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.
PLoS ONE,
Год журнала:
2020,
Номер
15(1), С. e0228241 - e0228241
Опубликована: Янв. 31, 2020
Melatonin
(MT;
N-acetyI-5-methoxytryptamine)
is
an
amine
hormone
involved
in
abiotic
stress
resistance.
Previous
studies
have
confirmed
that
melatonin
can
promote
seed
germination,
mediate
physiological
regulation
mechanisms,
and
stimulate
crop
growth
under
stress.
However,
the
osmotic
mechanism
by
which
exogenous
mediates
salt
tolerance
cotton
still
largely
unknown.
To
investigate
effect
of
on
concentration
germinating
seeds,
we
analyzed
content
over
time
during
germination
different
treatments.
reached
its
minimum
at
day
6,
while
rates
peaked
indicating
are
correlated.
Then
investigated
effects
10-100
μM
treatments
membrane
lipid
peroxides
adjustment
substances
Salt
led
to
electrolyte
leakage
(EL)
as
well
accumulations
hydrogen
peroxide
(H2O2),
malondialdehyde
(MDA),
organic
(i.e.,
proline,
soluble
sugars),
inorganic
Na+,
Cl-).
Meanwhile,
contents
melatonin,
proteins,
K+
K+/Na+
balance
decreased,
inhibited
synthesis
damaged
cellular
membranes,
seriously
affecting
germination.
pretreatment
concentrations
alleviated
adverse
seeds
reduced
EL
H2O2,
MDA,
Cl-.
The
application
also
promoted
sugar,
These
results
demonstrate
supplemental
effectively
ameliorate
repression
enhancing
regulating
adjusting
ion
homeostasis
Thus,
may
potentially
be
used
protect
from
stress,
with
20
treatment
most
promoting
improving
tolerance.
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.
