International Journal of Molecular Sciences,
Journal Year:
2019,
Volume and Issue:
20(24), P. 6200 - 6200
Published: Dec. 9, 2019
Melatonin,
an
amine
hormone
highly
conserved
during
evolution,
has
a
wide
range
of
physiological
functions
in
animals
and
plants.
It
is
involved
plant
growth,
development,
maturation,
aging,
also
helps
ameliorate
various
types
abiotic
biotic
stresses,
including
salt,
drought,
heavy
metals,
pathogens.
Melatonin-related
growth
defense
responses
plants
are
complex,
involve
many
signaling
molecules.
Among
these,
the
most
important
one
nitric
oxide
(NO),
freely
diffusing
amphiphilic
biomolecule
that
can
easily
cross
cell
membrane,
produce
rapid
signal
responses,
participate
variety
reactions.
NO-induced
S-nitrosylation
responses.
NO
interacts
with
melatonin
as
long-range
molecule,
regulate
maintain
oxidative
homeostasis.
Exposure
to
stresses
causes
increase
endogenous
levels,
consequent
up-regulation
synthesis
genes,
further
content.
The
application
exogenous
defense-related
transcription
factors,
resulting
enhanced
stress
resistance.
When
infected
by
pathogenic
bacteria,
acts
downstream
lead
increased
which
turn
induces
mitogen-activated
protein
kinase
(MAPK)
cascade
associated
promote
sugar
glycerol
production,
leading
levels
salicylic
acid
NO.
Melatonin
function
cooperatively
lateral
root
delay
iron
deficiency.
Further
studies
needed
clarify
certain
aspects
melatonin/NO
relationship
physiology.
Plants,
Journal Year:
2023,
Volume and Issue:
12(4), P. 781 - 781
Published: Feb. 9, 2023
Melatonin
is
a
multifunctional
and
ubiquitous
molecule.
In
animals,
melatonin
hormone
that
involved
in
wide
range
of
physiological
activities
also
an
excellent
antioxidant.
plants,
it
has
been
considered
master
regulator
multiple
processes
as
well
hormonal
homeostasis.
Likewise,
known
for
its
role
protective
biomolecule
activator
tolerance
resistance
against
biotic
abiotic
stress
plants.
Since
infections
by
pathogens
such
bacteria,
fungi
viruses
crops
result
large
economic
losses,
interest
aroused
determining
whether
plays
relevant
plant
defense
systems
general,
particular.
Currently,
several
strategies
have
applied
to
combat
infection
pathogens,
one
them
the
use
eco-friendly
chemical
compounds
induce
systemic
resistance.
Few
studies
addressed
biocontrol
agent
diseases
caused
viruses.
Exogenous
treatments
used
reduce
incidence
virus
diseases,
reducing
symptoms,
titer,
even
eradicating
proliferation
Tobacco
Mosaic
Virus,
Apple
Stem
Grooving
Rice
Stripe
Virus
Alfalfa
tomato,
apple,
rice
eggplant,
respectively.
The
possibilities
using
possible
natural
are
discussed.
Journal of Advanced Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 1, 2025
Crop
straws
provide
substantial
biomass
resources
that
are
transformable
for
sustainable
biofuels
and
valuable
bioproducts.
However,
the
natural
lignocellulose
recalcitrance
results
in
an
expensive
process
secondary
waste
liberation.
As
lignin
is
a
major
recalcitrant
factor,
genetic
engineering
of
biosynthesis
increasingly
being
implemented
bioenergy
crops,
but
much
remains
unclear
about
desired
alteration
resulting
function.
This
study
attempted
to
explore
mechanisms
modification
responsible
efficient
conversion
vitro
effective
plant
anti-oxidation
response
vivo.
We
initially
selected
specific
rice
mutants
by
performing
modern
CRISPR/cas9
editing
with
caffeic
acid
O-methyltransferase
involved
synthetic
pathways
monolignols
(G,
S)
ferulic
(FA),
then
explored
cadmium
(Cd)
accumulation
using
advanced
chemical,
biochemical
thermal-chemical
analyses.
Notable
was
achieved
from
predominately
synergistic
down-regulation
S-monomer
synthesis
three
mutants.
consequently
upgraded
porosity
up
1.8
folds
account
significantly
enhanced
saccharification
bioethanol
production
20
%-26
%
relative
wild-type.
