International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(3), P. 1722 - 1722
Published: Jan. 31, 2024
Diet
plays
a
crucial
role
in
shaping
the
gut
microbiota
and
overall
health
of
animals.
Traditionally,
silkworms
are
fed
fresh
mulberry
leaves,
artificial
diets
do
not
support
good
health.
The
aim
this
study
was
to
explore
relationship
between
dietary
transition
from
leaves
effects
on
physiological
changes
as
model
organism.
With
diversity
silkworm
increased,
proportion
Enterococcus
Weissella,
dominant
bacterial
species
reared
diets,
decreased,
whereas
abundance
Achromobacter
Rhodococcus
increased.
Dietary
at
different
times,
including
third
or
fifth
instar
larval
stages,
resulted
significant
differences
growth
development,
immune
resistance,
silk
production
capacity
silkworms.
These
might
have
been
associated
with
rapid
adaptation
intestinal
transition.
This
preliminarily
established
transition–gut
microbial
based
conversion
thus
providing
an
important
reference
for
future
studies
mechanisms
through
which
habitual
affect
host
physiology
microbiome.
The ISME Journal,
Journal Year:
2024,
Volume and Issue:
18(1)
Published: Jan. 1, 2024
Abstract
Gut
microbiota
are
important
in
the
adaptation
of
phytophagous
insects
to
their
plant
hosts.
However,
interaction
between
gut
microbiomes
and
pioneering
populations
invasive
during
new
hosts,
particularly
initial
phases
invasion,
has
been
less
studied.
We
studied
contribution
microbiome
host
globally
recognized
pest,
Hyphantria
cunea,
as
it
expands
its
range
into
southern
China.
The
population
H.
cunea
shows
effective
Metasequoia
glyptostroboides
exhibits
greater
larval
survival
on
than
original
population.
Genome
resequencing
revealed
no
significant
differences
functions
related
two
populations.
compatibility
M.
a
correlation
abundance
several
bacteria
genera
(Bacteroides,
Blautia,
Coprococcus)
survival.
Transplanting
from
northern
enhanced
adaptability
latter
previously
unsuitable
glyptostroboides.
This
research
provides
evidence
that
can
enhance
pests
hosts
enable
more
rapid
habitats.
This
study
revealed
that
primer
selection
substantially
influences
the
taxonomic
and
predicted
functional
composition
characterization
of
microecological
patterns,
which
was
not
alleviated
by
close-reference
clustering.
Biases
were
relatively
consistent
across
different
habitats
in
community
profiling
but
patterns.
These
biases
could
be
attributed
to
multiple
aspects,
including
taxa
specificity,
regional
hypervariability,
amplification
efficiency.
Proceedings of the National Academy of Sciences,
Journal Year:
2024,
Volume and Issue:
121(42)
Published: Oct. 11, 2024
Lepidopterans
commonly
feed
on
plant
material,
being
the
most
significant
insect
herbivores
in
nature.
Despite
resistance
to
herbivory,
such
as
producing
toxic
secondary
metabolites,
have
developed
mechanisms
encoded
their
genomes
tolerate
or
detoxify
defensive
compounds.
Recent
studies
also
highlight
role
of
gut
microbiota
mediating
detoxification
herbivores;
however,
convincing
evidence
supporting
contribution
symbionts
is
rare
Lepidoptera.
Here,
we
show
that
growth
various
lepidopteran
species
was
inhibited
by
a
mulberry-derived
metabolite,
1-deoxynojirimycin
(DNJ);
expected,
specialist
silkworm
Bombyx
mori
grew
well,
but
interestingly,
early-instar
silkworms
affected
DNJ
level,
and
several
bacterial
responded
positively
enriched
DNJ.
Among
these,
strain
isolated
from
(
Pseudomonas
fulva
ZJU1)
can
degrade
utilize
sole
energy
source,
after
inoculation
into
nonspecialists
(e.g.,
beet
armyworm
Spodoptera
exigua
),
P.
ZJU1
increased
host
significantly
promoted
growth.
We
used
genomic
transcriptomic
analyses
identify
genes
potentially
involved
degradation,
CRISPR-Cas9-mediated
mutagenesis
verified
function
ilvB
,
key
binding
protein,
metabolizing
Furthermore,
deletion
mutant,
exhibiting
normal
growth,
could
no
longer
enhance
nonspecialist
performance,
degradation
vivo.
Therefore,
our
study
demonstrated
causality
between
microbiome
chemical
defense
Lepidoptera,
facilitating
mechanistic
understanding
host–microbe
relationships
across
this
complex,
abundant
group.
Journal of Nanobiotechnology,
Journal Year:
2025,
Volume and Issue:
23(1)
Published: Jan. 23, 2025
Nano(micro)plastics
(NMPs)
and
agrochemicals
are
ubiquitous
pollutants.
The
small
size
physicochemical
properties
of
NMPs
make
them
potential
carriers
for
pollutants,
affecting
their
bioavailability
impact
on
living
organisms.
However,
little
is
known
about
interactions
in
terrestrial
ecosystems.
This
study
investigates
the
adsorption
Fenpropathrin
(FPP)
onto
two
different
sizes
polystyrene
examines
impacts
an
insect
model,
silkworm
Bombyx
mori.
We
analyzed
systemic
effects
acute
exposure
to
FPP,
individually
combined,
at
organismal,
tissue,
cellular,
gut
microbiome
levels.
Our
results
showed
that
can
adsorb
with
smaller
particles
having
higher
capacity,
leading
size-dependent
increases
bioaccumulation
toxicity
FPP.
These
led
mortality,
reduced
body
weight,
delayed
development,
decreased
cocoon
production
silkworms.
Additionally,
pollutants
caused
physical
oxidative
damage
midgut
altered
gene
expression
related
juvenile
hormone
(JH)
silk
protein
synthesis.
analysis
revealed
significant
changes
abundance
potentially
beneficial
bacteria.
Thus,
aggravated
induced
by
was
size-dependent,
(NPs)
a
greater
impact.
demonstrates
role
as
contaminants,
increasing
findings
have
implications
ecosystem
health
biodiversity.
Insects,
Journal Year:
2025,
Volume and Issue:
16(2), P. 146 - 146
Published: Feb. 1, 2025
The
phytophagous
Halyomorpha
halys
(Hemiptera:
Pentatomidae)
is
a
global
agricultural
pest
that
damages
many
crops.
Conversely,
the
predatory
Arma
chinensis
shows
promise
as
biological
control
agent
against
lepidopteran
and
coleopteran
pests.
A.
are
closely
related
species
with
different
feeding
habits,
confirmed
via
genomic
morphological
analyses.
However,
no
study
investigating
implications
of
these
differences
has
been
reported.
Herein,
16S
rRNA
sequencing
technology
was
employed
to
analyze
microbiota
diversity
function
in
tissues
(salivary
glands,
gut,
sperm,
ovaries)
H.
elucidate
from
microbial
perspective.
Additionally,
adult
male-to-female
ratio
organs
statistically
similar,
while
not.
Based
on
dominance
symbionts
two
bug
species,
we
inferred
Sodalis
involved
reproduction
digestion
chinensis,
Spiroplasma
Pantoea
play
essential
roles
digestion.
We
analyzed
data
laying
foundation
for
further
understanding
symbiosis
halys,
which
may
inform
development
strategies.