Low
temperatures
disrupt
cellular
processes
and
require
metabolic
adaptation.
Cold-induced
lipid
remodeling
helps
maintain
membrane
permeability
and
prevents
phase
separations
that
can
lead
to
cellular
damage.
A
review
was
done
to
summarize
mechanisms
by
which
plants
remodel
their
membrane
lipids
to
adapt
to
low
temperatures
and
cold
stress.
They
focus
on
glycerolipids,
sphingolipids,
and
phytosterols.
Additionally,
they
examine
how
cold
stress
affects
membrane
composition
and
functionality
at
the
subcellular
level,
presenting
current
glycerolipidomic
data
from
Arabidopsis
thaliana,
maize,
and
sorghum.
This
data
highlights
the
consistency
as
well
as
the
variability
of
lipid
responses
across
species.
The
authors
delve
into
the
three
main
ways
of
lipid
alteration.
First
is
acyl
editing
and
headgroup
exchange,
where
plants
modify
their
membrane
lipids
to
maintain
membrane
integrity
and
function.
The
second
way
is
regulating
lipase
activity,
which
plays
a
crucial
role
in
lipid
remodeling
during
cold
stress.
The
third
is
changes
in
phytosterol
abundance,
where
altering
phytosterol
levels
helps
to
stabilize
membranes
under
cold
conditions.
The
review
points
out
recent
advances
and
accomplishments
in
the
field
with
an
informative
overview
of
observed
lipid
changes
and
highlights
gaps
in
current
knowledge
and
areas
needing
further
investigation
to
fully
understand
and
manipulate
plant
cold
tolerance.
Source:
plantae.org
