Plant Cell & Environment,
Journal Year:
2024,
Volume and Issue:
47(5), P. 1592 - 1605
Published: Jan. 28, 2024
Abstract
Reactive
oxygen
species
(ROS)
can
serve
as
signaling
molecules
that
are
essential
for
plant
growth
and
development
but
abiotic
stress
lead
to
ROS
increases
supraoptimal
levels
resulting
in
cellular
damage.
To
ensure
efficient
signaling,
cells
have
machinery
locally
synthesize
initiate
responses
scavenge
prevent
it
from
reaching
damaging
levels.
This
review
summarizes
experimental
evidence
revealing
the
role
of
during
multiple
stages
reproduction.
Localized
synthesis
controls
formation
pollen
grains,
pollen−stigma
interactions,
tube
growth,
ovule
development,
fertilization.
Plants
utilize
ROS‐producing
enzymes
such
respiratory
burst
oxidase
homologs
organelle
metabolic
pathways
generate
ROS,
while
presence
scavenging
mechanisms,
including
antioxidant
proteins
small
molecules,
serves
its
escalation
harmful
In
this
review,
we
summarized
function
mechanisms
all
reproductive
gametophyte
until
completion
Additionally,
further
address
impact
elevated
temperatures
induced
on
impairing
these
processes
flavonol
antioxidants
maintaining
homeostasis
minimize
temperature
combat
global
climate
change
agriculture.
The Plant Cell,
Journal Year:
2024,
Volume and Issue:
36(10), P. 4511 - 4534
Published: Aug. 5, 2024
Elevated
temperatures
impair
pollen
performance
and
reproductive
success,
resulting
in
lower
crop
yields.
The
tomato
(Solanum
lycopersicum)
anthocyanin
reduced
(are)
mutant
harbors
a
mutation
FLAVANONE
3-HYDROXYLASE
(F3H),
impaired
flavonol
antioxidant
biosynthesis.
are
has
seed
set
relative
to
the
VF36
parental
line,
phenotypes
that
accentuated
at
elevated
temperatures.
Transformation
of
with
wild-type
F3H
gene,
or
chemical
complementation
flavonols,
prevented
temperature-dependent
reactive
oxygen
species
(ROS)
accumulation
restored
viability,
germination,
tube
elongation
levels.
Overexpression
temperature-driven
ROS
increases
performance,
revealing
biosynthesis
promotes
thermotolerance.
Although
stigmas
had
levels,
growth
tubes
was
similarly
both
pistils.
RNA-seq
performed
optimal
stress
are,
VF36,
overexpression
line
multiple
timepoints
across
elongation.
number
differentially
expressed
genes
increased
over
time
under
all
genotypes,
greatest
are.
These
findings
suggest
potential
agricultural
interventions
combat
negative
effects
heat-induced
lead
failure.
Frontiers in Plant Science,
Journal Year:
2024,
Volume and Issue:
15
Published: Feb. 8, 2024
As
Arabidopsis
flowers
mature,
specialized
cells
within
the
anthers
undergo
meiosis,
leading
to
production
of
haploid
microspores
that
differentiate
into
mature
pollen
grains,
each
containing
two
sperm
for
double
fertilization.
During
pollination,
grains
are
dispersed
from
stigma
subsequent
Transcriptomic
studies
have
identified
a
large
number
genes
expressed
over
course
male
reproductive
development
and
functional
characterization
some
revealed
their
involvement
in
floral
meristem
establishment,
organ
growth,
sporogenesis,
microsporogenesis,
maturation.
These
encode
plethora
proteins,
ranging
transcriptional
regulators
enzymes.
This
review
will
focus
on
regulatory
networks
control
development,
starting
flower
ending
with
anther
dehiscence,
transcription
factors
notable
target
genes.
PLANT PHYSIOLOGY,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 5, 2024
Abstract
During
sexual
reproduction
in
flowering
plants,
tip-growing
pollen
tubes
travel
from
the
stigma
inside
maternal
tissues
of
pistil
toward
ovules.
In
maize
(Zea
mays
L.),
is
highly
elongated,
forming
thread-like
strands
known
as
silks.
Only
compatible
successfully
penetrate
and
grow
through
transmitting
tract
silk
to
reach
Like
pollen,
fungal
spores
germinate
at
surface
silks
generate
tube-like
structures
(hyphae)
penetrating
tissue.
To
elucidate
commonalities
differences
between
responses
these
distinctive
invading
cells,
we
compared
growth
behavior
various
invaders
well
transcriptome
after
self-pollination,
cross-pollination,
infection
using
2
different
fungi.
We
report
that
self-pollination
triggers
mainly
senescence
genes,
whereas
incompatible
Tripsacum
dactyloides
leads
downregulation
rehydration,
microtubule,
cell
wall–related
explaining
slower
tube
arrest.
