Forests,
Год журнала:
2023,
Номер
14(5), С. 979 - 979
Опубликована: Май 10, 2023
Ultraviolet-B
(UV-B)
radiation
is
a
major
abiotic
stress
that
dragon
trees
are
exposed
to
during
their
growth
and
development;
however,
it
also
an
environmental
signal
perceived
by
plants
affects
the
flavonoid
pathway.
Previous
studies
have
demonstrated
amounts
of
flavonoids
contained
in
tree
resin,
otherwise
known
as
dragon’s
blood.
However,
traits
mechanism
involved
UV-B-mediated
increase
still
unknown.
Here,
we
studied
response
Dracaena
cambodiana
under
full
solar
UV-B
radiation.
The
results
showed
contents
total
D.
significantly
increased
after
exposure.
Then,
transcriptome
was
used
for
determining
interactive
accumulation
stress.
Differential
expression
analyses
identified
34
differentially
expressed
genes
(DEGs)
synthesis;
specifically,
24
DEGs
were
up-regulated
In
addition,
57
Ca2+/kinase
sensors,
58
ROS
scavenging
plant
hormone
pathway,
116
transcription
factors
5
families
further
analyzed.
Finally,
deduced
potential
UV-B-promoting
formation
neutralize
damage
derived
from
based
on
gene
co-expression
network
previous
other
plants.
Considering
wild
populations
currently
highly
threatened
anthropogenic
natural
stressors,
between
provide
valuable
information
toward
understanding
blood
help
us
reveal
evolution
cambodiana,
with
eventual
goal
aiding
global
conservation
this
precious
biological
resource.
Discover Sustainability,
Год журнала:
2024,
Номер
5(1)
Опубликована: Ноя. 26, 2024
Contrary
to
the
conventional
wisdom
and
practices
moderate
non-burning
ultraviolet
(UV)
radiation
may
be
beneficial
our
existence,
but
ecosystems
human
health
are
seriously
threatened
by
rise
in
UV
from
ozone
layer
loss
climate
change.
Nevertheless,
there
is
less
current
information
on
environmental
effects
of
elevated
stress.
This
review
looks
at
patterns
levels
today
emphasizes
causes,
which
include
anthropogenic
activities
ozone.
With
a
focus
physiological,
cellular,
ecological
mechanisms,
environment,
wildlife,
aquatic
terrestrial
ecosystems,
thoroughly
discussed.
Various
mitigation
tactics,
such
as
technological
ones
like
UV-protective
materials,
biological
breeding
UV-resistant
species,
policy
public
education
international
agreements,
discussed
here.
provides
thorough
understanding
potential
techniques
combining
these
various
strategies.
study
crucial
that
will
help
protect
against
harmful
environment
health.
LWT,
Год журнала:
2024,
Номер
195, С. 115821 - 115821
Опубликована: Янв. 31, 2024
This
study
investigated
the
impact
of
hydrogen
(H2)
treatment
under
ultraviolet
B
(UV–B)
irradiation
on
growth
status,
antioxidant
system,
metabolite
changes,
and
isoflavone
content
composition
germinated
soybeans.
The
results
showed
that
compared
with
UV-B
alone,
H2
promoted
soybeans
by
regulating
metabolites
(nucleotides,
fats,
amino
acids,
hormones,
neurotransmitters)
related
metabolic
pathways.
resists
stress
binding
directly
to
reactive
oxygen
species
or
mediating
system.
Increased
activity
gene
expression
phenylalanine
ammonia-lyase,
cinnamic
acid-4-hydroxylase,
4-coumaric
acid
coenzyme
A
ligase
enrichment
promoting
conversion
glycosides
aglycones
reducing
7-O-glucosyltransferase
7-O-glucoside-6″-O-malonyltransferase.
These
explain
some
extent
possible
reasons
for
alleviate
stress,
promote
soybeans,
enrich
isoflavones
(especially
aglycones).
Plant Stress,
Год журнала:
2024,
Номер
12, С. 100495 - 100495
Опубликована: Май 20, 2024
Rice
is
the
staple
food
for
more
than
half
of
global
population.
It
cultivated
in
over
100
countries,
and
predominant
Asia,
which
accounts
90%
world's
production.
As
most
crucial
crop
globally,
rice
sensitive
to
both
UVB
radiation
climate
variations.
UltraViolet-B
(UVB)
recognised
as
adverse
factors
photosynthesis
plant
growth.
The
current
study
investigates
resilience
Oryza
sativa
L.
(IR20)
seedlings
irradiation,
focusing
on
parameters
such
photosynthetic
pigment,
total
sugar,
phenolic,
free
amino
acids,
malondialdehyde
content,
hydrogen
peroxide,
antioxidative
enzymes.
mRNA
expression
levels
genes
involved
perception,
signalling,
response
(UVR8,
HY5,
RLCK,
PHT2,
URP)
were
studied
using
quantitative
RT-PCR
(RT-qPCR).
Additionally,
a
computational
approach
was
employed
identify
UVB-responsive
microRNAs
(miRNAs)
their
corresponding
target
mRNAs;
subsequently
validated
stem-loop
RT-qPCR
RT-qPCR,
respectively.
Surprisingly,
it
discovered
that
H2O2
content
IR20
cultivar
increased
despite
no
significant
changes
observed
lipid
peroxidation,
chlorophyll,
phenolic
content.
irradiation
increases
sugar
decreases
entire
acid
while
not
affecting
protein.
analysis
reveals
exposure
augment
related
signal
detection
(UVR8),
signalling
(HY5,
WRKY),
(PHT2,
CA,
URP).
Our
findings
also
suggest
at
post-transcriptional
stage,
miRNAs
expressed
upon
are
responsible
tolerance
radiation.
Overall,
results
reveal
exhibits
promise
candidate
development
varieties
highly
productive
resilient
induced
stress.
Forests,
Год журнала:
2023,
Номер
14(5), С. 979 - 979
Опубликована: Май 10, 2023
Ultraviolet-B
(UV-B)
radiation
is
a
major
abiotic
stress
that
dragon
trees
are
exposed
to
during
their
growth
and
development;
however,
it
also
an
environmental
signal
perceived
by
plants
affects
the
flavonoid
pathway.
Previous
studies
have
demonstrated
amounts
of
flavonoids
contained
in
tree
resin,
otherwise
known
as
dragon’s
blood.
However,
traits
mechanism
involved
UV-B-mediated
increase
still
unknown.
Here,
we
studied
response
Dracaena
cambodiana
under
full
solar
UV-B
radiation.
The
results
showed
contents
total
D.
significantly
increased
after
exposure.
Then,
transcriptome
was
used
for
determining
interactive
accumulation
stress.
Differential
expression
analyses
identified
34
differentially
expressed
genes
(DEGs)
synthesis;
specifically,
24
DEGs
were
up-regulated
In
addition,
57
Ca2+/kinase
sensors,
58
ROS
scavenging
plant
hormone
pathway,
116
transcription
factors
5
families
further
analyzed.
Finally,
deduced
potential
UV-B-promoting
formation
neutralize
damage
derived
from
based
on
gene
co-expression
network
previous
other
plants.
Considering
wild
populations
currently
highly
threatened
anthropogenic
natural
stressors,
between
provide
valuable
information
toward
understanding
blood
help
us
reveal
evolution
cambodiana,
with
eventual
goal
aiding
global
conservation
this
precious
biological
resource.
