Environmental Science & Technology,
Год журнала:
2022,
Номер
56(10), С. 6722 - 6732
Опубликована: Апрель 25, 2022
Pesticide
nanoencapsulation
and
its
foliar
application
are
promising
approaches
for
improving
the
efficiency
of
current
pesticide
practices,
whose
losses
can
reach
99%.
Here,
we
investigated
uptake
translocation
azoxystrobin,
a
systemic
pesticide,
encapsulated
within
porous
hollow
silica
nanoparticles
(PHSNs)
mean
diameter
253
±
73
nm,
following
on
tomato
plants.
The
PHSNs
had
67%
loading
azoxystrobin
enabled
controlled
release
over
several
days.
Thus,
nanoencapsulated
was
taken
up
distributed
more
slowly
than
nonencapsulated
pesticide.
A
total
8.7
1.3
μg
quantified
in
different
plant
parts,
4
days
after
20
single
leaf
each
plant.
In
parallel,
(as
Si
particulate
SiO2)
were
characterized.
translocated
15.5
1.6
μg,
rate
patterns
from
their
load.
Notably,
throughout
plant,
although
they
much
larger
known
size-exclusion
limits
(reportedly
below
50
nm)
tissues,
which
points
to
knowledge
gaps
mechanisms
vary
significantly
nanosilica-encapsulated
formulations.
Heliyon,
Год журнала:
2024,
Номер
10(6), С. e27724 - e27724
Опубликована: Март 1, 2024
Lead
(Pb)
is
a
highly
toxic
contaminant
that
ubiquitously
present
in
the
ecosystem
and
poses
severe
environmental
issues,
including
hazards
to
soil-plant
systems.
This
review
focuses
on
uptake,
accumulation,
translocation
of
Pb
metallic
ions
their
toxicological
effects
plant
morpho-physiological
biochemical
attributes.
We
highlight
uptake
metal
controlled
by
cation
exchange
capacity,
pH,
size
soil
particles,
root
nature,
other
physio-chemical
limitations.
toxicity
obstructs
seed
germination,
root/shoot
length,
growth,
final
crop-yield.
disrupts
nutrient
through
roots,
alters
plasma
membrane
permeability,
disturbs
chloroplast
ultrastructure
triggers
changes
respiration
as
well
transpiration
activities,
creates
reactive
oxygen
species
(ROS),
activates
some
enzymatic
non-enzymatic
antioxidants.
also
impairs
photosynthesis,
water
balance
mineral
nutrients,
hormonal
status,
structure
permeability.
provides
consolidated
information
concentrating
current
studies
associated
with
Pb-induced
oxidative
stress
conditions
various
plants,
highlighting
roles
different
antioxidants
plants
mitigating
Pb-stress.
Additionally,
we
discussed
detoxification
tolerance
responses
regulating
gene
expressions,
protein,
glutathione
metabolisms
resist
phytotoxicity.
Overall,
approaches
tackle
have
been
addressed;
phytoremediation
techniques
biochar
amendments
are
economical
eco-friendly
remedies
for
improving
Pb-contaminated
soils.
Environment International,
Год журнала:
2024,
Номер
190, С. 108859 - 108859
Опубликована: Июнь 30, 2024
Metal
nanoparticles
offer
promising
prospects
in
agriculture,
enhancing
plant
growth
and
ensuring
food
security.
Silver,
gold,
copper,
zinc
possess
unique
properties
making
them
attractive
for
applications.
Understanding
molecular
interactions
between
metal
plants
is
crucial
unlocking
their
potential
to
boost
crop
productivity
sustainability.
This
review
explores
emphasizing
the
need
understand
these
interactions.
By
elucidating
mechanisms,
it
highlights
productivity,
stress
tolerance,
nutrient-use
efficiency,
contributing
sustainable
agriculture
Quantifying
benefits
risks
reveal
significant
advantages.
enhance
by
20%
on
average
reduce
disease
incidence
up
50%
when
used
as
antimicrobial
agents.
They
also
nutrient
leaching
30%
soil
carbon
sequestration
15%,
but
concerns
about
toxicity,
adverse
effects
non-target
organisms,
nanoparticle
accumulation
chain
must
be
addressed.
influence
cellular
processes
including
sensing,
signaling,
transcription,
translation,
post-translational
modifications.
act
signaling
molecules,
activate
stress-responsive
genes,
defense
improve
uptake.
The
catalytic
role
management,
control,
precision
nano-fertilizers,
nano-remediation.
A
bibliometric
analysis
offers
insights
into
current
research
landscape,
highlighting
trends,
gaps,
future
directions.
In
conclusion,
hold
revolutionizing
mitigating
environmental
stressors,
promoting
Addressing
gaps
safe
integration
agricultural
practices.
