bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 29, 2024
In
cybergentics,
internal
control
uses
synthetic
genetic
circuits
to
bypass
the
sensing
and
actuation
limits
of
external
control.
Currently,
embedded
controllers
are
limited
basic
controllers,
like
PID.
Here,
we
introduce
Embedded
Extremum
Seeking
Controller,
first
example
a
bio-synthetic
optimiser.
combines
an
integral
oscillator
circuit
adjust
system
parameters
achieve
desired
optimal
steady
state.
This
that
already
exist
in
biology.
The
Seeker
is
demonstrated
silico
on
Labour
Division
system,
where
controller
tunes
kinematic
parameter,
optimising
ratio
culture
subpopulations
maximise
production.
paves
way
for
precisely
direct
cellular
behaviour
without
needing
sensing.
Biotechnology Advances,
Год журнала:
2024,
Номер
74, С. 108401 - 108401
Опубликована: Июнь 27, 2024
Metabolic
burden
is
defined
by
the
influence
of
genetic
manipulation
and
environmental
perturbations
on
distribution
cellular
resources.
The
rewiring
microbial
metabolism
for
bio-based
chemical
production
often
leads
to
a
metabolic
burden,
followed
adverse
physiological
effects,
such
as
impaired
cell
growth
low
product
yields.
Alleviating
imposed
undesirable
changes
has
become
an
increasingly
attractive
approach
constructing
robust
factories.
In
this
review,
we
provide
brief
overview
engineering,
focusing
specifically
recent
developments
strategies
diminishing
while
improving
robustness
yield.
A
variety
examples
are
presented
showcase
promise
engineering
in
facilitating
design
construction
Finally,
challenges
limitations
encountered
discussed.
ABSTRACT
No
organism
is
an
island:
organisms
of
varying
taxonomic
complexity,
including
genetic
variants
a
single
species,
can
coexist
in
particular
niches,
cooperating
for
survival
while
simultaneously
competing
environmental
resources.
In
recent
years,
synthetic
biology
strategies
have
witnessed
surge
efforts
focused
on
creating
artificial
microbial
communities
to
tackle
pressing
questions
about
the
complexity
natural
systems
and
interactions
that
underpin
them.
These
engineered
ecosystems
depend
number
nature
their
members,
allowing
complex
cell
communication
designs
recreate
create
diverse
interest.
Due
its
experimental
simplicity,
budding
yeast
Saccharomyces
cerevisiae
has
been
harnessed
establish
mixture
varied
populations
with
potential
explore
ecology,
metabolic
bioprocessing,
biosensing,
pattern
formation.
Indeed,
enable
advanced
molecule
detection
dynamics
logic
operations.
Here,
we
present
concise
overview
state-of-the-art,
highlighting
examples
exploit
optogenetics
manipulate,
through
light
stimulation,
key
phenotypes
at
community
level,
unprecedented
spatial
temporal
regulation.
Hence,
envision
bright
future
where
application
optogenetic
approaches
(optoecology)
illuminates
intricate
drives
innovations
engineering
strategies.
Critical Reviews in Biotechnology,
Год журнала:
2025,
Номер
unknown, С. 1 - 19
Опубликована: Фев. 19, 2025
Bioprocess
industries
aim
to
meet
the
increasing
demand
for
product
complexity
by
designing
enhanced
cellular
and
metabolic
capabilities
host.
Monocultures,
standard
biomanufacturing
workhorses,
are
often
restricted
in
their
capability
these
demands,
solution
involves
genetic
modification
of
Synthetic
microbial
communities
a
promising
alternative
monocultures
because
they
exhibit
division
labor,
enabling
efficient
resource
utilization
pathway
modularity.
This
specialization
minimizes
burden
enhances
robustness
perturbations,
providing
competitive
advantage.
Despite
this
potential,
biotechnological
or
bioprocessing
applications
remains
limited.
