Applied Microbiology and Biotechnology,
Год журнала:
2024,
Номер
108(1)
Опубликована: Май 8, 2024
Abstract
Actinomycetota
have
been
widely
described
as
valuable
sources
for
the
acquisition
of
secondary
metabolites.
Most
microbial
metabolites
are
produced
via
metabolic
pathways
encoded
by
biosynthetic
gene
clusters
(BGCs).
Although
many
not
essential
survival
bacteria,
they
play
an
important
role
in
their
adaptation
and
interactions
within
communities.
This
is
how
bacteria
isolated
from
extreme
environments
such
Antarctica
could
facilitate
discovery
new
BGCs
with
biotechnological
potential.
study
aimed
to
isolate
rare
strains
Antarctic
soil
sediment
samples
identify
potential
based
on
genome
mining
exploration
clusters.
To
this
end,
were
sequenced
using
Illumina
Oxford
Nanopore
Technologies
platforms.
The
assemblies
annotated
subjected
phylogenetic
analysis.
Finally,
present
each
identified
antiSMASH
tool,
diversity
Micrococcaceae
family
was
evaluated.
Taxonomic
annotation
revealed
that
seven
two
previously
reported
NCBI
database.
Additionally,
encoding
type
III
polyketide
synthases
(T3PKS),
beta-lactones,
siderophores,
non-ribosomal
peptide
synthetases
(NRPS)
identified,
among
others.
In
addition,
sequence
similarity
network
showed
a
predominant
,
some
genera
distinctly
grouped.
be
associated
applications
antimicrobials,
anticancer
agents,
plant
growth
promoters,
others,
positioning
them
excellent
candidates
future
innovations.
Key
points
•
Novel
sediments
Genome-based
taxonomic
affiliation
potentially
novel
species
Genome
natural
products
Nature Communications,
Год журнала:
2022,
Номер
13(1)
Опубликована: Фев. 23, 2022
Understanding
the
driving
forces
and
intrinsic
mechanisms
of
microbial
competition
is
a
fundamental
question
in
ecology.
Despite
well-established
negative
correlation
between
exploitation
phylogenetic
distance,
process
interference
that
exemplified
by
antagonism
remains
controversial.
Here,
we
studied
genus
Bacillus,
commonly
recognized
producer
multifarious
antibiotics,
to
explore
role
patterns
biosynthetic
gene
clusters
(BGCs)
mediating
relationship
phylogeny.
Comparative
genomic
analysis
revealed
positive
association
BGC
distance
distance.
Antagonistic
tests
demonstrated
inhibition
phenotype
positively
correlated
with
both
predicted
especially
for
antagonistic
strains
possessing
abundant
BGCs.
Mutant-based
verification
showed
was
dependent
on
BGCs
specifically
harbored
strain.
These
findings
highlight
BGC-phylogeny
coherence
regulates
congeneric
which
deepens
our
understanding
force
mechanism
interactions.
Heliyon,
Год журнала:
2024,
Номер
10(11), С. e31573 - e31573
Опубликована: Май 23, 2024
Endophytic
bacteria,
living
inside
plants,
are
competent
plant
colonizers,
capable
of
enhancing
immune
responses
in
plants
and
establishing
a
mutual
relationship
with
them.
bacteria
have
been
described
as
being
used
to
control
phytopathogenic
fungi
while
exhibiting
growth-promoting
activity.
Here,
we
discussed
the
mechanisms
actions
discovered
some
major
groups
beneficial
endophytic
such
Bacillus,
Paenibacillus,
Pseudomonas.
Most
studied
strains
these
genera
were
isolated
from
rhizosphere
soils,
more
extensive
study
is
needed.
It
essential
understand
underlying
biocontrol
develop
an
effective
screening
approach
for
selecting
potential
bacteria.
We
suggested
strategy
based
on
mechanistic
phenomena.
This
review
will
help
screen
sustainable
agriculture.