Journal of Nanobiotechnology,
Год журнала:
2024,
Номер
22(1)
Опубликована: Янв. 12, 2024
Abstract
Incorporating
green
chemistry
concepts
into
nanotechnology
is
an
important
focus
area
in
nanoscience.
The
demand
for
metal
oxide
nanoparticle
production
has
grown
recent
years.
beneficial
effects
of
using
nanoparticles
agriculture
have
already
been
established.
Here,
we
highlight
some
potential
antifungal
properties
Zizyphus
spina
leaf
extract-derived
copper
(CuO-Zs-NPs),
produced
with
a
spherical
shape
and
defined
13–30
nm
particle
size.
Three
different
dosages
CuO-Zs-NPs
were
utilized
showed
promising
efficacy
vitro
vivo
against
the
selected
fungal
strain
F.
solani
causes
tomato
root
rot
disease,
which
was
molecularly
identified
accession
number
(OP824846).
In
results
indicated
that,
all
concentrations,
significant
reduction
Fusarium
disease
occurred
between
72.0
to
88.6%
compared
80.5%
severity
infected
control.
Although
treatments
either
chemical
fungicide
(Kocide
2000)
better
incidence
(18.33%
6.67%)
values,
respectively,
than
at
conc.
50
mg/l,
however
250
mg/l
highest
(9.17
±
2.89%)
lowest
(4.17
3.80%).
On
other
hand,
varied
values
elevated
seedling
vigor
initial
stages
plant
growth
development
treatment
commercial
or
Trichoderma
Biocide.
Additionally,
introduced
development,
increase
chlorophyll
pigments
enzymatic
activity
treatments.
low
concentrations
led
rise
mature
pollen
grains
immature
ones.
data
that
unique
mechanism
,
they
subsequently
imply
might
be
useful
environmentally
friendly
controlling
agent
affects
plants.
Graphical
Environmental Science & Technology,
Год журнала:
2021,
Номер
55(15), С. 10758 - 10768
Опубликована: Июль 20, 2021
Determination
of
how
the
properties
nanocarriers
agrochemicals
affect
their
uptake
and
translocation
in
plants
would
enable
more
efficient
agent
delivery.
Here,
we
synthesized
star
polymer
poly(acrylic
acid)-block-poly(2-(methylsulfinyl)ethyl
acrylate)
(PAA-b-PMSEA)
acid)-block-poly((2-(methylsulfinyl)ethyl
acrylate)-co-(2-(methylthio)ethyl
acrylate))
(PAA-b-P(MSEA-co-MTEA))
with
well-controlled
sizes
(from
6
to
35
nm),
negative
charge
content
17%
83%
PAA),
hydrophobicity
quantified
leaf
uptake,
phloem
loading,
distribution
tomato
(Solanum
lycopersicum)
3
days
after
foliar
application
20
μL
a
1g
L–1
solution.
In
spite
property
differences,
∼30%
applied
polymers
translocated
other
plant
organs,
higher
than
conventional
(<5%).
The
differences
affected
plant.
∼6
nm
exhibited
times
transport
younger
leaves
larger
ones,
while
∼35
had
over
2
roots
smaller
suggesting
small
favor
symplastic
unloading
young
leaves,
apoplastic
roots.
For
same
sized
polymer,
(yielding
ζ
∼
−12
mV)
enhanced
roots,
whereas
(ζ
<
−26
lower
mobility.
Hydrophobicity
only
pathways,
but
not
translocation.
This
study
can
help
design
agrochemical
for
targeting
desired
which
may
decrease
use
environmental
impacts
agriculture.
ACS Nano,
Год журнала:
2022,
Номер
16(3), С. 3506 - 3521
Опубликована: Фев. 23, 2022
Genetic
engineering
of
economically
important
traits
in
plants
is
an
effective
way
to
improve
global
welfare.
However,
introducing
foreign
DNA
molecules
into
plant
genomes
create
genetically
engineered
not
only
requires
a
lengthy
testing
period
and
high
developmental
costs
but
also
well-accepted
by
the
public
due
safety
concerns
about
its
effects
on
human
animal
health
environment.
Here,
we
present
high-throughput
nucleic
acids
delivery
platform
for
using
peptide
nanocarriers
applied
leaf
surface
spraying.
The
translocation
sub-micrometer-scale
acid/peptide
complexes
upon
spraying
varied
depending
physicochemical
characteristics
peptides
was
controlled
stomata-dependent-uptake
mechanism
cells.
We
observed
efficient
cell-penetrating
(CPP)-based
foliar
Moreover,
spraying,
successfully
performed
gene
silencing
small
interfering
RNA
nuclei
via
siRNA-CPP
and,
more
importantly,
chloroplasts
our
CPP/chloroplast-targeting
peptide-mediated
system.
This
technology
enables
nontransgenic
agricultural
systems.
