Plants,
Journal Year:
2024,
Volume and Issue:
13(24), P. 3546 - 3546
Published: Dec. 19, 2024
Pitaya
is
renowned
for
its
delicious
taste,
high
nutritional
value,
and
economic
as
well
ornamental
appeal.
Breeding
new
pitaya
varieties
can
boost
returns
by
appealing
to
consumers
with
diverse
morphological
traits.
However,
the
genetic
basis
underlying
key
traits
in
intergeneric
hybrids
of
has
yet
be
fully
understood.
This
study
investigates
dynamics
flower,
fruit,
stem
traits,
including
segregation
patterns
a
mixed
inheritance
model
major
polygenic
an
hybridization
between
‘Honghuagqinglong’
(HHQL)
(Hylocereus
stenopterus)
‘Heilong’
(HL)
(Selenicereus
grandiflorus).
The
identified
normal
or
skewed,
distribution
seven
floral,
fifteen
five
indicating
their
quantitative
nature
governed
multiple
genes.
Specifically,
flower
size
color
exhibited
hereditary
bias
towards
‘HL’
characteristics,
while
‘HHQL’
significantly
influenced
coloration
fruit
peel
pulp.
Fruit
weight
total
soluble
solids
(TSS)
content
decreased,
whereas
broader
thicker
dimensions
fewer
thorns.
offers
valuable
insights
into
variation
influence
genes
on
hybrids,
providing
useful
reference
parental
selection
breeding
programs.
PeerJ,
Journal Year:
2024,
Volume and Issue:
12, P. e17719 - e17719
Published: July 10, 2024
Dragon
fruit
has
significant
economic
value
in
many
countries
due
to
excellent
nutritional
content,
health
advantages,
and
adaptability
different
climates,
making
it
an
important
crop
the
global
industry.
This
study
aimed
gather
comprehensive
data
on
three
dragon
cultivars
by
analysing
levels
of
micronutrients,
fibre,
carbohydrates,
antioxidants,
vitamins,
minerals
their
pulps.
Uniform
samples
underwent
thorough
analysis
for
proximate
composition,
mineral
pigments,
vitamin
C,
with
statistical
methods
used
assess
differences
among
parameters
studied.
The
composition
revealed
cultivars.
Among
components,
protein
(0.40
±
0.02
g/100
g),
moisture
(91.33
0.88%),
crude
fibre
(0.32
0.07
ash
(1.27
0.09
g)
were
more
abundant
Hylocereus
costaricensis
than
undatus
megalanthus
.
On
other
hand,
had
higher
carbohydrate
(17.02
0.63
energy
(69.74
2.44
kcal/100
contents.
K
(7.23
0.35
mg/100
Ca
(1.61
0.13
Fe
(1.84
0.05
Zn
(0.37
0.034
are
highly
H.
Additionally,
highest
anthocyanin
content
(120.15
3.29
mg/g
FW)
total
carotenoid
(72.51
1.62
FW),
along
C
(8.92
soluble
phenolic
(572.48
20.77
g).
Its
remarkable
antioxidant
activity
was
further
highlighted
lowest
SC
50
(13.50
0.4
mg/mL)
its
DPPH
radical
scavenging
capacity.
sugar
(8.72
0.30
g
FW).
Hierarchical
clustering
distinct
trait
genotype
associations;
studied
cultivars,
demonstrated
superior
performance
across
multiple
traits.
Correlation
indicated
positive
correlations
several
traits,
while
principal
component
contribution
each
overall
variance,
PC1
explaining
73.95%
variance.
highlights
variations
showing
performance,
guiding
dietary
planning
functional
food
development.
Plants,
Journal Year:
2025,
Volume and Issue:
14(2), P. 178 - 178
Published: Jan. 10, 2025
The
physicochemical
properties
of
fruits
at
different
maturity
stages
using
grafting
technology
are
great
importance
since
can
alter
the
nutritional
and
functional
parameters
fruit.