Microbial Cell Factories,
Год журнала:
2024,
Номер
23(1)
Опубликована: Апрель 2, 2024
Abstract
Surfactin
is
a
cyclic
hexalipopeptide
compound,
nonribosomal
synthesized
by
representatives
of
the
Bacillus
subtilis
species
complex
which
includes
B.
group
and
its
closely
related
species,
such
as
subsp
subtilis,
spizizenii,
inaquosorum
,
atrophaeus,
amyloliquefaciens,
velezensis
(Steinke
mSystems
6:
e00057,
2021)
It
functions
biosurfactant
signaling
molecule
has
antibacterial,
antiviral,
antitumor,
plant
disease
resistance
properties.
The
lipopeptides
play
an
important
role
in
agriculture,
oil
recovery,
cosmetics,
food
processing
pharmaceuticals,
but
natural
yield
surfactin
low.
This
paper
reviews
regulatory
pathways
mechanisms
that
affect
synthesis
release,
highlighting
genes
involved
transcription
srfAA-AD
operon.
several
ways
to
enhance
production,
governing
expression
regulation
transport,
removal
competitive
pathways,
optimization
media,
fermentation
conditions
were
commented.
review
will
provide
theoretical
platform
for
systematic
genetic
modification
high-yielding
strains
surfactin.
Graphical
Background
Streptomyces
is
a
highly
diverse
genus
known
for
the
production
of
secondary
or
specialized
metabolites
with
wide
range
applications
in
medical
and
agricultural
industries.
Several
thousand
complete
nearly
genome
sequences
are
now
available,
affording
opportunity
to
deeply
investigate
biosynthetic
potential
within
these
organisms
advance
natural
product
discovery
initiatives.
Results
We
perform
pangenome
analysis
on
2371
genomes,
including
approximately
1200
assemblies.
Employing
data-driven
approach
based
similarities,
was
classified
into
7
primary
42
Mash-clusters,
forming
basis
comprehensive
mining.
A
refined
workflow
grouping
gene
clusters
(BGCs)
redefines
their
diversity
across
different
Mash-clusters.
This
also
reassigns
2729
BGC
families
only
440
families,
reduction
caused
by
inaccuracies
boundary
detections.
When
genomic
location
BGCs
included
analysis,
conserved
structure,
synteny,
among
becomes
apparent
species
synteny
suggests
that
vertical
inheritance
major
factor
diversification
BGCs.
Conclusions
Our
dataset
at
scale
thousands
genomes
refines
predictions
using
Mash-clusters
as
analysis.
The
observed
conservation
order
BGCs’
locations
shows
vertically
inherited.
presented
in-depth
pave
way
large-scale
investigations
enhance
our
understanding
genus.
The ISME Journal,
Год журнала:
2022,
Номер
17(2), С. 263 - 275
Опубликована: Ноя. 10, 2022
Bacillus
velezensis
is
considered
as
model
species
for
plant-associated
bacilli
providing
benefits
to
its
host
such
protection
against
phytopathogens.
This
mainly
due
the
potential
secrete
a
wide
range
of
secondary
metabolites
with
specific
and
complementary
bioactivities.
metabolite
arsenal
has
been
quite
well
defined
genetically
chemically
but
much
remains
be
explored
regarding
how
it
expressed
under
natural
conditions
notably
can
modulated
upon
interspecies
interactions
in
competitive
rhizosphere
niche.
Here,
we
show
that
B.
mobilize
substantial
part
metabolome
perception
Pseudomonas,
soil-dwelling
competitor.
response
reflects
multimodal
defensive
strategy
includes
polyketides
bacteriocin
amylocyclicin,
broad
antibiotic
activity,
surfactin
lipopeptides,
contributing
biofilm
formation
enhanced
motility.
Furthermore,
identified
Pseudomonas
siderophore
pyochelin
an
info-chemical,
which
triggers
this
via
mechanism
independent
iron
stress.
