The role of host plants in driving pathogen susceptibility in insects through chemicals, immune responses and microbiota
Ehsan Sanaei,
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Jacobus C. de Roode
No information about this author
Biological reviews/Biological reviews of the Cambridge Philosophical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 7, 2025
In
this
comprehensive
exploration,
we
delve
into
the
pivotal
role
of
host
plants
in
shaping
intricate
interactions
between
herbivorous
insects
and
their
pathogens.
Recent
decades
have
seen
a
surge
studies
that
demonstrate
are
crucial
drivers
pathogens,
providing
novel
insights
direct
indirect
shape
tri-trophic
interactions.
These
built
on
wide
range
from
viruses
to
bacteria,
protozoans
fungi.
We
summarise
these
studies,
discuss
mechanisms
plant-mediated
insect
resistance
infection,
ranging
toxicity
plant
chemicals
pathogens
enhancement
anti-pathogen
immune
responses,
modulation
insect's
microbiome.
Although
provide
evidence
for
roles
all
mechanisms,
also
point
out
majority
existing
phenomenological,
describing
patterns
without
addressing
underlying
mechanisms.
To
further
our
understanding
interactions,
therefore
urge
researchers
design
enable
them
specifically
distinguish
by
which
affect
susceptibility
Language: Английский
Inside the Belly of the Beast: Exploring the Gut Bacterial Diversity of Gonipterus sp. n. 2
Microbial Ecology,
Journal Year:
2025,
Volume and Issue:
88(1)
Published: April 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.
Language: Английский
Parasitoid Calyx Fluid and Venom Affect Bacterial Communities in Their Lepidopteran Host Labial Salivary Glands
Microbial Ecology,
Journal Year:
2025,
Volume and Issue:
88(1)
Published: April 23, 2025
Language: Английский
Seasonal Changes in the Gut Microbiota of Halyomorpha halys
Microbial Ecology,
Journal Year:
2024,
Volume and Issue:
87(1)
Published: Dec. 1, 2024
The
gut
microbiome
plays
an
important
role
in
insect
evolution
and
ecology.
Bacteria
support
the
host's
nutrition
defense
therefore
play
fitness
of
host.
Halyomorpha
halys
is
one
most
invasive
pest
species
world.
Native
to
North-Eastern
Asia,
this
Pentatomid
bug
has
recently
invaded
North
America
Europe,
causing
significant
damage
agricultural
production.
Although
increasing
number
studies
investigated
biology
species,
little
known
about
composition
its
microbiota.
Like
many
other
H.
harbors
a
primary
symbiont
called
"Candidatus
Pantoea
carbekii,"
which
produces
vitamins
essential
amino
acids
for
However,
information
presence
bacteria
currently
lacking.
Therefore,
we
microbiota
individuals,
were
collected
field
across
year
using
high-throughput
16S
rRNA
gene
metabarcoding
approach.
Our
results
revealed
3309
different
ASVs
associated
with
halys,
being
abundant
symbiont,
present
almost
all
individuals.
Additionally,
individuals
harbor
Commensalibacter,
genus
acetic
acid
bacterial
symbionts.
Besides
these
two
predominant
taxa,
show
high
diversity
microorganisms
seasonal
fluctuations,
highlighting
dynamic
that
might
influence
species.
Language: Английский
Seasonal shifts in the gut microbiome of Halyomorpha halys
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 5, 2024
Abstract
The
gut
microbiome
plays
an
important
role
in
insect
evolution
and
ecology.
Bacteria
support
the
host
nutrition
defense
therefore
play
for
fitness
of
host.
Halyomorpha
halys
is
one
most
invasive
pest
species
world.
Native
to
North-Eastern
Asia,
this
Pentatomid
bug
has
recently
invaded
North
America
Europe,
causing
significant
damage
agricultural
production.
Although
increasing
number
studies
investigated
biology
species,
little
known
about
its
associated
microorganisms.
Like
many
other
H.
harbors
a
primary
symbiont
called
‘Candidatus
Pantoea
carbekii’,
that
produces
vitamins
essential
amino
acids
However,
information
presence
bacteria
currently
lacking.
Therefore,
we
individuals,
which
were
collected
field
across
year
using
high-throughput
16S
rRNA
gene
metabarcoding
approach.
Our
results
revealed
645
different
ASVs
with
halys,
Pantoea
being
abundant
symbiont,
present
almost
all
individuals.
Interestingly,
several
individuals
summer
harbor
Commensalibacter.
Besides
these
two
predominant
taxa,
show
high
diversity
microorganisms
seasonal
fluctuations,
highlighting
dynamic
might
influence
species.
Language: Английский
From Eggs to Guts: Symbiotic Association of Sodalis nezarae sp. nov. with the Southern Green Shield Bug Nezara viridula
Published: Oct. 21, 2024
Abstract
Phytophagous
insects
engage
in
symbiotic
relationships
with
bacteria
that
contribute
to
digestion,
nutrient
supplementation,
and
development
of
the
host.
The
analysis
shield
bug
microbiomes
has
been
mainly
focused
on
gut
intestinal
tract
predominantly
colonized
by
Pantoea
symbionts,
other
microbial
community
members
or
organs
have
hardly
investigated.
In
this
study,
we
reveal
Southern
green
Nezara
viridula
harbours
a
Sodalis
symbiont
several
organs,
notable
prevalence
salivary
glands,
anterior
regions
midgut.
Removing
external
egg
microbiota
via
sterilization
profoundly
impacted
insect
viability
but
did
not
disrupt
vertical
transmission
symbionts.
Based
dominance
testes,
deduce
N.
males
could
be
involved
transmission.
Genomic
analyses
comparing
species
revealed
sp.
Nvir
shares
characteristics
both
free-
living
obligate
insect-associated
spp.
also
displays
genome
instability
typical
endosymbiont
lineages,
which
suggests
ongoing
speciation
an
endosymbiont.
Together,
our
study
reveals
bugs
harbour
unrecognized
symbionts
might
paternally
transmitted.
Language: Английский
Unveiling Detoxifying Symbiosis and Dietary Influence on the Southern Green Shield Bug Microbiota
Magda A. Rogowska‐van der Molen,
No information about this author
Hristina V Savova,
No information about this author
Edelgard Janssen
No information about this author
et al.
FEMS Microbiology Ecology,
Journal Year:
2024,
Volume and Issue:
100(12)
Published: Nov. 7, 2024
Abstract
The
Southern
green
shield
bug,
Nezara
viridula,
is
an
invasive
piercing
and
sucking
pest
insect
that
feeds
on
crops
poses
a
threat
to
global
food
production.
Insects
live
in
close
relationships
with
microorganisms
providing
their
host
unique
capabilities,
such
as
resistance
toxic
plant
metabolites.
In
this
study,
we
investigated
the
detoxification
of
metabolite
3-nitropropionic
acid
(NPA)
by
core
transient
members
N.
viridula
microbial
community.
Microbial
community
showed
different
tolerance
toxin
determined
six
out
eight
strains
detoxified
NPA.
Additionally,
NPA
might
interfere
biosynthesis
transport
l-leucine.
Moreover,
our
study
explored
influence
diet
gut
composition
demonstrating
switching
single-plant
shifts
abundance
microbes.
line
this,
testing
pairwise
interactions
revealed
microbiota
support
each
other
repress
growth
microorganisms.
With
work,
provide
novel
insights
into
factors
shaping
communities
demonstrate
harbours
many
toxin-degrading
bacteria
could
its
defences.
Language: Английский