bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2021,
Volume and Issue:
unknown
Published: Sept. 30, 2021
Abstract
The
intestines
of
animals
are
typically
colonized
by
a
complex,
relatively
stable
microbiota
that
influences
health
and
fitness,
but
the
underlying
mechanisms
colonization
remain
poorly
understood.
As
typical
animal,
fruit
fly,
Drosophila
melanogaster,
is
associated
with
consistent
set
commensal
bacterial
species,
yet
reason
for
this
consistency
unknown.
Here,
we
use
gnotobiotic
flies,
microscopy,
microbial
pulse-chase
protocols
to
show
niche
exists
within
proventriculus
region
foregut
selectively
binds
bacteria
exquisite
strain-level
specificity.
Primary
colonizers
saturate
exclude
secondary
same
strain,
initial
Lactobacillus
physically
remodels
favor
Acetobacter
.
Our
results
provide
mechanistic
framework
understanding
establishment
stability
an
intestinal
microbiome.
One-Sentence
Summary
A
strain-specific
inhabits
defined
spatial
gut
forms
niche.
mSystems,
Journal Year:
2022,
Volume and Issue:
7(2)
Published: March 30, 2022
Endosymbionts
can
profoundly
affect
the
nutrition,
immunity,
development,
and
reproduction
of
insect
hosts,
but
effects
multiple
endosymbiont
infections
on
microbiota
interaction
these
with
host
fitness
are
not
well
known.
By
establishing
S.
furcifera
lines
different
infection
status,
we
found
that
Cardinium
combined
+
Wolbachia
differentially
reduced
bacterial
diversity
as
changing
community
structure
affecting
metabolism,
which
may
connect
to
negative
endosymbionts
their
host.
mSystems,
Journal Year:
2023,
Volume and Issue:
8(2)
Published: Feb. 21, 2023
The
dynamic
structures
of
microbial
communities
emerge
from
the
complex
network
interactions
between
their
constituent
microorganisms.
Quantitative
measurements
these
are
important
for
understanding
and
engineering
ecosystem
structure.
Here,
we
present
development
application
BioMe
plate,
a
redesigned
microplate
device
in
which
pairs
wells
separated
by
porous
membranes.
facilitates
measurement
integrates
easily
with
standard
laboratory
equipment.
We
first
applied
to
recapitulate
recently
characterized,
natural
symbiotic
bacteria
isolated
Drosophila
melanogaster
gut
microbiome.
Specifically,
plate
allowed
us
observe
benefit
provided
two
Evolutionary Ecology,
Journal Year:
2020,
Volume and Issue:
34(5), P. 659 - 680
Published: Sept. 2, 2020
Abstract
Population
density
modulates
a
wide
range
of
eco-evolutionary
processes
including
inter-
and
intra-specific
competition,
fitness
population
dynamics.
In
holometabolous
insects,
the
larval
stage
is
particularly
susceptible
to
density-dependent
effects
because
larva
resource-acquiring
stage.
Larval
can
modulate
expression
life-history
traits
not
only
in
adult
stages
but
also
downstream
for
dynamics
evolution.
Better
understanding
scope
generality
on
current
future
generations
provide
useful
knowledge
both
theory
experiments
developmental
ecology.
Here,
we
review
literature
non-social
insects.
First,
functional
definition
navigate
terminology
literature.
We
then
classify
biological
levels
upon
which
be
observed
followed
by
produced
over
past
decades
across
major
groups.
Next,
argue
that
host-microbe
interactions
are
yet
an
overlooked
level
propose
conceptual
model
explain
how
curves.
summary,
this
provides
integrative
framework
used
guide
research
field
ecology
Molecular Ecology,
Journal Year:
2021,
Volume and Issue:
31(5), P. 1444 - 1460
Published: Dec. 14, 2021
Abstract
In
animals
with
distinct
life
stages
such
as
holometabolous
insects,
adult
phenotypic
variation
is
often
shaped
by
the
environment
of
immature
stages,
including
their
interactions
microbes
colonizing
larval
habitats.
Such
carry‐over
effects
were
previously
observed
for
several
traits
mosquito
Aedes
aegypti
after
exposure
to
different
bacteria,
but
mechanistic
underpinnings
are
unknown.
Here,
we
investigated
molecular
changes
triggered
gnotobiotic
bacteria
in
Ae
.
We
initially
screened
a
panel
16
bacterial
isolates
from
natural
breeding
sites
determine
ability
influence
life‐history
traits.
subsequently
focused
on
four
(belonging
Flavobacterium
,
Lysobacter
Paenibacillus
and
Enterobacteriaceae)
significant
survival
found
that
they
associated
transcriptomic
profiles
throughout
development.
Moreover,
detected
at
level
gene
expression
isolates.
The
most
prominent
larvae
reflected
profound
remodelling
lipid
metabolism,
which
translated
into
differences
storage
starvation
resistance
stage.
