Yeast,
Год журнала:
2021,
Номер
38(6), С. 339 - 351
Опубликована: Май 12, 2021
Abstract
Much
like
other
living
organisms,
yeast
cells
have
a
limited
life
span,
in
terms
of
both
the
maximal
length
time
cell
can
stay
alive
(chronological
span)
and
number
divisions
it
undergo
(replicative
span).
Over
past
years,
intensive
research
revealed
that
span
depends
on
genetic
background
environmental
factors.
Specifically,
presence
stress
factors,
reactive
oxygen
species,
availability
nutrients
profoundly
impact
signaling
cascades
involved
response
to
these
including
target
rapamycin
(TOR)
cyclic
adenosine
monophosphate
(cAMP)/protein
kinase
A
(PKA)
pathways,
play
central
role.
Interestingly,
also
has
direct
implications
for
its
use
industrial
processes.
In
beer
brewing,
example,
inoculation
finished
with
live
cells,
process
called
“bottle
conditioning”
helps
improve
product's
shelf
by
clearing
undesirable
carbonyl
compounds
such
as
furfural
2‐methylpropanal
cause
staling.
However,
this
effect
reductive
metabolism
is
thus
inherently
cells'
chronological
span.
Here,
we
review
mechanisms
underlying
yeast.
We
discuss
how
insight
connects
observations
ultimately
opens
new
routes
towards
superior
yeasts
help
contribute
more
sustainable
industry.
The Journal of Cell Biology,
Год журнала:
2021,
Номер
221(1)
Опубликована: Окт. 25, 2021
Cellular
quiescence
is
a
nonproliferative
state
required
for
cell
survival
under
stress
and
during
development.
In
most
quiescent
cells,
proliferation
stopped
in
reversible
of
low
Cdk1
kinase
activity;
many
organisms,
however,
states
with
high-Cdk1
activity
can
also
be
established
through
still
uncharacterized
or
developmental
mechanisms.
Here,
we
used
microfluidics
approach
coupled
to
phenotypic
classification
by
machine
learning
identify
pathways
associated
starvation-triggered
Saccharomyces
cerevisiae.
We
found
that
low-
shared
core
stress-associated
processes,
such
as
autophagy,
protein
aggregation,
mitochondrial
up-regulation,
but
differed
the
nuclear
accumulation
transcription
factors
Xbp1,
Gln3,
Sfp1.
The
decision
between
was
controlled
cycle-independent
which
acted
time-delayed
integrator
duration
stimuli.
Our
results
show
how
stress-activated
promote
cellular
outside
G1/G0.
PLoS Genetics,
Год журнала:
2022,
Номер
18(12), С. e1010559 - e1010559
Опубликована: Дек. 21, 2022
Upon
glucose
starvation,
S
.
cerevisiae
shows
a
dramatic
alteration
in
transcription,
resulting
wide-scale
repression
of
most
genes
and
activation
some
others.
This
coincides
with
an
arrest
cellular
proliferation.
A
subset
such
cells
enters
quiescence,
reversible
non-dividing
state.
Here,
we
demonstrate
that
the
conserved
transcriptional
corepressor
Tup1
is
critical
for
after
depletion.
We
show
Tup1-Ssn6
binds
new
targets
upon
depletion,
where
it
remains
as
enter
G0
phase
cell
cycle.
In
addition,
represses
variety
metabolism
transport
genes.
explored
how
mediated
accomplished
demonstrated
coordinates
Rpd3L
complex
to
deacetylate
H3K23.
found
Isw2
affect
nucleosome
positions
at
transporter
HXT
family
during
G0.
Finally,
microscopy
revealed
quarter
deletion
contain
multiple
DAPI
puncta.
Taken
together,
these
findings
role
reprogramming
response
environmental
cues
leading
quiescent
Yeast,
Год журнала:
2021,
Номер
38(6), С. 339 - 351
Опубликована: Май 12, 2021
Abstract
Much
like
other
living
organisms,
yeast
cells
have
a
limited
life
span,
in
terms
of
both
the
maximal
length
time
cell
can
stay
alive
(chronological
span)
and
number
divisions
it
undergo
(replicative
span).
Over
past
years,
intensive
research
revealed
that
span
depends
on
genetic
background
environmental
factors.
Specifically,
presence
stress
factors,
reactive
oxygen
species,
availability
nutrients
profoundly
impact
signaling
cascades
involved
response
to
these
including
target
rapamycin
(TOR)
cyclic
adenosine
monophosphate
(cAMP)/protein
kinase
A
(PKA)
pathways,
play
central
role.
Interestingly,
also
has
direct
implications
for
its
use
industrial
processes.
In
beer
brewing,
example,
inoculation
finished
with
live
cells,
process
called
“bottle
conditioning”
helps
improve
product's
shelf
by
clearing
undesirable
carbonyl
compounds
such
as
furfural
2‐methylpropanal
cause
staling.
However,
this
effect
reductive
metabolism
is
thus
inherently
cells'
chronological
span.
Here,
we
review
mechanisms
underlying
yeast.
We
discuss
how
insight
connects
observations
ultimately
opens
new
routes
towards
superior
yeasts
help
contribute
more
sustainable
industry.