Frontiers in Marine Science,
Journal Year:
2023,
Volume and Issue:
10
Published: Nov. 14, 2023
This
study
investigates
the
potential
of
natural
products
derived
from
two
mangrove
soil
bacteria,
GP521A
and
GP3R5,
in
anthracnose
management
oil
tea.
Based
on
16s
rDNA
sequencing,
GP3R5
were
identified
as
Bacillus
velezensis
Pseudoalteromonas
caenipelagi
,
respectively.
Both
bacteria
showed
strong
antagonistic
effects
towards
multiple
fungal
pathogens
dual
cultural
plates.
The
ethyl
acetate
extracts
fermentation
cultures
(FEGP5)
(FEGP3)
significantly
inhibited
mycelial
growth
both
Colletotrichum
camelliae
MC171,
C.
fructicola
CF-1
Pyricularia
oryzae
P131
at
100
200
μg/mL,
Furthermore,
FEGP5
FEGP3
conidiation,
conidial
germination
appressorial
formation
MC171
50
with
stronger
inhibitory
observed
latter.
On
detached
tea
leaves,
μg/mL
resulted
~
98.0%
97.5%
reduction
diseased
areas,
respectively,
when
applied
before
inoculation,
whereas
was
approximately
55.0%
77.6%,
curative
treatments.
In
fresh
fruits,
also
disease
development,
either
preventative
or
Moreover,
demonstrated
lower
aquatic
toxicity
than
prochloraz
same
concentrations
a
commonly
used
bioindicator,
Artemia
salina
.
conclusion,
this
demonstrates
marine
microbes
development
environmentally
compatible
biopesticides
to
control
The Plant Pathology Journal,
Journal Year:
2024,
Volume and Issue:
40(6), P. 681 - 695
Published: Nov. 29, 2024
The
application
of
synthetic
fungicides
has
resulted
in
environmental
pollution
and
adverse
effects
on
non-target
species.
To
reduce
the
use
agrochemicals,
crop
disease
management
requires
microbial
biological
control
agents.
Bacillus-related
genera
produce
secondary
metabolites
to
fungal
pathogens.
Bacillus
velezensis
GYUN-1190,
isolated
from
soil,
showed
antagonistic
activity
against
Colletotrichum
fructicola,
apple
anthracnose
pathogen.
Volatile
organic
compounds
culture
filtrate
(CF)
GYUN-1190
inhibited
C.
fructicola
growth
vitro,
by
80.9%
30.25%,
respectively.
CF
pathogen
spore
germination
more
than
cell
suspensions
at
10
8
cfu/ml.
Furthermore,
is
effective
inhibiting
mycelial
it
suppresses
fruit
bitter
rot
effectively
pyraclostrobin
planta.
was
completely
48
h
after
immersion
into
CF,
compared
with
positive
controls
suspensions.
genetic
mechanism
underlying
biocontrol
features
defined
using
its
whole-genome
sequence,
which
closely
similar
strains.
It
consisted
4,240,653
bp
45.9%
GC
content,
4,142
coding
sequences,
87
tRNA,
28
rRNA
genes.
genomic
investigation
found
14
putative
metabolite
biosynthetic
gene
clusters.
suggests
that
B.
might
be
chemical
could
address
potential
as
a
agent.
Frontiers in Marine Science,
Journal Year:
2023,
Volume and Issue:
10
Published: Nov. 14, 2023
This
study
investigates
the
potential
of
natural
products
derived
from
two
mangrove
soil
bacteria,
GP521A
and
GP3R5,
in
anthracnose
management
oil
tea.
Based
on
16s
rDNA
sequencing,
GP3R5
were
identified
as
Bacillus
velezensis
Pseudoalteromonas
caenipelagi
,
respectively.
Both
bacteria
showed
strong
antagonistic
effects
towards
multiple
fungal
pathogens
dual
cultural
plates.
The
ethyl
acetate
extracts
fermentation
cultures
(FEGP5)
(FEGP3)
significantly
inhibited
mycelial
growth
both
Colletotrichum
camelliae
MC171,
C.
fructicola
CF-1
Pyricularia
oryzae
P131
at
100
200
μg/mL,
Furthermore,
FEGP5
FEGP3
conidiation,
conidial
germination
appressorial
formation
MC171
50
with
stronger
inhibitory
observed
latter.
On
detached
tea
leaves,
μg/mL
resulted
~
98.0%
97.5%
reduction
diseased
areas,
respectively,
when
applied
before
inoculation,
whereas
was
approximately
55.0%
77.6%,
curative
treatments.
In
fresh
fruits,
also
disease
development,
either
preventative
or
Moreover,
demonstrated
lower
aquatic
toxicity
than
prochloraz
same
concentrations
a
commonly
used
bioindicator,
Artemia
salina
.
conclusion,
this
demonstrates
marine
microbes
development
environmentally
compatible
biopesticides
to
control
