Scientific Reports,
Journal Year:
2019,
Volume and Issue:
9(1)
Published: June 24, 2019
Abstract
The
gut
microbiota
of
mosquitoes
is
a
crucial
determinant
their
fitness.
As
such,
the
biology
Anopheles
arabiensis
,
major
malaria
vector
Southern
Africa,
was
investigated.
Two
laboratory
strains
An.
were
used;
SENN,
an
insecticide
susceptible
strain,
and
SENN-DDT,
resistant
strain.
supplemented
with
either
non-commensal
bacteria
or
antibiotics
via
sucrose
source
to
sterilize
gut.
fed
broad-spectrum
bactericidal
antibiotic
gentamicin,
preferentially
gram-positive
(vancomycin),
gram-negative
(streptomycin)
bacteriostatic
(erythromycin),
by
sugar
supplementation
artificially-spiked
blood-meal.
effects
on
adult
mosquito
longevity
resistance
phenotype
assessed.
Bacteria
from
midgut
both
characterised
MALDI-TOF
mass
spectroscopy.
Bactericidal
increased
in
SENN-DDT.
Bacterial
tolerance.
Antibiotic
decreased
tolerance
insecticides
deltamethrin
malathion.
Blood-supplemented
vancomycin
resistance,
while
gentamicin
streptomycin
resistance.
SENN
showed
greater
bacterial
diversity
than
dominated
Gram-negative
bacteria.
This
study
suggests
role
for
life
history,
that
microflora
play
variable
roles
mosquitoes.
Entomologia Generalis,
Journal Year:
2022,
Volume and Issue:
43(2), P. 187 - 241
Published: Oct. 26, 2022
à
la
diffusion
de
documents
scientifiques
niveau
recherche,
publiés
ou
non,
émanant
des
établissements
d'enseignement
et
recherche
français
étrangers,
laboratoires
publics
privés.
Frontiers in Microbiology,
Journal Year:
2020,
Volume and Issue:
11
Published: June 26, 2020
Insects
share
an
intimate
relationship
with
their
gut
microflora
and
this
symbiotic
association
has
developed
into
essential
evolutionary
outcome
intended
for
survival
through
extreme
environmental
conditions.
While
it
been
clearly
established
that
insects,
very
few
exceptions,
associate
several
microbes
during
life
cycle,
information
regarding
aspects
of
these
associations
is
yet
to
be
fully
unraveled.
Acquisition
bacteria
by
insects
marks
the
onset
microbial
symbiosis,
which
followed
adaptation
bacterial
species
environment
prolonged
sustenance
successful
transmission
across
generations.
Although
insect-microbiome
have
reported
each
distinctive
features,
diversifications
specializations,
still
unclear
as
what
led
diversifications.
Recent
studies
indicated
involvement
various
processes
operating
within
insect
body
govern
transition
a
free-living
microbe
obligate
or
facultative
symbiont
eventually
leading
establishment
diversification
relationships.
Data
from
studies,
summarized
in
review,
indicate
partners
i.e.
undergo
genetic,
biochemical
physiological
changes
profound
influence
on
cycle
biology.
An
interesting
insect-microbe
interaction
compliance
partner
its
eventual
genome
reduction.
Endosymbionts
possess
smaller
compared
forms,
thus
raising
question
reductive
evolution
partner?
This
review
attempts
highlight
fate
implications
both
host.
discussion
specific
would
too
voluminous
outside
scope
we
present
overview
some
recent
contribute
better
understanding
trajectory
dynamics
speculate
that,
future,
nature
could
pave
path
sustainable
environmentally
safe
way
controlling
economically
important
pests
crop
plants.
Frontiers in Physiology,
Journal Year:
2023,
Volume and Issue:
13
Published: Jan. 9, 2023
Threatening
the
global
community
is
a
wide
variety
of
potential
threats,
most
notably
invasive
pest
species.
Invasive
species
are
non-native
organisms
that
humans
have
either
accidentally
or
intentionally
spread
to
new
regions.
One
effective
and
first
lines
control
strategies
for
controlling
pests
application
insecticides.
These
toxic
chemicals
employed
get
rid
pests,
but
they
pose
great
risks
people,
animals,
plants.
Pesticides
heavily
used
in
managing
current
era.
Due
overuse
synthetic
chemicals,
numerous
already
developed
resistance.
The
resistance
development
main
reason
failure
manage
Developing
pesticide
management
techniques
necessitates
thorough
understanding
mechanisms
through
which
insects
acquire
insecticide
Insects
use
behavioral,
biochemical,
physiological,
genetic,
metabolic
methods
deal
with
can
lead
continuous
overexpression
detoxifying
enzymes.
An
overabundance
enzymes
causes
resistance,
pesticides
rendering
them
ineffective
against
pests.
