Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: April 11, 2023
Abstract
Due
to
the
photocatalytic
property
of
titanium
dioxide
(TiO
2
),
its
application
may
be
dependent
on
growing
light
environment.
In
this
study,
radish
plants
were
cultivated
under
four
intensities
(75,
150,
300,
and
600
μmol
m
−2
s
−1
photosynthetic
photon
flux
density,
PPFD),
weekly
sprayed
(three
times
in
total)
with
TiO
nanoparticles
at
different
concentrations
(0,
50,
100
L
).
Based
obtained
results,
used
two
contrasting
strategies
depending
PPFD.
first
strategy,
as
a
result
exposure
high
PPFD,
limited
their
leaf
area
send
biomass
towards
underground
parts
limit
light-absorbing
surface
area,
which
was
confirmed
by
thicker
leaves
(lower
specific
area).
further
improved
allocation
when
exposed
higher
PPFDs.
second
dissipated
absorbed
energy
into
heat
(NPQ)
protect
apparatus
from
input
due
carbohydrate
carotenoid
accumulation
PPFDs
or
concentrations.
nanoparticle
up-regulated
functionality
low,
while
down-regulated
it
The
best
use
efficiency
noted
300
spray
stimulated
75
conclusion,
promotes
plant
growth
productivity,
response
is
magnified
cultivation
intensity
becomes
limited.
Horticulturae,
Journal Year:
2024,
Volume and Issue:
10(5), P. 493 - 493
Published: May 10, 2024
Yellow
pitahaya
(Selenicereus
megalanthus
Haw.)
is
an
exotic
fruit
with
great
potential
for
exportation
in
Ecuador.
The
research
was
carried
out
the
objective
of
evaluating
growth
and
ripening
as
affected
by
four
elicitors:
salicylic
acid
(SA),
methyl
salicylate
(MeSa),
jasmonate
(MeJa),
oxalic
(OA),
all
them
at
1,
5,
10
mM
concentration,
compared
untreated
plants
(control).
For
each
elicitor,
nine
were
selected,
on
plant,
three
fruits
marked
to
follow
up
measuring
polar
equatorial
diameters.
At
harvest,
yield
(kg
plant−1
number
plant−1),
weight,
percentage
pulp
skin,
total
soluble
solids
(TSS),
titratable
acidity
(TA),
firmness
determined.
Treated
enhanced
size,
crop
yield,
weight
control
fruits,
although
results
depended
elicitor
tested
applied
doses.
highest
lowest
TSS
found
MeSa
5
MeJa-treated
fruit,
respectively,
while
TA
content
shown
SA.
Firmness
only
fruits.
Overall,
suggest
that
preharvest
use
elicitors
could
modulate
improve
quality
attributes
harvest.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Feb. 21, 2025
Cadmium
(Cd)
contamination
is
a
critical
environmental
issue,
adversely
affecting
plant
growth
and
agricultural
productivity.
While
numerous
studies
have
explored
the
role
of
various
bacteria
in
mitigating
heavy
metal
toxicity,
specific
impacts
sulfate-reducing
(
Desulfovibrio
desulfuricans,
SRB)
cyanobacterium
Spirulina
(Arthrospira
platensis,
SP),
both
individually
combination,
on
Cd-contaminated
plants
remain
underexplored.
This
study
investigates
effects
SRB
SP
lettuce
exposed
to
Cd
contamination,
aiming
enhance
our
understanding
their
potential
alleviating
toxicity
promoting
health.
Results
revealed
that
significantly
reduced
root
all
treatments
except
for
combined
application
SP.
combination
also
led
marked
decrease
leaf
content
improved
area,
particularly
under
stress.
Furthermore,
together
increased
relative
water
contaminated
soils,
alone
induced
hydrogen
peroxide
production
non-contaminated
soils.
The
co-application
boosted
catalase
superoxide
dismutase
activities,
enhancing
photosynthetic
capacity
overall
These
findings
underscore
promising
using
synergistically
mitigate
Cd-induced
challenges
cultivation,
offering
viable
strategy
improve
crop
productivity
environments.
Journal of Horticultural Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 24, 2025
Abstract
Light
quality
and
intensity
markedly
influence
stomatal
activity,
a
crucial
physiological
process
regulating
gas
exchange
water
loss
in
higher
plants.
Stomata
dynamically
open
close
response
to
environmental
signals,
facilitating
carbon
dioxide
uptake
for
photosynthesis
while
modulating
transpirational
loss.
Although
red
blue
light
are
well-established
regulators
of
function,
the
effect
green
on
this
remains
comparatively
underexplored.
In
study,
effects
multiple
wavelengths
(430
nm,
530
560
630
nm)
intensities
(50,
75,
100,
400
µmol·m
−2
·s
−1
)
responses
lettuce
(
Lactuca
sativa
basil
Ocimum
basilicum
were
systematically
evaluated.
The
results
showed
that
(530
nm
effectively
maintained
closure
at
lower
intensities,
thereby
minimizing
preserving
tissue
freshness
during
postharvest
storage.
These
findings
highlight
potential
application
optimize
handling
by
reducing
transpiration
improving
shelf
life
leafy
crops.
This
evidence
provides
foundation
targeted
management
strategies
aimed
commercial
marketability
horticultural
produce.
