Nanosilica supplementation in tomato increases oviposition on stems and caterpillar mortality in the tomato pinworm
Proceedings of the National Academy of Sciences,
Год журнала:
2025,
Номер
122(13)
Опубликована: Март 24, 2025
Silicon-induced
responses
play
a
key
role
in
plant
defense
against
herbivory,
though
the
underlying
mechanisms
remain
underexplored.
In
this
study,
we
examined
how
mesoporous
silica
nanoparticles
(MSNs)
affect
tomato
(
Solanum
lycopersicum
)
an
invasive
and
highly
destructive
lepidopteran
herbivore,
pinworm
(TPW),
Phthorimaea
absoluta
.
plants
supplemented
with
MSN,
prior
exposure
to
TPW
oviposition
shifted
subsequent
egg-laying
from
preference
for
leaves
even
distribution
between
stems
leaves.
This
shift
was
not
observed
nonsilicon-supplemented
plants.
Prolonged
triggered
pigmentation
basal
cells
of
type
I
glandular
trichomes
on
silicon-supplemented
Chemical
analysis
by
coupled
gas
chromatography-mass
spectrometry
revealed
that
pigmented
trichome
rich
soluble
sugars
(sucrose
l
-arabinose)
waxes,
dominated
saturated
hydrocarbon
tetracosane.
Bioassays
crude
extract
three-component
sugar–wax
blend
replicated
caterpillar
response
trichome,
while
individual
components
produced
variable
effects.
While
-arabinose
alone
effects
blend,
sucrose
increased
feeding
survival,
tetracosane
caused
highest
mortality.
Additionally,
these
treatments
altered
gut
microbiota
composition
influenced
frass
volatiles,
which
attracted
natural
enemies,
Nesidiocoris
tenuis
(predator)
Neochrysocharis
formosa
(parasitoid).
Our
findings
suggest
silicon
supplementation
increases
through
oviposition-induced
responses,
promotes
recruitment
enemies.
Язык: Английский
Zoophytophagous predator sex pheromone and visual cues of opposing reflectance spectra lure predator and invasive prey
Journal of Advanced Research,
Год журнала:
2024,
Номер
unknown
Опубликована: Май 1, 2024
In
sub-Saharan
Africa,
the
invasive
South
American
leafminer
Phthorimaea
absoluta
is
most
damaging
tomato
pest.
Females
of
pest
can
reproduce
both
sexually
and
through
parthenogenesis
lay
their
eggs
on
all
plant
parts.
The
mirid
predator
Nesidiocoris
tenuis,
a
biological
control
agent
for
pest,
also
when
prey
population
low.
To
date,
however,
no
study
has
developed
an
eco-friendly
solution
that
targets
its
host
in
farming
system.
develop
bio-based
management
system
based
combined
use
sexual
communication
visual
cues.
We
collected
volatiles
from
sexes
Kenyan
N.
tenuis
identified
candidate
sex
pheromone
components
by
coupled
gas
chromatography-mass
spectrometry
(GC–MS).
used
electrophysiological
assays
to
identify
antennally-active
odorants
volatiles,
followed
field
trials
with
different
pheromone-baited
colored
traps
validate
responses
prey.
Thereafter,
we
compared
reflectance
spectra
those
tissues.
Our
results
reveal
interplay
between
sensory
cues
which
predator–prey
interaction
may
favor
predator.
Antennae
detect
as
1-octanol
hexyl
hexanoate.
Unexpectedly,
our
experiments
led
discovery
lure
P.
females,
were
lured
distinctly
into
trap
whose
spectrum
mimicked
ripe
fruit
(long
wavelength),
egg-laying
site
females.
Contrastingly,
males
baited
white
(short
wavelength)
actively
searching
demonstrate
novel
assess
complex
trophic
interactions
tomatoes.
Язык: Английский
Green Lacewing Chrysoperla externa Is Attracted to Volatile Organic Compounds and Essential Oils Extracted from Eucalyptus urograndis Leaves
Plants,
Год журнала:
2024,
Номер
13(16), С. 2192 - 2192
Опубликована: Авг. 8, 2024
Plant
herbivore
interactions
have
long
been
recognized
as
a
complex
interplay
influenced
by
various
factors,
including
plant
volatile
emissions.
Understanding
the
role
of
these
volatiles
in
mediating
predator
is
crucial
for
developing
sustainable
pest
management
strategies.
This
study
investigated
olfactory
preferences
Язык: Английский