International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(17), С. 9249 - 9249
Опубликована: Авг. 26, 2024
Drought
stress
(DS)
is
one
of
the
abiotic
stresses
that
plants
encounter
commonly
in
nature,
which
affects
their
life,
reduces
agricultural
output,
and
prevents
crops
from
growing
certain
areas.
To
enhance
plant
tolerance
against
DS,
abundant
exogenous
substances
(ESs)
have
been
attempted
proven
to
be
effective
helping
relieve
DS.
Understanding
effect
each
ES
on
alleviation
DS
mechanisms
involved
relieving
process
has
become
a
research
focus
hotspot
drawn
much
attention
field
botany,
agronomy,
ecology.
With
an
extensive
comprehensive
review
summary
hundred
publications,
this
paper
groups
various
ESs
based
individual
effects
alleviating
plant/crop
with
details
underlying
DS-relieving
of:
(1)
synthesizing
more
osmotic
adjustment
substances;
(2)
improving
antioxidant
pathways;
(3)
promoting
photosynthesis;
(4)
nutritional
status;
(5)
regulating
phytohormones.
Moreover,
detailed
discussion
perspective
are
given
terms
how
meet
challenges
imposed
by
erratic
severe
droughts
agrosystem
through
using
promising
right
way
at
time.
Plants,
Год журнала:
2022,
Номер
11(13), С. 1674 - 1674
Опубликована: Июнь 24, 2022
Maize
is
the
third
most
common
cereal
crop
worldwide,
after
rice
and
wheat,
plays
a
vital
role
in
preventing
global
hunger
crises.
Approximately
50%
of
yields
are
reduced
by
drought
stress.
Bacteria
as
biostimulants
for
biopriming
can
improve
yield
enhance
sustainable
food
production.
Further,
seed
stimulates
plant
defense
mechanisms.
In
this
study,
we
isolated
bacteria
from
rhizosphere
Artemisia
plants
Pohang
beach,
Daegu,
South
Korea.
Twenty-three
isolates
were
screened
growth
promoting
potential.
Among
them,
bacterial
isolate
SH-6
was
selected
based
on
maximum
induced
tolerance
to
polyethylene
glycol-simulated
drought.
showed
ABA
concentration
=
1.06
±
0.04
ng/mL,
phosphate
solubilizing
index
3.7,
sucrose
0.51
0.13
mg/mL.
The
novel
markedly
enhanced
maize
seedling
oxidative
stress
owing
presence
superoxide
dismutase,
catalase,
ascorbate
peroxidase
activities
culture
media.
Additionally,
quantified
standardized
effect
seeds.
significantly
increased
up
20%,
resulting
80%
germination
We
concluded
that
bacterium
(gene
accession
number
(OM757882)
biostimulant
performance
under
Communications in Soil Science and Plant Analysis,
Год журнала:
2023,
Номер
55(5), С. 735 - 758
Опубликована: Ноя. 10, 2023
Water
deficit
is
the
major
constraint
among
all
stresses,
which
affects
agricultural
production
worldwide.
Food
getting
reduced
due
to
drought
stress
unable
feed
an
ever-increasing
population.
The
development
of
drought-resistant
plant
varieties
or
transgenic
plants
increase
food
costly
and
time-consuming,
also
fully
adoption
new
technique
not
acceptable,
so
any
sustainable
way
required.
use
growth
promoting
rhizobacteria
(PGPR)
for
improvement
under
environmental
a
inexpensive
way.
PGPRs
provide
various
direct
mechanisms
like
phytohormone
synthesis,
phosphate
solubilization,
nitrogen
fixation,
exopolysaccharide
as
well
indirect
hydrogen
cyanide,
1-aminocyclopropane-1-carboxylate
deaminase,
siderophore,
antibiotics
enhances
stress.
Due
their
multiple
traits,
search
suitable
rhizosphere-competent
PGPR
becomes
interesting
can
be
used
inoculants
biofertilization
biocontrol
purposes
in
agriculture,
forestry,
rehabilitation.
Plant Stress,
Год журнала:
2024,
Номер
11, С. 100424 - 100424
Опубликована: Март 1, 2024
Drought
stress
severely
affects
the
physiology
and
metabolism
of
plants.
Fortunately,
using
plant
growth-promoting
bacteria
can
provide
an
environmentally
friendly
solution.
Hence,
present
experiment
was
conducted
on
sorghum
for
drought
amelioration
by
utilizing
Bacillus
sp.
Pseudacidovorax
intermedius
bacterization
to
seeds
under
greenhouse
conditions.
induced
withholding
water
after
52
days
emergence
(flowering
stage).
However,
inoculation
could
significantly
improve
tolerance
capacity
through
production
different
antioxidant
enzymes
metabolites
in
plants
recovery
The
results
declared
that
reduced
membrane
leakage
37%
minimizing
malondialdehyde
(49
&
47%)
hydrogen
peroxide
(32
36%)
content.
In
addition
protecting
leakage,
bacterial
positively
modulates
namely
catalase,
ascorbate
peroxidase,
glutathione
superoxide
dismutase,
phenol
content
system.
Metabolomic
revealed
consortia
up
regulate
carboxylic
acid,
organic,
amino
acids
biomolecules
expression
inside
inoculated
study
concluded
is
assured
technology
mitigating
effect
compounds,
leaf
during
Further,
research
needs
comprehend
underlying
molecular
mechanism
bacterial-induced
drought-tolerant
It
will
also
create
a
road
map
develop
bestselling
bioinoculant
climate-smart
agriculture.
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(17), С. 9249 - 9249
Опубликована: Авг. 26, 2024
Drought
stress
(DS)
is
one
of
the
abiotic
stresses
that
plants
encounter
commonly
in
nature,
which
affects
their
life,
reduces
agricultural
output,
and
prevents
crops
from
growing
certain
areas.
To
enhance
plant
tolerance
against
DS,
abundant
exogenous
substances
(ESs)
have
been
attempted
proven
to
be
effective
helping
relieve
DS.
Understanding
effect
each
ES
on
alleviation
DS
mechanisms
involved
relieving
process
has
become
a
research
focus
hotspot
drawn
much
attention
field
botany,
agronomy,
ecology.
With
an
extensive
comprehensive
review
summary
hundred
publications,
this
paper
groups
various
ESs
based
individual
effects
alleviating
plant/crop
with
details
underlying
DS-relieving
of:
(1)
synthesizing
more
osmotic
adjustment
substances;
(2)
improving
antioxidant
pathways;
(3)
promoting
photosynthesis;
(4)
nutritional
status;
(5)
regulating
phytohormones.
Moreover,
detailed
discussion
perspective
are
given
terms
how
meet
challenges
imposed
by
erratic
severe
droughts
agrosystem
through
using
promising
right
way
at
time.