In
this
study,
grafted
yellow
pitahaya
(Selenicereus
megalanthus
Haw.)
fruit,
grown
on
live
tutors,
was
evaluated
from
0
to
5.
following
response
variables
were
recorded:
fruit
weight,
diameter,
length;
pulp
weight
with
seed
peel;
color;
firmness;
total
soluble
solids
content;
titratable
acidity;
pH;
flavonoid
polyphenol
antioxidant
activity
determined
FRAP
ABTS.
results
show
that
harvested
plants
have
better
physical
characteristics
such
as
length.
However,
content
acidity
similar
in
ungrafted
plants.
highest
polyphenols,
flavonoids,
by
ABTS
found
stage
0,
decreased
ripened.
A
positive
correlation
between
content,
capacity
protein
content.
S.
technique
is
a
promising
for
sustainable
production
because
it
reduces
pesticide
use
combatting
soil
pathogens
not
modifying
quality.
International Journal of Molecular Sciences,
Journal Year:
2025,
Volume and Issue:
26(3), P. 1250 - 1250
Published: Jan. 31, 2025
Flower
induction
in
pitaya
(Hylocereus
polyrhizus)
is
regulated
by
complex
gene
networks
involving
multiple
signaling
pathways
that
ensure
flower
bud
(FB)
formation,
but
its
molecular
determinants
remain
largely
unknown.
In
this
study,
we
aimed
to
identify
key
genes
and
involved
analyzing
transcriptomics
profiles
from
differentiating
buds.
Our
results
indicate
the
process
driven
a
combination
of
sugar,
hormone,
transcription
factor
(TF),
flowering-related
genes.
We
found
during
FB
period,
levels
starch,
auxin
(AUX),
cytokinin
(CTK)
active
forms
dihydrozeatin
riboside
(dhZR),
zeatin
(ZR),
N6-isopentenyladenosine
(iPA),
brassinosteroid
(BR)
increase
late
stage
(LS),
while
gibberellins
(GA3,
GA4)
decrease,
metabolic
hormonal
shift
essential
for
flowering.
Differential
expression
analysis
identified
starch
sugar
metabolism,
AUX,
CTK,
BR
synthesis,
(GA)
degradation,
with
notable
differential
photoperiod
(COL,
CDF,
TCP),
age-related
(SPL),
flowering
(FT,
FTIP,
AGL,
SOC1).
This
study
reveals
multidimensional
regulatory
network
formation
pitaya,
primarily
mediated
crosstalk
between
hormone
pathways,
providing
new
insights
into
mechanism
pitaya.
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(10), P. 5435 - 5435
Published: May 16, 2024
Yellow
pitahaya
is
a
tropical
fruit
that
has
gained
popularity
in
recent
years.
Natural
elicitors
are
compounds
can
stimulate
the
resistance
and
quality
of
fruits.
The
objective
this
study
was
to
evaluate
effects
natural
elicitors,
methyl
salicylate
(MeSa),
jasmonate
(JaMe),
salicylic
acid
(SA)
oxalic
(OA)
at
concentrations
0.1
mM
(MeSa
JaMe)
5
(SA
OA),
applied
yellow
fruits
under
greenhouse
conditions.
After
full
blossom,
four
applications
were
made
with
frequency
15
days.
At
time
harvest
after
storage,
following
variables
evaluated:
firmness
(whole
fruit),
total
soluble
solids
(TSS),
acidity
(TA),
phenolics
carotenoids
(in
pulp),
while
phenolics,
carotenoids,
macronutrients
micronutrients
determined
peel.
results
showed
MeSa
advanced
maturation,
according
higher
TSS,
lower
TA
than
MeJa-treated
fruits,
for
which
delayed
ripening
process
shown.
All
treatments
induced
polyphenolic
concentration
during
storage.
Regarding
alternative
use
peel
as
by-product,
application
significantly
increased
content
polyphenols,
peel,
especially
MeSa,
be
used
bioactive
compound
food
industry.
In
conclusion,
indicate
an
improve
shelf
life
