Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Dec. 21, 2023
Abstract
Cinchona
officinalis
has
experienced
anthropogenic
pressures
for
nearly
400
years,
such
as
overexploitation,
habitat
fragmentation,
and
the
subsequent
reduction
of
genetic
diversity.
Additionally,
challenge
regeneration
in
its
natural
environment
makes
it
a
vulnerable
species.
In
this
context,
various
treatments
vitro
conservation
explants
were
evaluated
present
study.
For
short-term
conservation,
effects
osmotic
substances
sorbitol,
mannitol,
sucrose
at
different
concentrations
assessed.
Different
MS
B5
culture
media
also
examined
their
impact
on
growth,
budding,
mortality,
rooting
over
12
months
without
subcultures.
long-term
by
cryopreservation,
two
techniques
tested:
vitrification
encapsulation-dehydration.
Short-term
preservation
sorbitol
resulted
low
minimal
limited
development
new
shoots
compared
to
or
although
tissues
could
be
recovered
successfully
from
all
storage
conditions.
After
cryopreservation
45
days
recovery,
with
lowest
mortality
(4%)
control
treatment,
cultivated
medium
which
proved
useful
cryoprotectant,
followed
encapsulation-dehydration
treatment.
conclusion,
is
possible
conserve
C.
using
techniques,
while
further
assays
are
needed
conservation.
Biology,
Journal Year:
2023,
Volume and Issue:
12(4), P. 542 - 542
Published: April 2, 2023
Cryopreservation
is
an
effective
option
for
the
long-term
conservation
of
plant
genetic
resources,
including
vegetatively
propagated
crops
and
ornamental
plants,
elite
tree
genotypes,
threatened
species
with
non-orthodox
seeds
or
limited
seed
availability,
as
well
cell
root
cultures
useful
biotechnology.
With
increasing
success,
arsenal
cryopreservation
methods
has
been
developed
applied
to
many
material
types.
However,
severe
damage
accumulating
during
multi-step
procedure
often
causes
reduced
survival
low
regrowth,
even
when
optimized
protocol
applied.
The
conditions
at
recovery
stage
play
a
vital
role
in
supporting
regrowth
after
and,
optimized,
may
shift
life-and-death
balance
toward
positive
outcome.
In
this
contribution,
we
provide
overview
five
main
strategies
available
improve
post-cryopreservation
vitro
materials
their
further
proliferation
development.
particular,
discuss
modification
medium
composition
(iron-
ammonium-free),
exogenous
additives
cope
oxidative
stress
absorb
toxic
chemicals,
modulation
osmotic
potential.
Special
attention
paid
growth
regulators
used
various
steps
process
induce
desired
morphological
response
cryopreserved
tissues.
Given
studies
on
electron
transport
energy
provision
rewarmed
materials,
effects
light-and-dark
light
quality.
We
hope
that
summary
provides
helpful
guideline
set
references
choosing
have
not
cryopreserved.
also
propose
step-wise
be
most
sensitive
cryopreservation-induced
chemical
stresses.
Plants,
Journal Year:
2025,
Volume and Issue:
14(5), P. 699 - 699
Published: Feb. 24, 2025
Rhodomyrtus
psidioides
(G.Don)
Benth.
(Myrtaceae)
is
a
critically
endangered
rainforest
species
from
the
east
coast
of
Australia,
where
populations
have
severely
and
rapidly
declined
due
to
effects
repeated
myrtle
rust
infection.
With
very
limited
material
available
in
wild
freezing-sensitive
seeds
that
prevented
storage
seed
bank,
ex
situ
conservation
this
exceptional
has
proven
difficult.
Material
orchard
grown
at
Australian
Botanic
Garden
Mount
Annan
was
successfully
used
initiate
three
new
accessions
into
tissue
culture
cuttings,
undertake
cryopreservation
experiments
using
droplet-vitrification
(DV)
protocol
for
both
cultured
shoot
tips.
Use
seedling
initiation
effective,
with
94–100%
success
rate
semi-hardwood
explants
50–62%
softwood
explants.
Although
no
survival
after
observed,
R.
showed
some
tolerance
desiccation
exposure
cryoprotective
agents.
Regeneration
DV
demonstrated
only
one
tip
precultured
on
basal
medium
containing
0.4
M
sucrose
incubated
PVS2
20
min
prior
immersion
liquid
nitrogen.
These
results
demonstrate
value
living
collections
botanic
gardens
research,
highlight
importance
germplasm
choice
initiation,
potential
cryobiotechnologies
plant
species.
In Vitro Cellular & Developmental Biology - Plant,
Journal Year:
2024,
Volume and Issue:
60(3), P. 266 - 282
Published: April 26, 2024
Abstract
The
conservation
of
threatened
exceptional
plants,
which
cannot
be
conserved
by
seed
banking,
requires
in
vitro
technologies
for
many
the
approaches
needed
their
long-term
ex
situ
conservation.
This
study
evaluated
current
plant
literature,
as
represented
Web
Science,
to
determine
its
taxonomic
overlap
with
families
and
genera
775
species
currently
listed
exceptional.
Science
was
searched
using
terms
micropropagation,
somatic
embryogenesis,
zygotic
embryo,
cryopreservation,
target
were
identified
more
than
19,000
articles
evaluated.
There
five
significant
between
literature
species:
Fabaceae,
Asteraceae,
Orchidaceae,
Arecaceae,
Rutaceae.
However,
there
less
at
level
genus,
Citrus,
Coffea,
Quercus
having
most
.
Significant
gaps
also
found,
14
half
no
representation
search
results.
20
all
economically
important
species,
these
had
343
congeners
that
could
prioritized
research.
A
highly
group
plants
significantly
under-represented
tropical
woody
form
backbone
diversity
world’s
rainforests.
Overall,
are
areas
strength
upon
build
future
work,
but
where
research
should
effectively
conserving
plants.
Medicinal
plants
have
long
been
integral
to
diverse
traditional
medicine
systems,
with
many
exhibiting
remarkable
antiallergic
properties.
However,
several
valuable
herbs
face
threats
from
overexploitation,
unregulated
harvesting,
unsustainable
cultivation
practices,
and
climate
change
impacts.
This
growing
awareness
of
the
need
conserve
these
has
led
increased
focus
on
ex
situ
conservation
strategies,
including
field
genebanks,
botanical
gardens,
seed
in
vitro
cryogenebanks.
While
genebanks
gardens
expose
species
potential
risks
like
pest
infestations
natural
disasters,
is
effective
for
certain
species.
exceptional
plant
characterized
by
limited
production,
challenging
collection,
seeds
that
cannot
withstand
conventional
drying
storage
cryogenebank
emerges
as
most
viable
option.
Various
cryopreservation
techniques,
encompassing
preservation
whole
seeds,
zygotic
embryos,
embryonic
axes,
dormant
buds,
offer
store
theoretically
indefinitely
chapter
provides
a
comprehensive
overview
research
methods
other
explants
medicinal
Additionally,
successful
case
studies
are
presented.