Physiologia Plantarum,
Journal Year:
2023,
Volume and Issue:
175(5)
Published: Aug. 1, 2023
Abstract
Amino
acid
metabolism
is
an
important
factor
in
regulating
nitrogen
source
assimilation
and
source/sink
transport
soybean.
Melatonin
can
improve
plant
stress
resistance,
but
whether
it
affects
amino
not
known.
Therefore,
this
study
investigated
exogenous
melatonin
had
effect
on
of
soybean
under
drought
conditions
explored
its
relationship
with
yield.
The
treatments
were
normal
water
supply
treatment
(WW),
(D),
group
(D
+
M),
sprayed
100
μmol/L
melatonin.
effects
grain
filling
studied
by
physiological
omics
experiments
using
Kangxian
9
(drought‐sensitive
variety)
Suinong
26
(drought‐resistant
cultivars.
results
showed
that
decreased
the
activity
carbon
metabolizing
enzymes,
which
inhibited
accumulation
dry
matter
protein,
In
drought‐sensitive
variety,
glycoenzymes
synthetases
synthetic
genes
upregulated
melatonin‐treated
soybeans,
hence
enzyme
increased,
increasing
carbohydrate
contents
simultaneously.
This
resulted
higher
yield
than
drought‐stressed
treated
drought‐resistant
weight
per
increased
7.98%
6.57%
2020
2021,
respectively,
while
23.20%
14.07%
variety
during
respective
years.
conclusion,
enhance
content
upregulating
expression
metabolic
pathway
related
genes,
thus
stress.
Journal of Experimental Botany,
Journal Year:
2022,
Volume and Issue:
73(8), P. 2275 - 2289
Published: Feb. 4, 2022
Abstract
The
flux,
distribution,
and
storage
of
soluble
sugars
regulate
crop
yield
in
terms
starch,
oil,
protein,
total
carbohydrates,
affect
the
quality
many
horticultural
products.
Sugar
transporters
contribute
to
phloem
loading
unloading.
mechanisms
have
been
studied
detail,
but
complex
diverse
unloading
sugar
sink
organs
are
less
explored.
Unloading
subsequent
transport
for
carbohydrates
vary
different
organs.
Analyzing
important
organs,
such
as
cereal
seeds,
fruits,
or
stems
sugarcane,
will
provide
information
genetic
improvements
increase
fruit
quality.
This
review
discusses
current
research
progress
on
involved
carbohydrate
roles
accumulation
also
discussed
highlight
their
contribution
efficient
breeding.
PLANT PHYSIOLOGY,
Journal Year:
2023,
Volume and Issue:
193(2), P. 888 - 899
Published: May 24, 2023
Fruit
sweetness
is
determined
by
the
amount
and
composition
of
sugars
in
edible
flesh.
The
accumulation
sugar
a
highly
orchestrated
process
that
requires
coordination
numerous
metabolic
enzymes
transporters.
This
enables
partitioning
long-distance
translocation
photoassimilates
from
source
tissues
to
sink
organs.
In
fruit
crops,
ultimately
accumulate
fruit.
Whereas
tremendous
progress
has
been
achieved
understanding
function
individual
genes
associated
with
metabolism
transport
non-fruit
there
less
known
about
transporters
responsible
for
crop
species.
review
identifies
knowledge
gaps
can
serve
as
foundation
future
studies,
comprehensive
updates
focusing
on
(1)
physiological
roles
allocation
contribute
crops;
(2)
molecular
mechanisms
underlying
transcriptional
posttranslational
regulation
metabolism.
We
also
provide
insights
into
challenges
directions
studies
name
several
promising
should
be
targeted
gene
editing
pursuit
optimized
enhance
fruits.
The Plant Journal,
Journal Year:
2024,
Volume and Issue:
118(3), P. 787 - 801
Published: Jan. 11, 2024
SUMMARY
Soluble
sugar
content
is
a
key
component
in
controlling
fruit
flavor,
and
its
accumulation
largely
determined
by
metabolism
transportation.
When
the
diurnal
temperature
range
greater,
fleshy
fruits
accumulated
more
soluble
sugars
become
sweeter.
However,
molecular
mechanism
underlying
this
response
remains
unknown.
In
study,
we
verified
that
low‐temperature
treatment
promoted
apple
found
was
due
to
upregulation
of
Tonoplast
Sugar
Transporter
genes
MdTST1/2.
A
combined
strategy
using
assay
for
transposase‐accessible
chromatin
(ATAC)
sequencing
gene
expression
cis
‐acting
elements
analyses,
identified
two
C‐repeat
Binding
Factors,
MdCBF1
MdCBF2
,
were
induced
low
might
be
upstream
transcription
factors
MdTST1/2
.
Further
studies
established
MdCBF1/2
could
bind
promoters
activate
their
expression.
