Trophic transfer of heavy metals across a food chain in a wastewater-irrigated agroecosystem
Environmental Monitoring and Assessment,
Год журнала:
2024,
Номер
196(11)
Опубликована: Окт. 21, 2024
Язык: Английский
Inside the Belly of the Beast: Exploring the Gut Bacterial Diversity of Gonipterus sp. n. 2
Microbial Ecology,
Год журнала:
2025,
Номер
88(1)
Опубликована: Апрель 12, 2025
The
Eucalyptus
snout
beetle
(Gonipterus
sp.
n.
2)
is
a
destructive
invasive
pest
of
plantations,
responsible
for
significant
defoliation
and
wood
yield
losses
globally.
Native
to
Australia,
this
has
adapted
thrive
on
diverse
hosts,
overcoming
their
chemical
defences.
However,
the
mechanisms
by
which
Gonipterus
tolerates
or
utilises
these
plant
defence
metabolites
remain
poorly
understood.
In
South
Africa,
2
poses
threat
plantations
causing
extensive
leading
substantial
reductions
in
growth
production.
This
study
investigates
relationship
between
diet,
host
species,
gut
microbiome
2.
Using
controlled
feeding
experiments,
beetles
were
reared
artificial,
semi-artificial,
natural
diets,
as
well
two
genotypes
with
distinct
secondary
metabolite
profiles.
High-throughput
16S
rDNA
sequencing
gas
chromatography-mass
spectrometry
(GC-MS)
revealed
shifts
bacterial
diversity
composition
across
diets.
Natural
diets
supported
most
microbial
communities,
while
artificial
fostered
homogenised
dominated
opportunistic
taxa
like
Serratia.
Host-specific
effects
observed
frass
microbiota,
biotransformation
monoterpenes
into
less
toxic
derivatives.
results
highlight
plasticity
enables
metabolic
adaptability
resilience
environments.
flexibility
underpins
invasiveness
Gonipterus,
emphasising
role
symbionts
Understanding
interactions
offers
novel
insights
microbiome-targeted
management
strategies,
providing
sustainable
approach
mitigate
impact
global
forestry.
Язык: Английский
Enriched Flavonoid Compounds Confer Enhanced Resistance to Fusarium‐Induced Root Rot in Oil Tea Plants
Plant Cell & Environment,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 17, 2025
ABSTRACT
Root
rot
in
Camellia
oleifera
complicates
the
development
of
targeted
control
measures
owing
to
its
complex
aetiology.
Although
breeding
resistant
varieties
C.
presents
a
promising
solution,
research
into
cultivation
strategies
and
potential
resistance
mechanisms
against
root
remains
limited.
In
this
study,
we
investigated
six
cultivars
that
exhibit
varying
levels
rot.
We
conducted
transcriptome
analysis,
measurements
soil
physicochemical
properties
an
analysis
fungal
microbiome
explore
relationship
between
Fusarium
‐induced
flavonoid
compounds
rhizosphere.
The
cultivar
CL18
demonstrated
superior
performance
concerning
incidence,
health
status
expression
genes
associated
with
biosynthesis
study.
Significant
differences
were
observed
composition
diversity
rhizosphere
communities
among
various
.
abundance
was
low,
negative
correlation
identified
content
Our
study
uncovers
role
flavonoids
rot,
thereby
offering
new
for
disease
management
cultivars.
Язык: Английский
Battle between Gut Bacteria, Immune System, and Cry1Ac Toxin in Plutella xylostella
Journal of Agricultural and Food Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 24, 2025
Research
on
Bacillus
thuringiensis
(Bt)-pest
interactions
has
prioritized
Cry
toxin
receptors,
with
limited
attention
to
gut
bacteria's
role
in
modulating
Bt
sensitivity.
This
study
identified
two
Enterobacter
strains
Plutella
xylostella
opposing
effects
Cry1Ac
susceptibility.
hormaechei
(PxG15)
degraded
protoxin
and
activated
the
proPO-AS
JNK
pathway,
which
reduced
Cry1Ac's
damage
midgut
while
limiting
invasion
of
bacteria
into
hemolymph.
Although
asburiae
(PxG1)
rapidly
proPO-AS,
pathway
was
a
much
slower
weaker
mode
when
compared
PxG15,
attenuated
repairing
efficiency
under
treatment
Cry1Ac,
leading
death
resulting
from
sepsis
quick
illustrates
intricate
interrelationships
among
pest's
bacteria,
its
immune
system,
offering
novel
insights
how
shape
pest
survival
following
exposure.
Язык: Английский
Symbiont‐mediated insect host defense against parasitism: insights from the endosymbiont, Hamiltonella defensa and the insect host, Myzus persicae
Pest Management Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 23, 2025
Abstract
BACKGROUND
Sap‐feeding
insects
like
aphids
can
harbor
a
complex
of
bacterial
symbionts,
including
primary
nutritional
symbiont
and
secondary
symbionts
that
may
influence
various
traits
such
as
resistance
to
parasitoids
entomopathogens
well
fitness.
This
study
explores
the
presence
impact
facultative
symbiont,
Hamiltonella
defensa
,
in
major
pest
aphid,
green
peach
aphid
Myzus
persicae
focusing
particularly
on
its
role
parasitoid
resistance,
an
area
has
not
been
previously
characterized.
RESULTS
We
detected
Buchnera
aphidicola
H.
endosymbionts
population
M.
collected
from
Tehran,
Iran.
Using
antibiotic
treatments,
we
mostly
removed
generated
line
with
only
low
level
symbiont.
The
parasitism
rate
Aphidius
matricariae
significantly
increased
this
compared
untreated
controls.
Quantitative
polymerase
chain
reaction
(qPCR)
analysis
indicated
densities
B.
were
affected
following
parasitism.
Twenty‐four
hours
after
parasitism,
density
phage
(APSE,
Acyrthosiphon
pisum
endosymbiont)
controls,
while
decreased.
Reverse
transcription
PCR
(RT‐qPCR)
APSE
encoding
toxins
revealed
high
levels
YDp
toxin
at
24
h
post‐parasitism.
CONCLUSION
These
findings
indicate
APSE‐3
bacteriophage
is
present
likely
confers
through
toxin.
Overall,
these
results
suggest
partly
protect
against
have
implications
for
biological
control
programs
targeting
insect
pest.
©
2025
Society
Chemical
Industry.
Язык: Английский
Compatibility of entomopathogenic fungi and imidacloprid (Confidor®) on biological characteristics and life table of Diaeretiella rapae (Hymenoptera: Braconidae), a parasitoid of Brevicoryne brassicae (Hemiptera: Aphididae)
International Journal of Tropical Insect Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 14, 2024
Язык: Английский