Royal Society of Chemistry eBooks,
Год журнала:
2024,
Номер
unknown, С. 183 - 219
Опубликована: Ноя. 29, 2024
The
blue
bioeconomy
represents
a
sustainable
pathway
to
utilizing
marine
resources
for
economic
growth
and
environmental
stewardship.
Within
the
framework,
this
chapter
aims
provide
insights
into
leveraging
macroalgae
development
innovation
in
bioeconomy.
It
gives
brief
overview
of
types
diversity
(seaweeds)
besides
their
ecological
importance.
explores
wide
range
bioactive
compounds
that
produce,
including
metabolites,
polysaccharides,
lipids,
pigments.
delves
potential
as
cradles
value-added
products
biofuels.
Additionally,
examines
importance
practices,
considerations,
challenges
associated
with
commercialization.
Marine Drugs,
Год журнала:
2024,
Номер
22(3), С. 121 - 121
Опубликована: Март 5, 2024
The
effect
of
UV
radiation
on
the
accumulation
mycosporine-like
amino
acids
(MAAs)
and
pigments
was
investigated
red
macroalga
Palmaria
palmata
cultivated
for
21
days.
data
were
combined
with
NaNO3
to
further
investigate
synthesis
these
nitrogenous
compounds.
A
progressive
decrease
in
both
total
MAA
pigment
contents
observed,
a
positive
nitrate
supply.
Usujirene
only
exhibiting
significantly
increasing
content
when
exposed
radiation,
changing
from
9%
24%
MAA’s
contribution,
no
variation
observed
NaNO3.
This
suggests
specific
induction
or
pathway
usujirene
photoprotection,
while
other
MAAs
could
have
been
limited
by
an
insufficient
amount
and/or
irradiance.
photoprotective
ability
some
impacted
nitrogen
starvation
over
time,
resulting
potential
use
as
source
macroalgae.
confirmed
multiple
effects
environmental
factors
providing
new
insights
into
usujirene,
which
find
application
cosmetics
sector
natural
sunscreen
anti-ageing
agent.
Frontiers in Plant Science,
Год журнала:
2024,
Номер
15
Опубликована: Март 12, 2024
The
Bangiales
represent
an
ancient
lineage
within
red
algae
that
are
characterized
by
a
life
history
featuring
special
transitional
stage
from
diploid
to
haploid
known
as
the
conchosporangia
stage.
However,
regulatory
mechanisms
governing
initiation
of
this
changes
in
environmental
conditions
not
well
understood.
This
study
analyzed
phytohormones
and
H
2
O
content
during
development
conchosporangia.
It
also
compared
gene
expression
early
through
transcriptome
analysis.
findings
revealed
was
shown
be
key
signal
initiating
transition
conchocelis
Pyropia
haitanensis
.
Phytohormone
analysis
showed
significant
increase
1-aminocylopropane-1-carboxylic
acid
(ACC)
levels
maturation,
while
were
found
promote
rapid
release
induction
led
development,
ACC
enhanced
both
production
development.
promotive
effect
inhibited
NADPH
oxidase
inhibitor
diphenylene
iodonium
scavenger
N,
N’-dimethylthiourea.
balance
oxidative–antioxidative
maintained
regulating
activities
transcriptional
enzymes
involved
scavenging.
Transcriptome
conjunction
with
evaluation
enzyme
transcription
level
upregulation
protein
sugar
synthesis
along
modulation
energy
supply
under
induced
exogenous
enhance
entire
process.
Overall,
demonstrates
enhances
promotion
cycle
switch
responsible
for
vegetative
meiosis-preceding
species.
Philosophical Transactions of the Royal Society B Biological Sciences,
Год журнала:
2024,
Номер
379(1914)
Опубликована: Сен. 29, 2024
The
special
issue
‘The
evolution
of
plant
metabolism’
has
brought
together
original
research,
reviews
and
opinions
that
cover
various
aspects
from
the
full
breath
metabolism
including
its
interaction
with
environment
other
species.