Overexpression
or
calli
significantly
upregulated
MdTST1
/
2
increased
concentrations
glucose,
fructose,
sucrose.
Suppression
and/or
MdTST2
an
‐overexpression
background
abolished
positive
effect
on
accumulation.
addition,
simultaneous
silencing
downregulated
failed
accumulate
under
conditions,
indicating
‐mediated
dependent
Hence,
concluded
‐
module
crucial
apples
temperatures.
Our
findings
provide
mechanistic
components
coordinating
relationship
between
as
well
new
avenues
improve
quality.
Cell Reports,
Journal Year:
2024,
Volume and Issue:
43(3), P. 113909 - 113909
Published: March 1, 2024
The
deciduous
tree
Idesia
polycarpa
can
provide
premium
edible
oil
with
high
polyunsaturated
fatty
acid
contents.
Here,
we
generate
its
high-quality
reference
genome,
which
is
∼1.21
Gb,
comprising
21
pseudochromosomes
and
42,086
protein-coding
genes.
Phylogenetic
genomic
synteny
analyses
show
that
it
diverged
Populus
trichocarpa
about
16.28
million
years
ago.
Notably,
most
biosynthesis
genes
are
not
only
increased
in
number
genome
but
also
highly
expressed
the
fruits.
Moreover,
identify,
through
genome-wide
association
analysis
RNA
sequencing,
I.
SUGAR
TRANSPORTER
5
(IpSTP5)
gene
as
a
positive
regulator
of
accumulation
Silencing
IpSTP5
by
virus-induced
silencing
causes
significant
reduction
content
fruits,
suggesting
has
potential
to
be
used
molecular
marker
breed
high-oil-content
cultivars.
Our
results
collectively
lay
foundation
for
breeding
elite
cultivars
polycarpa.
BMC Plant Biology,
Journal Year:
2025,
Volume and Issue:
25(1)
Published: April 1, 2025
'Fengtang'
plum
is
a
cultivar
known
for
its
significant
sugar
accumulation.
Although
various
studies
have
been
conducted
on
metabolism,
the
specific
molecular
mechanisms
underlying
high
accumulation
in
remain
largely
unexplored.
Here,
we
present
role
of
Sugars
Will
Eventually
be
Exported
Transporters
(SWEETs)
family
regulating
fruits.
In
this
study,
18
PsSWEET
genes
were
identified
based
homology
with
Arabidopsis
and
Pfam
database
(ID:
PF03083).
Alignment
multiple
sequences
revealed
that
seven
alpha-helical
transmembrane
regions
(7-TMs)
are
conserved
family.
Phylogenetic
analysis
demonstrated
SWEET
members
could
categorized
into
four
clades.
Nine
predicted
motifs
within
plum.
The
unevenly
distributed
across
five
chromosomes,
synteny
three
pairs
fragmented
duplication
events.
PsSWEET1a
PsSWEET17b
pivotal
fruit
development.
Subcellular
localization
analyses
indicated
localized
to
nucleus
cytoplasm,
while
associated
vacuolar
membrane.
Gene
function
was
further
validated
through
transient
silencing
overexpression
fruits,
which
significantly
impacted
their
soluble
content.
Heterologous
expression
tomato
resulted
an
increase
content
due
modulation
accumulation-related
enzyme
activities.
PsSWEET17b,
regulate
fruit,
successfully
identified.
This
study
provides
comprehensive
insight
gene
plum,
offering
novel
perspectives
regulation
laying
critical
foundation
enhancement
quality.
PLANT PHYSIOLOGY,
Journal Year:
2023,
Volume and Issue:
192(2), P. 1378 - 1395
Published: March 20, 2023
Soluble
sugar
accumulation
in
fruit
ripening
determines
fleshy
quality.
However,
the
molecular
mechanism
for
this
process
is
not
yet
understood.
Here,
we
showed
a
transcriptional
repressor,
CmMYB44
regulates
sucrose
and
ethylene
synthesis
oriental
melon
(Cucumis.
melo
var.
makuwa
Makino)
fruit.
Overexpressing
suppressed
production.
Furthermore,
repressed
activation
of
CmSPS1
(sucrose
phosphate
synthase
1)
CmACO1
(ACC
oxidase
1),
two
key
genes
accumulation,
respectively.
During
later
stages
ripening,
repressive
effect
on
could
be
released
by
overexpressing
CmERFI-2
(ethylene
response
factor
I-2)
exogenous
"HS"
(high
fruit).
acted
upstream
as
repressor
directly
binding
promoter
region,
indirectly
stimulating
expression
level
CmACO1.
Taken
together,
provided
regulatory
pathway
mediated
CmMYB44,
which
degree
sheds
light
responses
triggered
sensing
that
enable
ripening.