Decoding submergence tolerance in Prunus persica: Integrated transcriptomic and metabolomic acclimations of antioxidant system, cell wall dynamics, and hormonal signaling
Horticulture Advances,
Год журнала:
2025,
Номер
3(1)
Опубликована: Фев. 10, 2025
Abstract
Low
oxygen
stress
(hypoxia)
induced
by
submergence
significantly
impairs
respiration
in
fruit
trees,
leading
to
reduced
yield
and,
extreme
cases,
tree
mortality.
While
extensive
research
has
focused
on
the
root
responses
of
peach
trees
waterlogging,
mechanisms
underlying
leaf
complete
remain
poorly
understood.
In
this
study,
both
transcriptomic
and
metabolic
approaches
were
employed
explore
differential
tolerance
between
two
cultivars:
'Dongxi
Xiaoxian'
(DX),
which
exhibits
tolerance,
'Hujing
Milu'
(HM),
is
sensitive.
Compared
HM,
DX
leaves
experienced
less
decline
verdancy,
chlorophyll,
carotenoid
content
under
submergence.
also
showed
enhanced
antioxidant
activities
ROS
scavengers
levels
H
2
O
MDA,
correlating
with
improved
tolerance.
Transcriptomic
analysis
revealed
significant
alterations
expression
genes
involved
photosynthesis,
glycan
biosynthesis,
α-linolenic
acid
metabolism
cultivars.
Key
metabolites,
including
sugars
(sorbitol
sucrose),
amino
acids
(phenylalanine
L-norvaline),
cell
wall
polysaccharides
(lignin
pectin),
plant
hormones
(jasmonic
salicylic
acid),
identified
as
critical
for
DX's
superior
These
findings
elucidate
submergence,
providing
insights
into
potential
strategies
genetic
improvement
aimed
at
enhancing
hypoxia
resistance
trees.
Язык: Английский
MicroRNAs in Plants Development and Stress Resistance
Plant Cell & Environment,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 21, 2025
ABSTRACT
Plant
growth
and
development
are
governed
by
a
rigorously
timed
sequence
of
ontogenetic
programmes.
MicroRNAs
(miRNAs),
class
short
noncoding
RNAs,
function
as
master
regulators
gene
expression
targeting
mRNAs
for
cleavage
or
direct
translational
inhibition
at
the
posttranscriptional
level
in
eukaryotes.
Numerous
miRNA
molecules
that
control
significant
agronomic
properties
plants
have
been
found.
On
one
hand,
miRNAs
target
transcription
factors
(TFs)
to
determine
plant
structure,
such
root
development,
internode
elongation,
leaf
morphogenesis,
sex
determination
nutrient
transition.
other
alter
levels
adapt
biological
abiotic
stresses,
including
fungi,
bacteria,
viruses,
drought,
waterlogging,
high
temperature,
low
salinity,
deficiencies,
heavy
metals
stresses.
To
fully
understand
role
plants,
we
review
regulatory
stress
resistance.
Beyond
that,
propose
novel
can
be
effectively
further
studied
with
artificial
(amiRNA)
tandem
mimics
(STTM)
delivery
vitro
used
improve
crop
yield
agricultural
sustainability.
Язык: Английский