The Crop Journal,
Год журнала:
2024,
Номер
12(5), С. 1333 - 1343
Опубликована: Апрель 21, 2024
Soil
salinity
is
a
big
environmental
issue
affecting
crop
production.
Although
seed
nanopriming
has
been
widely
used
to
improve
germination
and
seedling
growth
under
salinity,
our
knowledge
about
the
underlying
mechanisms
still
insufficient.
Herein,
we
newly
synthesized
selenium-doped
carbon
dots
nanoparticles
coated
with
poly
acrylic
acid
(poly
selenium
doped
dots,
PAA@Se-CDs)
it
prime
seeds
of
rapeseeds.
The
TEM
(transmission
electron
microscope)
size
zeta
potential
PAA@Se-CDs
are
3.8
±
0.2
nm
−30
mV,
respectively.
After
8
h
priming,
were
detected
in
compartments
(seed
coat,
cotyledon,
radicle),
while
no
such
signals
NNP
(no
nanoparticle
control)
group
(SeO2
was
as
NNP).
Nanopriming
increased
rapeseeds
(20
%)
fresh
weight
(161
saline
conditions
compared
control.
significantly
enhanced
endo-β-mannanase
activities
(255
%
increase,
21.55
µmol
h−1
g−1
vs.
6.06
g−1,
at
DAS1
(DAS,
days
after
sowing)),
total
soluble
sugar
(33.63
mg
FW
(fresh
weight)
20.23
FW)
protein
contents
(1.96
µg
1.0
support
germinating
seedlings
salt
stress,
comparison
respiration
rate
ATP
content
by
76
607
%,
oxidative
damage
due
over-accumulation
reactive
oxygen
species
(ROS)
alleviated
increasing
antioxidant
enzyme
(SOD
(superoxide
dismutase),
POD
(peroxidase),
CAT
(catalase)).
Another
mechanism
behind
improving
tolerance
stage
reducing
sodium
(Na+)
accumulation
potassium
(K+)
retention,
hence
K+/Na+
ratio
conditions.
Overall,
results
not
only
showed
that
could
be
good
approach
tolerance,
but
also
add
more
nanopriming-improved
plant
early
stage.
International Journal of Molecular Sciences,
Год журнала:
2023,
Номер
24(24), С. 17612 - 17612
Опубликована: Дек. 18, 2023
Drastic
climate
changes
over
the
years
have
triggered
environmental
challenges
for
wild
plants
and
crops
due
to
fluctuating
weather
patterns
worldwide.
This
has
caused
different
types
of
stressors,
responsible
a
decrease
in
plant
life
biological
productivity,
with
consequent
food
shortages,
especially
areas
under
threat
desertification.
Nanotechnology-based
approaches
great
potential
mitigating
thus
fostering
sustainable
agriculture.
Zinc
oxide
nanoparticles
(ZnO
NPs)
demonstrated
be
biostimulants
as
well
remedies
both
biotic
stresses.
Their
administration
early
sowing
stages,
i.e.,
seed
priming,
proved
effective
improving
germination
rate,
seedling
growth
ameliorating
indicators
plants'
well-being.
Seed
nano-priming
acts
through
several
mechanisms
such
enhanced
nutrients
uptake,
improved
antioxidant
properties,
ROS
accumulation
lipid
peroxidation.
The
target
priming
by
ZnO
NPs
is
mostly
large
consumption
or
staple
food,
order
meet
increased
needs
growing
population
net
drop
global
crop
frequency,
soil
contaminations.
current
review
focuses
on
most
recent
low-cost,
low-sized
employed
nano-priming,
alleviate
abiotic
stresses,
mitigate
negative
effects
improper
storage
biostimulate
Taking
into
account
that
there
variability
among
their
chemico-physical
properties
may
play
role
determining
efficacy
all
examined
cases,
it
reported
whether
are
commercial
lab
prepared.
In
latter
preparation
conditions
described,
along
structural
morphological
characterizations.
Under
these
premises,
future
perspectives
discussed
relation
possibility
engineering.
The Crop Journal,
Год журнала:
2024,
Номер
12(5), С. 1333 - 1343
Опубликована: Апрель 21, 2024
Soil
salinity
is
a
big
environmental
issue
affecting
crop
production.
Although
seed
nanopriming
has
been
widely
used
to
improve
germination
and
seedling
growth
under
salinity,
our
knowledge
about
the
underlying
mechanisms
still
insufficient.
Herein,
we
newly
synthesized
selenium-doped
carbon
dots
nanoparticles
coated
with
poly
acrylic
acid
(poly
selenium
doped
dots,
PAA@Se-CDs)
it
prime
seeds
of
rapeseeds.
The
TEM
(transmission
electron
microscope)
size
zeta
potential
PAA@Se-CDs
are
3.8
±
0.2
nm
−30
mV,
respectively.
After
8
h
priming,
were
detected
in
compartments
(seed
coat,
cotyledon,
radicle),
while
no
such
signals
NNP
(no
nanoparticle
control)
group
(SeO2
was
as
NNP).
Nanopriming
increased
rapeseeds
(20
%)
fresh
weight
(161
saline
conditions
compared
control.
significantly
enhanced
endo-β-mannanase
activities
(255
%
increase,
21.55
µmol
h−1
g−1
vs.
6.06
g−1,
at
DAS1
(DAS,
days
after
sowing)),
total
soluble
sugar
(33.63
mg
FW
(fresh
weight)
20.23
FW)
protein
contents
(1.96
µg
1.0
support
germinating
seedlings
salt
stress,
comparison
respiration
rate
ATP
content
by
76
607
%,
oxidative
damage
due
over-accumulation
reactive
oxygen
species
(ROS)
alleviated
increasing
antioxidant
enzyme
(SOD
(superoxide
dismutase),
POD
(peroxidase),
CAT
(catalase)).
Another
mechanism
behind
improving
tolerance
stage
reducing
sodium
(Na+)
accumulation
potassium
(K+)
retention,
hence
K+/Na+
ratio
conditions.
Overall,
results
not
only
showed
that
could
be
good
approach
tolerance,
but
also
add
more
nanopriming-improved
plant
early
stage.