The
recent
emergence
new
innovative
community
design
tools
strategies,
particularly
those
harnessing
holds
promise
change
outlook.
Understanding
interactions
governing
natural
can
be
used
identify
complementary
partners,
informing
synthetic
design.
Therefore,
we
consider
engineering
labor
as
viable
accelerate
progress
field.
review
presents
current
understanding
how
enable
information
perform
tasks
otherwise
unfeasible
individual
organisms.
We
then
evaluate
laboratory
formal
modeling
approaches
specifically
developed
to:
elucidate
physiology,
guide
experimental
design,
improve
our
complex
assisting
By
synthesizing
insights,
present
comprehensive
framework
that
advances
use
applications.
Abstract
Synthetic
biology
conceptualizes
biological
complexity
as
a
network
of
parts,
devices,
and
systems
with
predetermined
functionalities
has
had
revolutionary
impact
on
fundamental
applied
research.
With
the
unprecedented
ability
to
synthesize
transfer
any
DNA
RNA
across
organisms,
scope
synthetic
is
expanding
being
recreated
in
previously
unimaginable
ways.
The
field
matured
level
where
highly
complex
networks,
such
artificial
communities
can
be
constructed.
In
parallel,
computational
became
an
integral
part
studies,
models
aiding
unravelling
escalating
emerging
properties
phenomena.
However,
there
still
vast
untapped
potential
for
complete
integration
modelling
into
design
process,
presenting
exciting
opportunities
scientific
advancements.
Here,
we
first
highlight
most
recent
advances
computer-aided
microbial
communities.
Next,
propose
that
benefit
from
organism-free
modular
approach
places
its
emphasis
modules
organismal
function
towards
multispecies
We
argue
shift
perspective
single
organism–centred
approaches
emphasizing
functional
contributions
organisms
within
community.
By
assembling
using
mathematical
descriptions
parts
circuits,
tailor
fulfil
specific
roles
This
aligns
strategies
presents
possibilities
Graphical
Heliyon,
Год журнала:
2024,
Номер
10(14), С. e33896 - e33896
Опубликована: Июль 1, 2024
Humans
have
long
relied
on
microbial
communities
to
create
products,
produce
energy,
and
treat
waste.
The
microbiota
residing
within
our
bodies
directly
impacts
health,
while
the
soil
rhizosphere
microbiomes
influence
productivity
of
crops.
However,
complexity
diversity
make
them
challenging
study
difficult
develop
into
applications,
as
they
often
exhibit
emergence
unpredictable
higher-order
phenomena.
Synthetic
ecology
aims
at
simplifying
by
constituting
synthetic
or
semi-natural
with
reduced
that
become
easier
analyze.
This
strategy
combines
methodologies
simplify
existing
complex
systems
(top-down
approach)
build
system
from
its
constituent
components
(bottom-up
approach).
Simplified
are
studied
understand
how
interactions
among
populations
shape
behavior
community
model
predict
their
response
external
stimuli.
By
harnessing
potential
through
a
multidisciplinary
approach,
we
can
advance
knowledge
ecological
concepts
address
critical
public
agricultural,
environmental
issues
more
effectively.
Journal of Applied Microbiology,
Год журнала:
2024,
Номер
135(7)
Опубликована: Июнь 27, 2024
Abstract
Microbiomes,
the
complex
networks
of
micro-organisms
and
molecules
through
which
they
interact,
play
a
crucial
role
in
health
ecology.
Over
at
least
past
two
decades,
engineering
biology
has
made
significant
progress,
impacting
bio-based
industry,
health,
environmental
sectors;
but
only
recently
begun
to
explore
microbial
ecosystems.
The
creation
synthetic
communities
presents
opportunities
help
us
understand
dynamics
wild
ecosystems,
learn
how
manipulate
interact
with
existing
microbiomes
for
therapeutic
other
purposes,
create
entirely
new
capable
undertaking
tasks
industrial
biology.
