Plants,
Journal Year:
2024,
Volume and Issue:
13(17), P. 2361 - 2361
Published: Aug. 24, 2024
The
impact
of
trace
metal
elements
(TMEs)
on
plants
is
one
current
pollution
problem,
the
severity
which
increasing
with
industrial
development,
population
growth
and
inappropriate
agricultural
practices.
latter
can
have
irreversible
effects
ecosystems,
including
species
extinction,
trophic
chain
contamination
altered
human
health,
particularly
in
case
consumed
such
as
zucchini
squash
(Cucurbita
pepo
L.).
This
study
aims
to
investigate
nickel
various
physiological
biochemical
parameters
growth,
a
particular
focus
how
this
toxic
impacts
quality
fruit
that
by
humans.
To
achieve
this,
aged
45
days
were
grown
for
month
solid
media
loaded
different
concentrations
Ni
(0,
100,
300
500
µM).
results
showed
exposure
resulted
significantly
higher
accumulation
shoots
(1314
µg·g−1
DW)
than
roots
fruits.
Concerning
non-enzymatic
antioxidants,
toxicity
increased
total
polyphenols,
especially
at
µM
Ni,
while
flavonoid
content
decreased
response
treatment.
Our
also
show
tolerance
C.
ensured
combination
several
mechanisms
an
increase
proline.
survive
tolerate,
degrees,
cations
up
but
visible
symptoms
chlorosis
leaves.
Indeed,
based
thresholds
hyperaccumulation,
we
qualify
Cucurbita
hyperaccumulator
nickel.
The Plant Cell,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 15, 2024
Abstract
Hydrotropism
facilitates
the
orientation
of
plant
roots
toward
regions
elevated
water
potential,
enabling
them
to
absorb
adequate
water.
Although
calcium
signaling
plays
a
crucial
role
in
response
tracking,
exact
regulatory
mechanisms
remain
mystery.
Here,
we
employed
Arabidopsis
(Arabidopsis
thaliana)
hydrotropism-specific
protein
MIZU-KUSSEI1
(MIZ1)
as
bait
and
found
that
calcium-dependent
kinases
4/5/6/11
(CPK4/5/6/11)
interacted
with
MIZ1
vitro
vivo.
The
cpk4/5/6/11
mutant
exhibited
increased
sensitivity
potential
enhanced
root
tip
curvature.
Furthermore,
CPK4/5/6/11
primarily
phosphorylated
at
Ser14/36
residues.
Additionally,
CPK-mediated
phosphorylation
relieved
its
inhibitory
effect
on
activity
endoplasmic
reticulum–localized
Ca2+
pump
ECA1,
altering
balance
between
cytoplasmic
inflow
outflow,
thereby
negatively
regulating
hydrotropic
growth
plants.
Overall,
our
findings
unveil
molecular
by
which
CPK4/5/6/11-MIZ1
module
functions
hydrotropism
responses
provide
theoretical
foundation
for
enhancing
use
efficiency
promoting
sustainable
agriculture.
Journal of Food Composition and Analysis,
Journal Year:
2024,
Volume and Issue:
135, P. 106648 - 106648
Published: Aug. 22, 2024
Selenium
is
an
essential
element
for
the
well-being
of
humans
and
animals.
Micronutrient
deficiencies
affect
over
half
global
population.
Biofortification
crops
with
selenium
represents
economically
sustainable
solution
to
combat
this
problem.
In
study,
seven
Allium
species
underwent
Se
biofortification,
via
soil
enrichment
selenate
in
pots,
at
three
distinct
concentration
levels
were
used
explore
relationship
between
plant
internalization,
polyphenol
composition,
mineral
content.
chosen
because
they
are
recognized
as
secondary
accumulators
Se.
Plant
morphology,
well
presence
fifteen
phenolic
acids
flavonoids,
analysed
using
a
UHPLC-DAD
system.
Mineral
content
was
determined
both
ICP-OES
FAES.
quantified
validated
method
based
on
HG-HR-CS-QT-AAS.
Even
lowest
biofortification
level,
demonstrated
potential
sources
dietary
Se,
offering
viable
alternatives
supplements,
without
negatively
impacting
main
Higher
led
reduced
flavonoids
acids,
accompanied
by
decreases
biomass
certain
species.
The
study
highlighted
how
affects
key
polyphenols
like
quercetin,
gallic
acid,
luteolin,
although
response
varied
among
Plants,
Journal Year:
2024,
Volume and Issue:
13(17), P. 2361 - 2361
Published: Aug. 24, 2024
The
impact
of
trace
metal
elements
(TMEs)
on
plants
is
one
current
pollution
problem,
the
severity
which
increasing
with
industrial
development,
population
growth
and
inappropriate
agricultural
practices.
latter
can
have
irreversible
effects
ecosystems,
including
species
extinction,
trophic
chain
contamination
altered
human
health,
particularly
in
case
consumed
such
as
zucchini
squash
(Cucurbita
pepo
L.).
This
study
aims
to
investigate
nickel
various
physiological
biochemical
parameters
growth,
a
particular
focus
how
this
toxic
impacts
quality
fruit
that
by
humans.
To
achieve
this,
aged
45
days
were
grown
for
month
solid
media
loaded
different
concentrations
Ni
(0,
100,
300
500
µM).
results
showed
exposure
resulted
significantly
higher
accumulation
shoots
(1314
µg·g−1
DW)
than
roots
fruits.
Concerning
non-enzymatic
antioxidants,
toxicity
increased
total
polyphenols,
especially
at
µM
Ni,
while
flavonoid
content
decreased
response
treatment.
Our
also
show
tolerance
C.
ensured
combination
several
mechanisms
an
increase
proline.
survive
tolerate,
degrees,
cations
up
but
visible
symptoms
chlorosis
leaves.
Indeed,
based
thresholds
hyperaccumulation,
we
qualify
Cucurbita
hyperaccumulator
nickel.
