Frontiers in Plant Science,
Journal Year:
2024,
Volume and Issue:
15
Published: Aug. 1, 2024
Introduction
Salt
stress
is
a
major
abiotic
that
affects
crop
growth
and
productivity.
Choline
Chloride
(CC)
has
been
shown
to
enhance
salt
tolerance
in
various
crops,
but
the
underlying
molecular
mechanisms
rice
remain
unclear.
Methods
To
investigate
regulatory
mechanism
of
CC-mediated
rice,
we
conducted
morpho-physiological,
metabolomic,
transcriptomic
analyses
on
two
varieties
(WSY,
salt-tolerant,
HHZ,
salt-sensitive)
treated
with
500
mg·L
-1
CC
under
0.3%
NaCl
stress.
Results
Our
results
showed
foliar
application
improved
morpho-physiological
parameters
such
as
root
traits,
seedling
height,
strength
index,
fullness,
leaf
area,
photosynthetic
parameters,
pigments,
starch,
fructose
content
stress,
while
decreasing
soluble
sugar,
sucrose,
sucrose
phosphate
synthase
levels.
Transcriptomic
analysis
revealed
regulation
combined
treatment
induced
changes
expression
genes
related
starch
metabolism,
citric
acid
cycle,
carbon
sequestration
organs,
antenna
proteins
both
varieties.
Metabolomic
further
supported
these
findings,
indicating
photosynthesis,
fixation
pathways
were
crucial
tolerance.
Discussion
The
metabolomic
data
suggest
enhances
by
activating
distinct
transcriptional
cascades
phytohormone
signaling,
along
multiple
antioxidants
unique
metabolic
pathways.
These
findings
provide
basis
for
understanding
metabolite
synthesis
gene
response
may
inform
strategies
improving
resilience
Frontiers in Plant Science,
Journal Year:
2025,
Volume and Issue:
15
Published: Jan. 9, 2025
Salt
stress
significantly
affects
plant
growth,
and
Na+
has
gained
attention
for
its
potential
to
enhance
adaptability
saline
conditions.
However,
the
interactions
between
Na+,
plants,
rhizosphere
bacterial
communities
remain
unclear,
hindering
a
deeper
understanding
of
how
contributes
resilience
under
salt
stress.
This
study
aimed
investigate
mechanisms
through
which
promotes
alfalfa's
adaptation
by
modifying
communities.
We
examined
metabolic
activity
community
composition
both
bacteria
treatment.
Our
results
revealed
significant
changes
in
metabolism
following
addition.
not
only
promoted
growth
but
also
induced
shifts
plant-associated
community,
increasing
abundance
species
linked
resistance
Furthermore,
chemical
characteristics
alfalfa
were
strongly
correlated
with
network
complexity
These
suggest
that
plays
crucial
role
enhancing
fostering
beneficial
rhizosphere.
finding
highlights
leveraging
plant-microbe
systems
improve
crop
productivity
agricultural
environments.