Here,
we
describe
ecosystems
can
be
constructed
controlled,
focusing
on
available
methods
interaction
mechanisms
facilitate
regulation
community
composition
output.
While
experimental
decisions
are
dictated
by
intended
applications,
vast
number
tools
suggests
great
opportunity
researchers
develop
diverse
array
novel
ACS Synthetic Biology,
Год журнала:
2024,
Номер
13(9), С. 2684 - 2692
Опубликована: Авг. 20, 2024
Advances
in
genome
engineering
and
associated
technologies
have
reinvigorated
natural
products
research.
Here
we
highlight
the
latest
developments
field
across
discover–design–build–test–learn
cycle
of
bioengineering,
from
recent
progress
computational
tools
for
AI-supported
mining,
enzyme
pathway
engineering,
compound
identification
to
novel
host
systems
new
techniques
improving
production
levels,
place
these
trends
context
responsible
research
innovation,
emphasizing
importance
anticipatory
analysis
at
early
stages
process
development.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Окт. 16, 2024
Microorganisms
can
be
engineered
to
sustainably
produce
a
variety
of
products
including
fuels,
pharmaceuticals,
materials,
and
food.
However,
highly
strains
often
result
in
low
production
yield,
due
undesired
effects
such
as
metabolic
burden
the
toxicity
intermediates.
Drawing
inspiration
from
natural
ecosystems,
construction
synthetic
community
with
division
labor
offer
advantages
for
bioproduction.
This
approach
involves
dividing
specific
tasks
among
members,
thereby
enhancing
functionality
each
member.
In
this
study,
we
identify
six
pairs
out
fifteen
composed
auxotrophs
Yarrowia
lipolytica
that
spontaneously
form
robust
syntrophic
synergistic
communities.
We
characterize
stability
growth
dynamics
these
Furthermore,
validate
existence
interactions
between
two
yeast
species,
Y.
Saccharomyces
cerevisiae,
find
strain
combination,
Δtrp2
Δtrp4,
forming
stable
species.
Subsequently,
introduce
3-hydroxypropionic
acid
(3-HP)
biosynthesis
pathway
into
by
different
strains.
Our
results
demonstrate
improved
3-HP
both
intra-
interspecies
communities
compared
monocultures.
show
formation
communities,
their
potential
improving
bioproduction
processes.
ISME Communications,
Год журнала:
2025,
Номер
5(1)
Опубликована: Янв. 1, 2025
Abstract
Syntrophic
interaction,
driven
by
metabolite
exchange,
is
widespread
within
microbial
communities.
However,
co-inoculation
of
most
auxotrophic
microorganisms
often
fails
to
establish
a
stable
exchange
relationship.
Here,
we
engineered
two
Escherichia
coli
strains,
each
dependent
on
the
other
for
essential
amino
acid
production,
investigate
dynamics
syntrophic
relationships.
Through
invasion-from-rare
experiments,
observed
rapid
formation
consortia
stabilized
frequency-dependent
selection,
converging
2:1
ratio
lysine-to-arginine
auxotrophs.
laboratory
evolution
over
25
days
revealed
that
interactions
were
evolutionarily
unstable,
with
cocultures
collapsing
as
ΔL
cells
dominated
population.
Reduced
fitness
in
was
emergence
“selfish”
phenotype,
characterized
decreased
arginine
production
and
exploitation
lysine
produced
ΔA
cells.
Dynamic
metabolic
assays
utilization
patterns
strongly
influenced
strain.
displayed
plasticity,
adjusting
response
availability,
which
enabled
them
outcompete
In
contrast,
lacked
similar
resulting
their
negative
selection.
These
findings
demonstrate
asymmetric
responses
selfish
phenotypes
destabilize
Our
work
underscores
importance
balanced
exchanges
developing
sustainable
synthetic
offers
insights
into
evolutionary
cooperation.