Together,
our
findings
indicate
environmental
trigger
substantial
physiological
impact
fitness,
uncovering
possible
mechanism
underlying
mosquito‐bacteria
during
Frontiers in Microbiology,
Journal Year:
2021,
Volume and Issue:
12
Published: June 8, 2021
Gut
microbes
and
diet
can
both
strongly
affect
the
biology
of
multicellular
animals,
but
it
is
often
difficult
to
disentangle
microbiota-diet
interactions
due
complex
microbial
communities
many
animals
harbor
nutritionally
variable
diets
they
consume.
While
theoretical
empirical
studies
indicate
that
greater
microbiota
diversity
beneficial
for
animal
hosts,
there
have
been
few
tests
performed
in
aquatic
invertebrates.
Most
mosquito
species
are
detritivores
during
their
juvenile
stages
microbiotas
consume
range
from
nutrient
rich
poor.
In
this
study,
we
produced
a
gnotobiotic
model
allowed
us
examine
how
between
specific
gut
fitness
Aedes
aegypti,
yellow
fever
mosquito.
Using
simplified
seven-member
community
bacteria
(ALL7)
various
laboratory
natural
diets,
larval
mosquitoes
develop
under
different
dietary
conditions
measured
resulting
time
adulthood
adult
size.
Larvae
inoculated
with
ALL7
or
more
developed
similarly
when
fed
nutrient-rich
rat
chow
fish
food
whereas
larvae
individual
bacterial
members
exhibited
differences
development
large
performance
diet.
contrast,
largely
failed
support
growth
field-collected
detritus
unless
supplemented
additional
protein
yeast.
Collectively,
our
results
contingent
on
composition.
ABSTRACT
Whole-body
health
relies
on
complex
inter-organ
signalling
networks
that
enable
organisms
to
adapt
environmental
perturbations
and
changes
in
tissue
homeostasis.
The
intestine
plays
a
major
role
as
centre
by
producing
local
systemic
signals
are
relayed
the
body
maintain
intestinal
organismal
Consequently,
disruption
of
homeostasis
associated
with
diseases
multi-organ
dysfunction.
In
recent
years,
fruit
fly
Drosophila
melanogaster
has
emerged
prime
model
organism
study
tissue-intrinsic
adult
due
its
genetic
tractability
functional
conservation
mammals.
this
Review,
we
highlight
research
contributed
our
understanding
how
interacts
microenvironment
distant
organs.
We
discuss
implications
these
findings
for
whole-body
pathophysiology,
future
studies
might
advance
knowledge
interplay
between
rest
disease.
Journal of Experimental Biology,
Journal Year:
2023,
Volume and Issue:
226(24)
Published: Dec. 14, 2023
Insects
are
the
most
diverse
animal
group
on
planet.
Their
success
is
reflected
by
diversity
of
habitats
in
which
they
live.
However,
these
have
undergone
great
changes
recent
decades;
understanding
how
affect
insect
health
and
fitness
an
important
challenge
for
conservation.
In
this
Review,
we
focus
research
that
links
nutritional
environment
with
infection
immune
status
insects.
We
first
discuss
from
field
immunology,
then
investigate
factors
such
as
intracellular
extracellular
symbionts,
sociality
transgenerational
effects
may
interact
connection
between
nutrition
immunity.
show
interactions
resistance
can
be
highly
specific
to
species
and/or
type
-
almost
certainly
due
social
life
cycles,
varied
environments
insects
Hence,
connections
cannot
easily
generalised
across
finally
suggest
other
environmental
aspects
use
agrochemicals
climatic
might
also
influence
interaction
resistance,
highlight
essential.
Insect Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Feb. 18, 2024
Abstract
Symbiotic
microorganisms
are
essential
for
the
physiological
processes
of
herbivorous
pests,
including
pear
lace
bug
Stephanitis
nashi
,
which
is
known
causing
extensive
damage
to
garden
plants
and
fruit
trees
due
its
exceptional
adaptability
diverse
host
plants.
However,
specific
functional
effects
microbiome
on
adaptation
S.
remains
unclear.
Here,
we
identified
significant
microbial
changes
in
2
different
plants,
crabapple
cherry
blossom,
characterized
by
differences
fungal
diversity
as
well
bacterial
community
structures,
with
abundant
correlations
between
bacteria
or
fungi.
Consistent
changes,
that
fed
blossom
demonstrated
decreased
metabolites
downregulated
key
metabolic
pathways,
such
arginine
mitogen‐activated
protein
kinase
signaling
pathway,
were
crucial
plant
adaptation.
Furthermore,
correlation
analysis
unveiled
numerous
differential
metabolites,
influenced
interactions
These
bacteria,
fungi,
associated
may
modify
pathways
aiding
results
provide
valuable
insights
into
alteration
function
adapted
contributing
a
better
understanding
pest
invasion
dispersal
from
perspective.