Frontiers in Plant Science,
Год журнала:
2023,
Номер
14
Опубликована: Сен. 11, 2023
Solanaceous
vegetable
crops
are
cultivated
and
consumed
worldwide.
However,
they
often
confront
diverse
abiotic
stresses
that
significantly
impair
their
growth,
yield,
overall
quality.
This
review
delves
into
melatonin
abscisic
acid
(ABA)
biosynthesis
roles
in
stress
responses.
It
closely
examines
the
intricate
interplay
between
ABA
managing
within
plants,
revealing
both
collaborative
antagonistic
effects
elucidating
underlying
molecular
mechanisms.
Melatonin
mutually
influence
each
other’s
synthesis,
metabolism
of
other
plant
hormones,
a
key
focus
this
study.
The
study
highlights
melatonin’s
role
aiding
management
through
ABA-dependent
pathways
genes
melatonin-ABA
interaction.
Specifically,
downregulates
synthesis
upregulates
catabolism
genes,
leading
to
reduced
levels.
also
directly
scavenges
H
2
O
,
enhancing
antioxidant
enzyme
activities,
thereby
underscoring
mediating
Moreover,
plays
an
essential
multiple
physiological
processes
including
stomatal
behaviors,
wax
accumulation,
delay
leaf
senescence,
seed
germination,
seedlings
among
others.
Recognizing
these
relationships
Solanaceae
holds
great
importance
for
improving
agricultural
practices
crop
In
summary,
offers
comprehensive
overview
recent
studies
on
interplay,
serving
as
valuable
resource
researchers
breeders
dedicated
fortifying
resilience
productivity
challenging
environments.
GM crops & food,
Год журнала:
2022,
Номер
13(1), С. 196 - 217
Опубликована: Авг. 19, 2022
Global
climate
changes
cause
extreme
temperatures
and
a
significant
reduction
in
crop
production,
leading
to
food
insecurity
worldwide.
Temperature
extremes
(including
both
heat
cold
stresses)
is
one
of
the
most
limiting
factors
plant
growth
development
severely
affect
physiology,
biochemical,
molecular
processes.
Biostimulants
like
melatonin
(MET)
have
multifunctional
role
that
acts
as
“defense
molecule”
safeguard
plants
against
noxious
effects
temperature
stress.
MET
treatment
improves
tolerance
by
improving
several
defense
mechanisms.
Current
research
also
suggests
interacts
with
other
molecules,
phytohormones
gaseous
which
greatly
supports
adaptation
Genetic
engineering
via
overexpression
or
CRISPR/Cas
system
biosynthetic
genes
uplifts
levels
transgenic
enhances
stress
tolerance.
This
review
highlights
critical
production
We
documented
how
molecules
alleviate
MET-mediated
breeding
would
be
great
potential
helping
adverse
creating
plants.
Journal of Experimental Botany,
Год журнала:
2022,
Номер
73(17), С. 5779 - 5800
Опубликована: Янв. 12, 2022
Phytomelatonin,
a
multifunctional
molecule
that
has
been
found
to
be
present
in
all
plants
examined
date,
an
important
role
as
modulatory
agent
(a
biostimulator)
improves
plant
tolerance
both
biotic
and
abiotic
stress.
We
review
of
phytomelatonin
considers
its
roles
metabolism
particular
interactions
with
hormone
network.
In
the
primary
plants,
melatonin
rate
efficiency
photosynthesis,
well
related
factors
such
stomatal
conductance,
intercellular
CO2,
Rubisco
activity.
It
also
shown
down-regulate
some
senescence
transcription
factors.
Melatonin
up-regulates
many
enzyme
transcripts
carbohydrates
(including
sucrose
starch),
amino
acids,
lipid
metabolism,
optimizing
N,
P,
S
uptake.
With
respect
secondary
clear
increases
polyphenol,
glucosinolate,
terpenoid,
alkaloid
contents
have
described
numerous
melatonin-treated
plants.
Generally,
most
genes
these
biosynthesis
pathways
up-regulated
by
melatonin.
The
great
regulatory
capacity
is
result
control
redox
networks.
acts
master
regulator,
up-/down-regulating
different
levels
signalling,
key
player
homeostasis.
counteract
diverse
critical
situations
pathogen
infections
stresses,
provide
varying
degrees
tolerance.
propose
possible
future
applications
for
crop
improvement
post-harvest
product
preservation.
International Journal of Molecular Sciences,
Год журнала:
2023,
Номер
24(8), С. 7447 - 7447
Опубликована: Апрель 18, 2023
Increasing
food
demand
by
the
growing
human
population
and
declining
crop
productivity
due
to
climate
change
affect
global
security.
To
meet
challenges,
developing
improved
crops
that
can
tolerate
abiotic
stresses
is
a
priority.
Melatonin
in
plants,
also
known
as
phytomelatonin,
an
active
component
of
various
cellular
mechanisms
alleviates
oxidative
damage
hence
supporting
plant
survive
stress
conditions.
Exogenous
melatonin
strengthens
this
defence
mechanism
enhancing
detoxification
reactive
by-products,
promoting
physiological
activities,
upregulating
stress-responsive
genes
alleviate
during
stress.
In
addition
its
well-known
antioxidant
activity,
protects
against
regulating
hormones,
activating
ER
genes,
increasing
protein
homoeostasis,
heat
shock
transcription
factors
proteins.
Under
stress,
enhances
unfolded
response,
endoplasmic
reticulum-associated
degradation,
autophagy,
which
ultimately
protect
cells
from
programmed
cell
death
promotes
repair
resulting
increased
survival.
Frontiers in Plant Science,
Год журнала:
2022,
Номер
13
Опубликована: Июнь 10, 2022
Proline
is
a
proteinogenic
amino
acid
synthesized
from
glutamate
and
ornithine.
Pyrroline-5-carboxylate
synthetase
pyrroline-5-carboxylate
reductase
are
the
two
key
enzymes
involved
in
proline
synthesis
glutamate.
On
other
hand,
ornithine-δ-aminotransferase
converts
ornithine
to
pyrroline
5-carboxylate
(P5C),
an
intermediate
of
as
well
Both
dehydrogenase
P5C
convert
back
accumulation
widespread
response
environmental
challenges
such
high
temperatures,
it
known
defend
plants
against
unpropitious
situations
promoting
plant
growth
flowering.
While
positively
correlated
with
heat
stress
tolerance
some
crops,
has
detrimental
consequences
others.
Although
been
established
that
osmolyte,
its
exact
physiological
function
during
ontogeny
remains
unknown.
Emerging
evidence
pointed
out
role
overriding
molecule
alleviating
temperature
(HTS)
by
quenching
singlet
oxygen
superoxide
radicals.
cycle
acts
shuttle
redox
couple
(NAD
+
/NADH,
NADP
/NADPH)
appears
be
highly
crucial
for
energy
transfer
among
different
cellular
compartments
development,
exposure
HTS
conditions
also
recovery
stress.
In
this
review,
progress
made
recent
years
regarding
involvement
highlighted.