.
showed
rapid
transition
flowering
development
drought.
The
metabolomes
source
(sheath,
flag
leaf,
rachis)
sink
(developing
grains)
tissues
Patones
differential
accumulation
fatty
acids
levels,
including
α-linolenic
acid,
sugars
amino
with
enhanced
energy
metabolism
both
tissues.
Lower
levels
glutathione
ophthalmic
acid
indicators
oxidative
stress.
Our
study
revealed
distinct
regulatory
patterns
these
cultivars
acid-associated
processes
may
accelerate
grain-filling,
while
appears
influence
traits
such
as
time.
Overall,
this
work
provides
first
insight
into
regulation
oat's
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(13), P. 7255 - 7255
Published: July 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.
Forests,
Journal Year:
2025,
Volume and Issue:
16(1), P. 165 - 165
Published: Jan. 16, 2025
The
fig
(the
syconium
of
the
Ficus
tree)
and
its
pollinating
wasp
represent
exceptional
examples
for
researching
plant–insect
interactions
due
to
their
remarkable
specificity
in
species
interaction
mutually
beneficial
symbiotic
relationship.
However,
mechanisms
underlying
developmental
process
monoecious
figs
response
entry
wasps
(pollinators)
metabolic
changes
occurring
during
this
remain
elusive.
Our
study
employed
a
combination
controlled
experiments
field
LC-MS
methods
investigate
impact
on
phase
figs,
as
well
alterations
process.
A
total
381
metabolites
155
differential
were
identified,
with
predominant
classes
being
organic
acids,
lipids,
benzene
aromatic
compounds.
results
suggest
that
absence
entry,
receptive
would
exhibit
an
extended
duration.
upon
wasps,
terminate
within
span
1
2
days,
concomitant
substantial
fluctuations
composition
proportions
fig.
research
focuses
analysis
linoleic
acid
metabolism,
phenylpropanoid
biosynthesis,
flavonoid
biosynthesis
pathways.
findings
triggers
regulatory
figs.
Prior
primarily
regulate
growth
development.
after
predominantly
govern
lipid
accumulation
establishment
defense
mechanisms,
indicating
transition
This
perspective
explains
why
promptly
enter
interflower
is
not
attractive
how
achieve
reproductive
balance
through
regulation
different
provides
scientific
evidence
elucidating
stability
mechanism
mutualistic
system.
Plants,
Journal Year:
2025,
Volume and Issue:
14(3), P. 465 - 465
Published: Feb. 5, 2025
Verticillium
wilt
and
Fusarium
cause
significant
losses
in
cotton
(Gossypium
hirsutum)
production
have
a
economic
impact.
This
study
determined
the
functional
role
of
GhSTR1,
member
ABCG
subfamily
ATP-binding
cassette
(ABC)
transporters,
that
mediates
defense
responses
against
various
plant
pathogens.
We
identified
GhSTR1
as
homolog
STR1
from
Medicago
truncatula
highlighted
its
evolutionary
conservation
potential
mechanisms.
Expression
profiling
revealed
displays
tissue-specific
spatiotemporal
dynamics
under
stress
conditions
caused
by
dahliae
oxysporum.
Functional
validation
using
virus-induced
gene
silencing
(VIGS)
showed
improved
disease
resistance,
resulting
milder
symptoms,
less
vascular
browning,
reduced
fungal
growth.
Furthermore,
AtSTR1
loss-of-function
mutant
Arabidopsis
thaliana
exhibited
similar
resistance
phenotypes,
highlighting
conserved
regulatory
pathogen
defense.
In
addition
to
mutation
also
enhanced
vegetative
reproductive
growth
plant,
including
increased
root
length,
rosette
leaf
number,
height
without
compromising
drought
tolerance.
These
findings
suggest
trade-off
between
growth,
offering
target
for
optimizing
both
traits
crop
improvement.
identifies
key
regulator
plant–pathogen
interactions
dynamics,
providing
foundation
developing
durable
strategies
enhance
cotton’s
yield
biotic
abiotic
conditions.
New Phytologist,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 7, 2025
Lipids
play
crucial
roles
in
plant-microbe
interactions,
functioning
as
structural
components,
signaling
molecules,
and
microbe-associated
molecular
patterns
(MAMPs).
However,
the
mechanisms
underlying
lipid
perception
plants
remain
largely
unknown.
Here,
we
investigate
immune
responses
activated
barley
(Hordeum
vulgare)
by
extracts
from
beneficial
root
endophytic
fungus
Serendipita
indica
compare
them
to
elicited
chitohexaose
fungal
sterol
ergosterol.
We
demonstrate
that
S.
extract
induces
hallmarks
of
pattern-triggered
immunity
(PTI)
barley.
Ergosterol
emerged
primary
immunogenic
component
was
detected
apoplastic
fluid
indica-colonized
roots.
Notably,
colonization
suppresses
ergosterol-induced
burst
reactive
oxygen
species
(ROS)
By
employing
a
multi-omics
approach,
which
integrates
transcriptomics,
phosphoproteomics,
metabolomics,
provide
evidence
for
phosphorylation
phosphatidylinositol
phosphate
(PIP)
metabolic
enzymes
activation
diterpene
biosynthesis
upon
exposure
lipids.
Furthermore,
show
phosphatidic
acid
(PA)
enhances
lipid-mediated
ROS
production
These
findings
indicate
plant
lipids
facilitate
barley,
providing
new
insights
into
lipid-based
interactions.
Frontiers in Plant Science,
Journal Year:
2025,
Volume and Issue:
16
Published: April 1, 2025
Phospholipase
C
(PLC)
is
an
enzyme
that
catalyzes
the
hydrolysis
of
glycerophospholipids
and
can
be
classified
as
phospholipase-specific
PLC
(PI-PLC)
non-specific
(NPC)
depending
on
its
specific
substrate.
In
this
study,
neomycin
sulfate
(NS,
100
mM)
was
used
to
inhibit
activity
phospholipase
in
maize
seedlings,
effect
lipid
metabolism
investigated
by
combined
analysis
transcriptome
lipidome.
Lipidomic
showed
when
inhibited,
content
phospholipids
more
than
10%
increase
due
elevated
accumulation
PC
PE.
At
same
time,
transcriptomic
data
suggested
activation
de
novo
biosynthesis
PE
from
choline
ethanolamine
via
upregulated
CCT
PECT,
respectively.
Thus,
inhibition
phospholipid
enhancement
synthesis
together
contribute
total
phospholipids.
Glycolipids
account
for
around
60%
lipids
leaves.
Under
NS
treatment,
MGDG
decreased
significantly,
while
DGDG
increased.
Our
results
indicate
treatment
may
cause
damage
photosynthetic
membrane
lipids,
whereas
bilayer
provide
a
kind
protection
maintain
stability
chloroplasts.
These
findings
suggest
plays
key
role
plasma
metabolism.
