This
study
comprehensively
evaluated
the
effects
of
Cd
exposure
on
passive
and
active
pathogenicity
Beauveria
bassiana
(Bb)
its
corresponding
mechanisms.
The
Bb
to
Cd-exposed
Lymantria
dispar
larvae
significantly
increased.
After
infection,
fungal
biomass
in
living
mycelium
encapsulation
index
dead
were
decreased
under
exposure.
damaged
mycelial
structure,
inhibited
growth
sporulation
quantity,
reduced
toxin
secretion
Bb.
Nutrients
content
energy
metabolism-related
genes
expression
larvae,
both
before
after
infection.
Trehalose
supplementation
alleviated
nutritional
deficiency
combined
treatment
larval
susceptibility
promoted
at
low
concentrations
but
hydrophobicity,
adhesion
spores
higher
concentrations.
Transcriptome
analysis
revealed
that
hydrophobicity
exposed
may
be
regulated
by
cell
wall/membrane/envelope
biogenesis
pathways.
Spore
germination
rate
stress
resistance
Taken
together,
heavy
metals
can
regarded
as
an
abiotic
environmental
factor
directly
affects
Fermentation,
Год журнала:
2024,
Номер
10(11), С. 587 - 587
Опубликована: Ноя. 14, 2024
Beauveria
bassiana
has
distinct
nutrient
requirements
depending
on
the
growth
stage,
with
mycelial
stage
being
particularly
nutrient-intense.
When
nutrients
are
exhausted,
B.
produces
numerous
spores
that
re-germinate
and
release
visible
hyphae
under
suitable
environmental
conditions.
This
study
aimed
to
use
low-cost
agricultural
by-products
for
developing
an
optimized
sporulation
medium.
Single-factor
experiments
revealed
potato,
wheat
bran,
had
greatest
influence
after
14
d
of
culture.
Wheat,
corncob
strongest
effect
spore
production.
Using
a
mathematical
model
Box–Behnken
design,
maximum
predicted
using
stock
medium
was
5.55
×
106/mL.
The
formula
comprised
54.82
g
77.74
101.48
wheat.
actual
produced
yield
5.52
Similarly,
15.66
106/mL
culture
50.81
wheat,
99.6
112.59
corncob,
15.69
high
consistency
between
experimental
values
indicated
our
can
accurately
determine
sporulation.
This
study
evaluated
the
effects
of
cadmium
(Cd)
exposure
on
passive
and
active
lethal
efficiency
Beauveria
bassiana
(Bb)
to
Lymantria
dispar
larvae
analyzed
corresponding
mechanism
from
mycelial
vegetative
growth,
fungal
host
nutrient
competition,
spore
performance.
The
results
showed
that
Bb
Cd-exposed
L.
was
significantly
higher
than
not
exposed
Cd.
After
infection,
biomass
in
living
mycelium
encapsulation
index
dead
were
decreased
under
Cd
exposure.
damaged
structure,
as
well
inhibited
growth
sporulation
quantity.
A
total
15
39
differentially
accumulated
mycotoxin
metabolites
identified
mycelia
treated
with
low
high
Cd,
respectively,
contents
these
mycotoxins
treatment
groups
overall
lower
those
control
group.
Nutrient
content
energy
metabolism-related
gene
expression
larvae,
both
before
after
infection.
Trehalose
supplementation
alleviated
nutritional
deficiency
combined
larval
susceptibility
Bb.
Compared
untreated
Bb,
increased
significantly,
while
less
larvae.
promoted
at
concentrations
but
hydrophobicity
adhesion
spores
concentrations.
Spore
germination
rate
stress
resistance
Taken
together,
heavy
metals
can
be
regarded
an
abiotic
environmental
factor
directly
affects
insect
pests.
This
study
comprehensively
evaluated
the
effects
of
Cd
exposure
on
passive
and
active
pathogenicity
Beauveria
bassiana
(Bb)
its
corresponding
mechanisms.
The
Bb
to
Cd-exposed
Lymantria
dispar
larvae
significantly
increased.
After
infection,
fungal
biomass
in
living
mycelium
encapsulation
index
dead
were
decreased
under
exposure.
damaged
mycelial
structure,
inhibited
growth
sporulation
quantity,
reduced
toxin
secretion
Bb.
Nutrients
content
energy
metabolism-related
genes
expression
larvae,
both
before
after
infection.
Trehalose
supplementation
alleviated
nutritional
deficiency
combined
treatment
larval
susceptibility
promoted
at
low
concentrations
but
hydrophobicity,
adhesion
spores
higher
concentrations.
Transcriptome
analysis
revealed
that
hydrophobicity
exposed
may
be
regulated
by
cell
wall/membrane/envelope
biogenesis
pathways.
Spore
germination
rate
stress
resistance
Taken
together,
heavy
metals
can
regarded
as
an
abiotic
environmental
factor
directly
affects
