Microorganisms,
Journal Year:
2024,
Volume and Issue:
12(8), P. 1694 - 1694
Published: Aug. 16, 2024
Rice
sheath
blight
is
a
serious
disease
caused
by
Rhizoctonia
solani
that
reduces
rice
yield.
Currently,
there
lack
of
efficient
and
environmentally
friendly
control
methods.
In
this
study,
we
found
Bacillus
velezensis
(B.
velezensis)
Y6
could
significantly
inhibit
the
growth
mycelium
in
solani,
its
efficiency
against
was
58.67%
(p
<
0.01)
pot
experiment.
Lipopeptides
play
an
important
role
B.
Y6,
among
which
iturin
fengycin
are
essential,
W,
novel
lipopeptide
velezensis,
plays
major
antagonism
to
solani.
field,
also
inoculation
with
can
increase
yield
(dry
weight)
11.75%.
Furthermore,
transcriptome
profiling
results
roots
revealed
were
total
1227
differential
genes
(DEGs)
regulated
when
treated
468
up-regulated
971
down-regulated
compared
control.
Among
them,
DEGs
mainly
distributed
biological
processes
(BP)
enriched
response
stimulus
(GO:0050896),
stress
(GO:0006950),
abiotic
(GO:0009628).
According
KEGG
pathway
analysis,
338
classified
into
87
functional
categories.
Compared
control,
large
number
phenylpropanoid
biosynthesis
(map00940),
glutathione
metabolism
(map00480),
glycolysis/gluconeogenesis
(map00010),
amino
sugar
nucleotide
(map00520).
summary,
investigation
provides
new
perspective
for
studying
molecular
mechanism
controlling
blight.
Microbiology Research,
Journal Year:
2025,
Volume and Issue:
16(2), P. 35 - 35
Published: Jan. 31, 2025
The
lettuce
drop
or
white
mold
is
an
economically
important
disease
as
the
causal
fungus
Sclerotinia
sclerotiorum
can
infect
at
any
stage
of
plant
development.
Polyphagous
nature
S.
sclerotiorum,
longevity
soil-borne
sclerotia
and
air-borne
ascospores
makes
control
difficult.
Chemical
fungicides
are
available
only
for
foliar
application
against
infections
by
so,
development
bio-control
great
importance.
We
tested
antagonism
native
isolate
T.
koningiopsis
agg.
(Hypocreales)
(STP8)
under
laboratory
greenhouse
environments.
In
vitro
tests
showed
excellent
STP8
antagonisms
to
evidencing
hyperparasitic
activity
on
mycelia
well
antibiosis.
were
completely
degraded
after
two
months.
greenhouse,
infection
with
was
reduced
treating
seedlings
spore
suspension.
Uninfected
plants
treated
best
quality
based
morphological
parameters,
confirming
ability
promote
growth.
Even
infected
healthier
in
better
condition
than
lettuce,
suggesting
that
also
enhancing
defense
system.
Phytopathology,
Journal Year:
2024,
Volume and Issue:
114(7), P. 1447 - 1457
Published: April 26, 2024
Sclerotinia
sclerotiorum
is
an
economically
damaging
fungal
pathogen
that
causes
stem
rot
in
legumes,
producing
enormous
yield
losses.
This
difficult
to
control
due
its
wide
host
spectrum
and
ability
produce
sclerotia,
which
are
resistant
bodies
can
remain
active
for
long
periods
under
harsh
environmental
conditions.
Here,
the
biocontrol
methods
management
of
S.
legumes
reviewed.
Bacillus
strains,
synthesized
lipopeptides
volatile
organic
compounds,
showed
high
efficacies
soybean
plants,
whereas
highest
alfalfa
common
bean
were
observed
when
using
Coniothyrium
minitans
Streptomyces
spp.,
respectively.
The
fields
65%,
highlighting
lack
strategies
achieve
a
complete
control.
Overall,
although
most
studies
involved
extensive
screenings
different
agent
concentrations
application
conditions,
there
knowledge
regarding
specific
antifungal
mechanisms,
limits
optimization
reported
methods.
