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.
ACS Nano,
Год журнала:
2022,
Номер
16(4), С. 5636 - 5646
Опубликована: Апрель 1, 2022
Nanomaterials
(NMs)
have
demonstrated
enormous
potential
to
improve
agricultural
production.
Ten
mg
L–1
of
customized
manganese
ferrite
(MnFe2O4)
NMs
was
selected
as
the
optimal
dose
based
on
its
outstanding
effects
promoting
tomato
flowering
and
After
foliar
application
before
flowering,
MnFe2O4
increased
leaf
chlorophyll
content
by
20
percent,
significantly
upregulated
expressions
ferredoxin,
PsaA,
PsbA
in
leaves,
likely
serving
an
electron
donor,
leading
a
significant
increase
photosynthesis
efficiency
13.3%.
Long
distance
transport
sucrose
then
confirmed
upregulation
transporter
SUT1
SUT2
NM-treated
leaves
meristems.
The
genes
associated
with
gibberellin
biosynthesis,
including
GA20ox2,
GA20ox3,
SIGAST,
induction
gene
SFT,
were
also
upregulated.
Importantly,
time
13
days
earlier
over
control.
At
reproductive
stage,
pollen
activity
ovule
size,
fruit
number
per
plant,
single
weight,
weight
plant
50%,
30%,
75%,
respectively.
Metabolically,
glucose-6-phosphate,
phenylalanine,
rutin,
ascorbic
acid
(vitamin
C),
well
decrease
tomatine
methionine,
demonstrates
nutritional
value
fruits.
A
verified
companion
field
experiment
showed
84.1%
total
production
NM
amendment.
These
findings
provide
support
for
early
yield
improvement
nano-enabled
systems.
Molecules,
Год журнала:
2022,
Номер
27(8), С. 2577 - 2577
Опубликована: Апрель 16, 2022
The
ever-increasing
rate
of
pollution
has
attracted
considerable
interest
in
research.
Several
anthropogenic
activities
have
diminished
soil,
air,
and
water
quality
led
to
complex
chemical
pollutants.
This
review
aims
provide
a
clear
idea
about
the
latest
most
prevalent
pollutants
such
as
heavy
metals,
PAHs,
pesticides,
hydrocarbons,
pharmaceuticals—their
occurrence
various
mixtures
how
several
environmental
factors
influence
their
interaction.
mechanism
adopted
by
these
contaminants
form
leading
rise
new
class
contaminants,
thus
resulting
severe
threats
human
health
environment,
also
been
exhibited.
Additionally,
this
provides
an
in-depth
vivo,
vitro,
trending
biomarkers
used
for
risk
assessment
identifies
mixed
even
at
very
minute
concentrations.
Much
importance
given
remediation
technologies
understand
our
current
position
handling
can
be
improved.
paper
create
awareness
among
readers
ubiquitous
simple
ways
tackle
same.
Archives of Agronomy and Soil Science,
Год журнала:
2022,
Номер
69(9), С. 1579 - 1599
Опубликована: Июль 24, 2022
Nanoparticles
(NPs)
have
large
potential
to
increase
the
efficiency
of
agrochemicals,
crop
production
and
soil
health;
however,
their
mechanism
uptake
interaction
with
plant
environment
is
still
not
known
properly.
Chemical
fertilizers
that
are
used
supply
nutrients
crops
globally
detrimental
both
humans
environment.
Nanotechnology
has
a
significant
role
in
agriculture
mainly
pesticides.
The
present
review
explores
progress
on
uptake,
including
foliar
root
exposure
NPs,
various
physiological
barriers
factors
affecting
NPs
along
translocation
pathways
via
xylem
phloem.
We
also
emphasized
transformation
soil,
at
interface
inside
effects
phyllosphere
rhizosphere
processes
transformed
NPs.
reviewed
improving
growth,
yield
enhancing
stress
tolerance
higher
plants
discussed
phytotoxicity
Overall,
this
work
knowledge
plants.
perspectives
for
future
research
outlined
ensure
sustainability
agricultural
practices.
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.
