Scientific Reports,
Год журнала:
2022,
Номер
12(1)
Опубликована: Сен. 30, 2022
Abstract
The
diploid
yellow
potato
(
Solanum
tuberosum
L.
Phureja
Group)
is
an
important
plant
genetic
resource.
In
this
study,
we
report
for
the
first
time
characterization
of
anther
development
and
pollen
formation
in
cultivar
Criolla
Colombia.
description
morphological
histological
characters
buds
flowers
at
different
developmental
stages
permitted
to
identify
ten
main
stages,
from
differentiation
male
cells
sporangium,
meiosis,
microspores
maturation,
release
mature
pollen.
addition,
results
provide
a
graphic
guide
anther,
through
sequential
orderly
epidermis,
endothecium,
middle
layer
nutritive
or
tapetum.
This
microanatomical
information
will
be
useful
work
focused
on
androgenesis
identification
gene
regulation
floral
biology
gamete
formation.
Therefore,
study
determined
that
efficiently
obtain
haploids,
flower
between
5
8.9
mm
long
(stage
6
8)
should
used,
which
tetrads
are
early
uninucleate
binucleate
stage.
International Journal of Molecular Sciences,
Год журнала:
2025,
Номер
26(4), С. 1568 - 1568
Опубликована: Фев. 13, 2025
Casparian
strip
integrity
factors
(CIFs),
which
are
tyrosine-sulfated
small
peptides,
crucial
genes
involved
in
the
formation
and
regulation
of
play
an
important
role
plant
stress
response.
In
order
to
explore
evolution,
characteristics,
role,
function
CIFs
response
continuous
cropping
obstacles
(CCOs),
bioinformatics
gene
expression
analysis
CIF
Pogostemon
cablin
was
carried
out
by
determining
phylogenetic
relationship,
chromosome
location,
structure,
RT-qPCR
results.
Results
showed
that
a
total
12
PatCIF
family
were
identified
on
different
chromosomes.
Promoter
prediction
revealed
16
cis-regulatory
elements.
A
systematic
evolutionary
study
33
species
indicates
originated
from
Spermatophyta.
Collinearity
P.
shared
19
syntenic
with
Solanum
lycopersicum
only
8
Oryza
sativa.
Transcriptome
indicated
PatCIF1-4
PatGSO1b/1c/1f
decreased
under
p-hydroxybenzoic
acid
treatment,
further
validation
four
consistent
AlphaFold
protein
interaction
region
between
mature
peptide
via
LRR
domain,
provides
key
binding
surface
for
PatCIFs.
This
offers
theoretical
basis
investigate
roles
PatCIFs
PatGSO1s
CCOs
their
interactions
cablin.
Frontiers in Plant Science,
Год журнала:
2025,
Номер
16
Опубликована: Фев. 24, 2025
Peptides,
currently
being
considered
as
a
novel
class
of
plant
hormones,
play
diverse
roles
in
growth
and
development.
Peptides
trigger
signaling
by
binding
to
receptors
co-receptors,
thus
activating
cellular
pathways.
Recently,
peptides
have
been
extensively
investigated
reproduction-related
processes,
ranging
from
gametes
development
fusion.
In
this
review,
we
summarize
recent
advancements
related
the
role
reproduction
discuss
challenges
that
need
be
addressed
urgently.
Small
peptides
of
the
CIF
family
act
as
signaling
molecules
and
participate
in
important
pathways,
playing
crucial
roles
processes
plant
development
environmental
response.
However,
has
not
been
identified
allopolyploid
Brassica
napus.
This
study
16
BnCIFs
coding
genes
napus,
classified
into
three
phylogenetic
subfamilies
four
types
(CIF1/2,
CIF3,
CIF4,
TWS1)
based
on
Arabidopsis
thaliana
homologs.
Chromosomal
distribution
analysis
revealed
their
even
spread
across
11
chromosomes,
primarily
inherited
from
rapa
with
evolutionary
contributions
chromosomal
segment
duplication,
recombination,
polyploidization.
Conserved
features
were
observed
mature
(21/23
amino
acids),
including
an
N-terminal
DY
motif,
two
central
prolines,
hydrophilic
C-terminal
residues.
Promoter
regions
contained
multiple
hormone-
stress-responsive
cis-elements,
suggesting
diverse
regulatory
processes.
Spatiotemporal
expression
profiling
demonstrated
tissue-specific
patterns
within
each
BnCIF
type,
alongside
broad
responsiveness
to
exogenous
hormones
abiotic
stress,
implying
functional
diversification.
qRT-PCR
CIF1/2-type
under
nitrogen
treatments
significant
upregulation
roots
low
nitrogen,
indicating
potential
involvement
absorption/transport.
Comparative
structural
GSO1/2
receptor
kinases
between
napus
suggested
possible
BnCIFs-GSO1/2
binding
interactions.
Our
comprehensively
aspects
such
gene
structure,
phylogeny,
location,
duplication
patterns,
characteristics,
conservation
small
after
cleavage
processing,
ability
bind
receptors.
The
results
lay
a
foundation
for
further
BnCIFs.
In
further,
deciphering
network
may
provide
new
targets
optimizing
root
architecture
breeding
stress
resistance
Journal of Experimental Botany,
Год журнала:
2024,
Номер
75(22), С. 6980 - 6997
Опубликована: Сен. 12, 2024
Abstract
Plant
hormones
are
essential
and
structurally
diverse
molecules
that
regulate
various
aspects
of
plant
growth,
development,
stress
responses.