Here,
we
briefly
summarize
these
efforts
attempts
to
extract
a
consensus
opinion
best
manner
in
which
tackle
this
subject
both
now
future.
This
article
is
part
theme
metabolism’.
G3 Genes Genomes Genetics,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 23, 2024
The
fission
yeast
Schizosaccharomyces
pombe
and
the
budding
Saccharomyces
cerevisiae
are
highly
diverged
(530
mya),
single-celled,
model
eukaryotic
organisms.
Scientists
employ
mating,
meiosis,
plating
of
ascospores
cells
to
generate
strains
with
novel
genotypes
discover
biological
processes.
Our
three
laboratories
encountered
independently
sudden-onset,
major
impediments
such
research.
Spore
suspensions
vegetative
no
longer
plated
effectively
on
minimal
media.
By
systematically
analyzing
multiple
different
media
components
from
suppliers,
we
identified
source
problem.
Specific
lots
agar
were
toxic.
We
report
that
this
sporadic
toxicity
affects
stocks
vendors,
has
occurred
repeatedly
over
at
least
decades,
extends
species
in
taxa.
Interestingly,
inhibitory
effects
displayed
variable
penetrance
attenuated
rich
Consequently,
quality
control
checks
use
only
can
provide
false
assurances
agar.
Lastly,
describe
likely
sources
specific
guidance
for
measures
should
be
applied
by
all
vendors
as
preconditions
their
sale
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Март 17, 2024
Abstract
Red
algae
and
the
secondary
symbiotic
that
engulfed
a
red
alga
as
an
endosymbiont
are
called
red-lineage
algae.
They
comprise
key
marine
taxa
including
diatoms,
Haptophyta,
Cryptophyta.
Several
photosystem
(PS)
I–light-harvesting
complex
I
(LHCI)
structures
have
been
reported
from
—two
Cyanidioschyzon
merolae
(Cyanidiophyceae),
Porphyridium
purpureum
(Rhodophytina),
diatom
Chaetoceros
gracilis
Cryptophyte
Chroomonas
placoidea
.
Here,
we
clarified
orthologous
relation
of
LHCIs
in
by
combining
detailed
phylogenetic
analysis
structural
information
PSI–LHCI.
We
found
seven
Lhcr
groups
LHCI
conserved
Rhodophytina;
Furthermore,
during
both
genome
reduction
Cyanidioschyzonales
endosymbiosis
leading
to
Cryptophyta,
some
were
lost
replaced
existing
or
differentiated
LHCIs.
Especially
uniquely
diversified
Lhcrs
form
three
sets
heterotrimers
contributed
expansion
antenna
size
PSI,
supporting
modern
ecological
success
this
taxon.
denominated
“neolocalization”
these
examples
flexible
reorganization
This
study
provides
new
insights
into
evolutionary
process
associated
with
PSI
clarifies
need
for
molecular
phylogeny
elucidate
plausible
history
LHCI.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Апрель 29, 2024
Abstract
The
role
of
maternal
tissue
in
the
control
embryogenesis
remains
enigmatic
many
complex
organisms.
Here,
we
investigate
contribution
to
apical-basal
patterning
kelp
embryo.
Using
a
modified
fertilisation
protocol
which
yields
synchronously
developing
embryos,
show
that
detachment
from
leads
compromised
robustness
patterning.
Detached
embryos
are
rounder
and
often
aberrant
morphologies.
Furthermore,
absence
contact
with
increases
parthenogenesis,
highlighting
critical
signals
initial
stages
development.
When
zygotes
detached
female
gametophyte
while
part
oogonial
cell
wall
still
attached
egg,
proper
is
rescued
showing
key
for
connection
developmental
kelps.
This
observation
reminiscent
another
brown
alga,
Fucus
,
where
has
been
shown
play
fate
determination.
In
case
kelps,
oogonium
mediates
basal
determination
by
providing
an
extrinsic
cue
its
extracellular
matrix
future
Our
findings
suggest
conserved
mechanism
across
phylogenetically
distant
oogamous
algal
lineages,
localised
secretion
sulphated
F2
fucans
mediate
establishment
polarity.