Invasion
by
ascomycete
Fusarium
graminearum
numerous
defense
including
activation
monolignol
biosynthesis
NAC
WRKY
transcription
factor
basidiomycete
Ustilago
maydis
are
generally
much
weaker.
present
evidence
pollination
trigger
transcriptional
reprograming
wall.
Pathogen
invasion
also
activates
phytoalexin
pathway.
Frontiers in Plant Science,
Journal Year:
2024,
Volume and Issue:
15
Published: July 29, 2024
Panax
japonicus
is
an
important
medicinal
plant,
and
flavonoids
are
one
of
its
main
secondary
metabolites.
In
this
study,
the
roots,
fibrous
stems,
leaves
flowers
P.
were
analyzed
using
transcriptomics
widely
targeted
metabolomics.
Through
correlation
analysis
transcription
metabolism,
flavonoid
biosynthesis
pathway
in
was
analyzed,
accumulation
metabolites
expression
related
genes
investigated.
Metabolomics
revealed
a
total
209
japonicus,
among
which
flavonoids,
flavonols,
flavanones
flavanonols
significantly
accumulated
leaves.
Transcriptome
sequencing
that
key
exhibited
increased
The
patterns
involved
biosynthesis,
including
PjC4H,
Pj4CL,
PjCHS,
PjCHI,
PjF3H,
PjF3'H,
PjCYP,
PjPAL,
consistent
with
their
upstream
downstream
metabolites,
demonstrating
significant
positive
them.
addition,
PjUGT
gene
highly
expressed
five
tissues
indicating
factors
for
diversity
glycosides.
WGCNA
results
showed
WRKY
exist
candidate
modules,
it
possible
PjWRKY
regulating
This
study
reveals
spatial
differences
different
provides
clues
further
understanding
regulatory
mechanisms
metabolism
thus
contributing
to
optimization
germplasm
resources
promotion
genetic
analysis.
Frontiers in Plant Science,
Journal Year:
2023,
Volume and Issue:
14
Published: Nov. 17, 2023
Flos
Sophorae
(FS),
or
the
dried
flower
buds
of
Sophora
japonica
L.,
is
widely
used
as
a
food
and
medicinal
material
in
China.
The
quality
S.
flowers
varies
with
developmental
stages
(S1-S5)
plant.
However,
relationship
between
FS
maturity
remains
unclear.
Inductively
coupled
plasma
optical
emission
spectrometry
(ICP-OES)
ultra-high
performance
liquid
chromatography
electrospray
ionization-triple
quadrupole-linear
ion
trap
mass
(UPLC-ESI-Q
TRAP-MS/MS)
were
to
analyze
inorganic
elements
flavonoid
metabolites,
respectively.
A
combined
analysis
metabolites
was
conducted
determine
patterns
formation.
Sixteen
173
that
accumulated
at
different
identified.
Notably,
54
associated
amelioration
major
human
diseases
identified,
Ca,
P,
K,
Fe,
Cu
postulated
influence
metabolism
synthesis.
This
study
offers
novel
perspective
foundation
for
further
exploration
rules
governing
plant
materials.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 19, 2024
Abstract
Background
The
WD40
domain,
as
one
of
the
most
abundant
domains
in
eukaryotic
genomes,
is
involved
diverse
aspects
plant
growth
and
development,
secondary
metabolic
biosynthesis,
responses
to
biotic
abiotic
stresses.
To
date,
repeat
(WD40)
protein
has
been
systematically
studied
several
model
plants,
but
not
reported
pepper
genome.
Results
In
this
paper,
269,
237,
257
CaWD40
genes
were
identified
Zunla,
CM334
Zhangshugang
genome,
respectively.
Then,
sequences
from
Zunla
genome
selected
for
subsequent
analysis,
including
chromosomal
localization,
phylogenetic
relationships,
sequence
characteristics,
motif
compositions,
expression
profile.
Moreover,
proteins
unevenly
distributed
on
12
chromosomes,
contained
19
tandem
duplicate
gene
pairs.
269
CaWD40s
could
be
distinguished
into
six
branches
(
A
F),
they
have
17
different
types
domain
distribution.
family
exhibited
patterns,
specifically
expressed
flowers
seeds.
Finally,
yeast
two-hybrid
(Y2H)
dual-luciferase
assay
indicated
that
CaWD40-91
interact
with
CaAN1CaDYT1,
which
may
anthocyanin
biosynthesis
male
sterility
pepper.
Conclusions
Overall,
we
systematacially
characterized
phylogeny,
classification,
structure,
CaWD40
Our
findings
provide
a
valuable
foundation
further
investigation
function