However,
the
precise
analysis
in
complex
biological
samples
poses
a
challenge
due
to
their
low
concentrations,
dynamic
levels,
intricate
spatial
distribution.
Moreover,
complexity
interconnectedness
hormone
signaling
networks
make
it
difficult
simultaneously
trace
multiple
distributions.
In
this
review,
we
provide
an
overview
currently
recognized
small-molecule
hormones,
signal
peptide
growth
regulators,
along
with
analytical
methods
employed
for
analysis.
We
delve
into
latest
advancements
mass
spectrometry
imaging
situ
fluorescence
techniques,
which
enable
examination
distribution
hormones.
The
advantages
disadvantages
these
techniques
further
discussed.
Finally,
propose
potential
avenues
enhance
our
understanding
biology.
Plant Cell & Environment,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 17, 2024
ABSTRACT
Posttranslational
tyrosine
sulfation
of
peptides
and
proteins
is
catalysed
by
tyrosylprotein
sulfotransferases
(TPSTs).
In
Arabidopsis
,
essential
for
the
activities
peptide
hormones,
such
as
phytosulfokine
(PSK)
root
meristem
growth
factor
(RGF).
Here,
we
identified
a
TPST‐encoding
gene,
MtTPST
from
model
legume
Medicago
truncatula
.
expression
was
detected
in
all
organs,
with
highest
level
nodules.
A
promoter:GUS
assay
revealed
that
highly
expressed
apical
meristem,
nodule
primordium
meristem.
The
loss‐of‐function
mutant
mttpst
exhibited
stunted
phenotype
short
roots
reduced
number
size.
Application
both
sulfated
PSK
RGF3
partially
restored
defective
length
reduction
symbiotic
nodulation
recovered
treatment
peptide.
MtTPST‐PSK
module
functions
downstream
Nod
signalling
to
promote
initiation
via
regulating
accumulation
and/or
cytokinin
auxin.
Additionally,
small‐nodule
which
resulted
decreased
meristematic
activity,
complemented
treatment.
Together,
these
results
demonstrate
MtTPST,
through
its
substrates
PSK,
other
peptide(s),
positively
regulates
development
growth.
During
flowering
plant
reproduction,
anthers
produce
pollen
grains,
the
development
of
which
is
supported
by
tapetum,
a
nourishing
maternal
tissue
that
also
contributes
non-cell-autonomously
to
wall,
resistant
external
layer
on
surface.
How
anther
restricts
movement
tapetum-derived
wall
components,
while
allowing
metabolites
such
as
sugars
and
amino
acids
reach
developing
pollen,
remains
unknown.
Here,
we
show
experimentally
in
arabidopsis
thaliana
tapetum
are
symplastically
isolated
from
each
other,
other
sporophytic
tissues,
meiosis
onwards.
We
peritapetal
strip,
an
apoplastic
structure,
separates
grains
cell
layers
can
prevent
diffusion
fluorescent
proteins,
again
The
formation
selective
barrier
functions
strip
require
two
NADPH
oxidases,
RBOHE
RBOHC,
play
key
role
formation.
Our
results
suggest
that,
together
with
symplastic
isolation,
gating
apoplast
around
may
help
generate
metabolically
distinct
compartments.
Cells,
Год журнала:
2023,
Номер
12(11), С. 1542 - 1542
Опубликована: Июнь 4, 2023
In
plants,
the
timely
degeneration
of
tapetal
cells
is
essential
for
providing
nutrients
and
other
substances
to
support
pollen
development.
Rapid
alkalinization
factors
(RALFs)
are
small,
cysteine-rich
peptides
known
be
involved
in
various
aspects
plant
development
growth,
as
well
defense
against
biotic
abiotic
stresses.
However,
functions
most
them
remain
unknown,
while
no
RALF
has
been
reported
involve
tapetum
degeneration.
this
study,
we
demonstrated
that
a
novel
peptide,
EaF82,
isolated
from
shy-flowering
‘Golden
Pothos’
(Epipremnum
aureum)
RALF-like
peptide
displays
alkalinizing
activity.
Its
heterologous
expression
Arabidopsis
delayed
reduced
production
seed
yields.
RNAseq,
RT-qPCR,
biochemical
analyses
showed
overexpression
EaF82
downregulated
group
genes
pH
changes,
cell
wall
modifications,
degeneration,
maturation,
seven
endogenous
genes,
decreased
proteasome
activity
ATP
levels.
Yeast
two-hybrid
screening
identified
AKIN10,
subunit
energy-sensing
SnRK1
kinase,
its
interacting
partner.
Our
study
reveals
possible
regulatory
role
suggests
action
may
mediated
through
AKIN10
leading
alteration
transcriptome
energy
metabolism,
thereby
causing
deficiency
impairing
Small
peptides
(SPs),
ranging
from
5
to
100
amino
acids,
play
integral
roles
in
plants
due
their
diverse
functions.
Despite
low
abundance
and
small
molecular
weight,
SPs
intricately
regulate
critical
aspects
of
plant
life,
including
cell
division,
growth,
differentiation,
flowering,
fruiting,
maturation,
stress
responses.
As
vital
mediators
intercellular
signaling,
have
garnered
significant
attention
biology
research.
This
comprehensive
review
delves
into
SPs'
structure,
classification,
identification,
providing
a
detailed
understanding
significance.
Additionally,
we
summarize
recent
findings
on
the
biological
functions
signaling
pathways
prominent
that
growth
development.
The
also
offers
forward-looking
perspective
future
research
directions
peptide
pathways.