A
key
factor
amplification
certain
enzymes,
specifically
esterases,
Glutathione
S-transferase,
Cytochromes
p450
monooxygenase,
hydrolyses.
Additionally,
insect
guts
offer
unique
habitats
microbial
colonization,
gut
bacteria
may
serve
their
hosts
useful
services.
Most
importantly,
detoxification
insecticides
leads
development.
complete
knowledge
could
be
very
helpful
coping
challenges
effectively
developing
Integrated
Pest
Management
particularly
at
lowering
risk
chemical
environmental
contaminants
resulting
health
issues,
it
also
ways
Journal of Experimental Biology,
Journal Year:
2021,
Volume and Issue:
224(2)
Published: Jan. 15, 2021
ABSTRACT
Insects
are
the
most
diverse
group
of
animals
and
colonize
almost
all
environments
on
our
planet.
This
diversity
is
reflected
in
structure
function
microbial
communities
inhabiting
insect
digestive
system.
As
mammals,
gut
microbiota
insects
can
have
important
symbiotic
functions,
complementing
host
nutrition,
facilitating
dietary
breakdown
or
providing
protection
against
pathogens.
There
an
increasing
number
models
that
experimentally
tractable,
mechanistic
studies
microbiota–host
interactions.
In
this
Review,
we
will
summarize
recent
findings
advanced
understanding
molecular
mechanisms
underlying
symbiosis
between
their
microbiota.
We
open
article
with
a
general
introduction
to
then
turn
towards
discussion
particular
processes
governing
colonization
environment
as
well
beneficial
roles
mediated
by
The
Review
highlights
that,
although
active
field
research
implications
for
fundamental
applied
science,
still
early
stage
mechanisms.
However,
expanding
capability
culture
microbiomes
manipulate
microbe–host
interactions
promises
new
insights
from
symbioses.
Frontiers in Microbiology,
Journal Year:
2022,
Volume and Issue:
13
Published: May 3, 2022
Insect
pests
cause
significant
agricultural
and
economic
losses
to
crops
worldwide
due
their
destructive
activities.
Pesticides
are
designed
be
poisonous
intentionally
released
into
the
environment
combat
menace
caused
by
these
noxious
pests.
To
survive,
insects
can
resist
toxic
substances
introduced
humans
in
form
of
pesticides.
According
recent
findings,
microbes
that
live
insect
as
symbionts
have
recently
been
found
protect
hosts
against
toxins.
Symbioses
formed
between
various
microbes,
a
defensive
mechanism
pathogens
Insects’
guts
provide
unique
conditions
for
microbial
colonization,
resident
bacteria
deliver
numerous
benefits
hosts.
Insects
vary
significantly
reliance
on
gut
basic
functions.
digestive
tracts
very
different
shape
chemical
properties,
which
big
impact
structure
composition
community.
microbiota
has
contribute
feeding,
parasite
pathogen
protection,
immune
response
modulation,
pesticide
breakdown.
The
current
review
will
examine
roles
detoxification
mechanisms
behind
development
resistance
better
understand
detoxifying
agriculturally
pest
insects,
we
provided
comprehensive
information
regarding
role
BMC Biology,
Journal Year:
2023,
Volume and Issue:
21(1)
Published: April 17, 2023
Abstract
Background
Neonicotinoid
insecticides
are
applied
worldwide
for
the
control
of
agricultural
insect
pests.
The
evolution
neonicotinoid
resistance
has
led
to
failure
pest
in
field.
enhanced
detoxifying
enzyme
activity
and
target
mutations
play
important
roles
insects
resistance.
Emerging
evidence
indicates
a
central
role
gut
symbiont
pesticides.
Existing
reports
suggest
that
symbiotic
microorganisms
could
mediate
pesticide
by
degrading
pesticides
Results
16S
rDNA
sequencing
results
showed
richness
diversity
community
between
imidacloprid-resistant
(IMI-R)
imidacloprid-susceptible
(IMI-S)
strains
cotton
aphid
Aphis
gossypii
no
significant
difference,
while
abundance
Sphingomonas
was
significantly
higher
IMI-R
strain.
Antibiotic
treatment
deprived
gut,
followed
an
increase
susceptibility
imidacloprid
IMI-S
strain
decreased
as
expected
after
supplementation
with
.
In
addition,
nine
field
populations,
which
were
all
infected
,
increased
different
degrees
antibiotics.
Then,
we
demonstrated
isolated
from
subsist
only
carbon
source.
metabolic
efficiency
reached
56%
HPLC
detection.
This
further
proved
A.
hydroxylation
nitroreduction.
Conclusions
Our
findings
detoxification
properties,
offer
opportunity
pests
metabolize
imidacloprid.
These
enriched
our
knowledge
mechanisms
insecticide
provided
new
symbiont-based
strategies
insecticide-resistant
high
abundance.