The
modified
also
favors
dissection
diverse
nanoparticles
dimensions
reduced
1.5-1.9
folds,
applicable
into
carbon
quantum
dots
increased
yields
15
31
%.
proportions
G-monomers
FA
were
mutants,
extractions
further
assayed
higher
activities
two
standard
antioxidants
(DPPH
ABTS)
compared
wild-type,
revealing
distinctively
antioxidative
capacity
Water
culture
showed
young
mutant
seedlings
accumulated
more
Cd
than
wild-type
did
(p
<
0.01,
n
=
3),
suggesting
heavy
metal
phytoremediation
A
hypothetical
model
characteristic
reduction,
accountable
improved
recalcitrance,
proposed.
It
provides
powerful
strategy
achieving
high-yield
value-added
bioproducts
or
enhancing
phytoremediation.
PLANT PHYSIOLOGY,
Journal Year:
2025,
Volume and Issue:
197(2)
Published: Feb. 1, 2025
Abstract
Wild
citrus
(Citrus
L.)
exhibits
high
disease
resistance
accompanied
by
high-acidity
fruit,
whereas
cultivated
produces
tastier
fruit
but
is
more
susceptible
to
disease.
This
a
common
phenomenon,
the
underlying
molecular
mechanisms
remain
unknown.
Citrus
PH4
(CitPH4)
key
transcription
factor
promoting
citric
acid
accumulation
in
fruits.
Accordingly,
CitPH4
expression
decreased
during
domestication,
along
with
reduction
levels.
Here,
we
demonstrate
that
CitPH4-knockout
mutant
an
acidless
phenotype
and
displays
substantially
lower
diseases.
Metabolome
transcriptome
analyses
of
CitPH4-overexpressing
callus,
Arabidopsis,
fruits
revealed
quercetin,
pipecolic
(Pip),
N-hydroxypipecolic
(NHP)
are
pivotal
defense-related
metabolites.
Application
quercetin
Pip
inhibited
growth
Xcc
Penicillium
italicum,
while
NHP
P.
italicum
Huanglongbing.
Biochemical
experiments
demonstrated
enhances
biosynthesis
genes
binding
their
promoters.
Moreover,
contents
were
positively
associated
content
pulp
from
natural
populations.
Finally,
heterologous
Arabidopsis
promoted
stress
response
enhanced
its
fungal
pathogen
Botrytis
cinerea.
The
overexpression
tobacco
(Nicotiana
tabacum)
resistance.
study
reveals
mechanism
which
regulates
acidity,
providing
conceptual
strategy
control
acidity
devastating
International Journal of Molecular Sciences,
Journal Year:
2019,
Volume and Issue:
20(24), P. 6200 - 6200
Published: Dec. 9, 2019
Melatonin,
an
amine
hormone
highly
conserved
during
evolution,
has
a
wide
range
of
physiological
functions
in
animals
and
plants.
It
is
involved
plant
growth,
development,
maturation,
aging,
also
helps
ameliorate
various
types
abiotic
biotic
stresses,
including
salt,
drought,
heavy
metals,
pathogens.
Melatonin-related
growth
defense
responses
plants
are
complex,
involve
many
signaling
molecules.
Among
these,
the
most
important
one
nitric
oxide
(NO),
freely
diffusing
amphiphilic
biomolecule
that
can
easily
cross
cell
membrane,
produce
rapid
signal
responses,
participate
variety
reactions.
NO-induced
S-nitrosylation
responses.
NO
interacts
with
melatonin
as
long-range
molecule,
regulate
maintain
oxidative
homeostasis.
Exposure
to
stresses
causes
increase
endogenous
levels,
consequent
up-regulation
synthesis
genes,
further
content.
The
application
exogenous
defense-related
transcription
factors,
resulting
enhanced
stress
resistance.
When
infected
by
pathogenic
bacteria,
acts
downstream
lead
increased
which
turn
induces
mitogen-activated
protein
kinase
(MAPK)
cascade
associated
promote
sugar
glycerol
production,
leading
levels
salicylic
acid
NO.
Melatonin
function
cooperatively
lateral
root
delay
iron
deficiency.
Further
studies
needed
clarify
certain
aspects
melatonin/NO
relationship
physiology.