We
hypothesize
relies
on
chelator
sensing
accurately
identify
competitors,
illustrating
new
facet
siderophore-mediated
beyond
concept
competition
piracy.
phenomenon
may
thus
represent
component
microbial
conversations
driving
behavior
members
community.
Bacterial
secondary
metabolites,
synthesized
by
enzymes
encoded
in
biosynthetic
gene
clusters
(BGCs),
can
underlie
microbiome
homeostasis
and
serve
as
commercialized
products,
which
have
historically
been
mined
from
a
select
group
of
taxa.
While
evolutionary
approaches
proven
beneficial
for
prioritizing
BGCs
experimental
characterization
efforts
to
uncover
new
natural
dedicated
bioinformatics
tools
designed
comparative
analysis
within
focal
taxa
are
limited.
We
thus
developed
l
ineage
s
pecific
nalysis
(
lsa
BGC;
https://github.com/Kalan-Lab/lsaBGC
)
aid
exploration
microdiversity
trends
across
homologous
groupings
BGCs,
cluster
families
(GCFs),
any
bacterial
interest.
BGC
enables
rapid
direct
identification
GCFs
genomes,
calculates
statistics
conservation
genes,
builds
framework
allow
base
resolution
mining
novel
variants
through
metagenomic
exploration.
Through
application
the
suite
four
genera
commonly
found
skin
microbiomes,
we
insights
into
evolution
diversity
their
BGCs.
show
that
virulence-associated
carotenoid
staphyloxanthin
Staphylococcus
aureus
is
ubiquitous
genus
.
one
GCF
encoding
biosynthesis
showcases
evidence
plasmid-mediated
horizontal
transfer
(HGT)
between
species,
another
appears
be
transmitted
vertically
amongst
sub-clade
skin-associated
Further,
latter
GCF,
well
conserved
S.
,
has
lost
most
epidermidis
common
species
on
human
also
regarded
commensal.
identify
thousands
single-nucleotide
(SNVs)
Corynebacterium
tuberculostearicum
sp.
complex,
narrow,
multi-species
clade
features
prevalent
healthy
microbiomes.
Although
SNVs
were
approximately
10
times
likely
correspond
synonymous
changes
when
located
top
five
percentile
sites,
identified
defied
this
trend
predicted
amino
acid
functionally
key
enzymatic
domains.
Ultimately,
beyond
supporting
investigations
provides
important
functionalities
discovery
or
directed
modification
products.
Nucleic Acids Research,
Год журнала:
2024,
Номер
52(10), С. 5478 - 5495
Опубликована: Апрель 30, 2024
Abstract
Genome
mining
is
revolutionizing
natural
products
discovery
efforts.
The
rapid
increase
in
available
genomes
demands
comprehensive
computational
platforms
to
effectively
extract
biosynthetic
knowledge
encoded
across
bacterial
pangenomes.
Here,
we
present
BGCFlow,
a
novel
systematic
workflow
integrating
analytics
for
large-scale
genome
of
BGCFlow
incorporates
several
and
tools
grouped
into
five
common
stages
analysis
such
as:
(i)
data
selection,
(ii)
functional
annotation,
(iii)
phylogenetic
analysis,
(iv)
mining,
(v)
comparative
analysis.
Furthermore,
provides
easy
configuration
different
projects,
parallel
distribution,
scheduled
job
monitoring,
an
interactive
database
visualize
tables,
exploratory
Jupyter
Notebooks,
customized
reports.
demonstrate
the
application
by
investigating
distribution
various
gene
clusters
detected
42
Saccharopolyspora
genus,
known
produce
industrially
important
secondary/specialized
metabolites.
BGCFlow-guided
predicted
more
accurate
dereplication
BGCs
guided
targeted
selected
RiPPs.
scalable,
interoperable,
adaptable,
re-entrant,
reproducible
nature
will
provide
effective
way
from
ever-growing
genomic
datasets
biotechnologically
relevant
species.