Agronomy,
Год журнала:
2020,
Номер
10(11), С. 1683 - 1683
Опубликована: Окт. 30, 2020
Drylands
are
stressful
environment
for
plants
growth
and
production.
Plant
growth-promoting
rhizobacteria
(PGPR)
acts
as
a
rampart
against
the
adverse
impacts
of
drought
stress
in
drylands
enhances
plant
is
helpful
agricultural
sustainability.
PGPR
improves
tolerance
by
implicating
physio-chemical
modifications
called
rhizobacterial-induced
endurance
resilience
(RIDER).
The
RIDER
response
includes;
alterations
phytohormonal
levels,
metabolic
adjustments,
production
bacterial
exopolysaccharides
(EPS),
biofilm
formation,
antioxidant
resistance,
including
accumulation
many
suitable
organic
solutes
such
carbohydrates,
amino
acids,
polyamines.
Modulation
moisture
status
these
PGPRs
one
primary
mechanisms
regulating
growth,
but
studies
on
their
effect
survival
scarce
sandy/desert
soil.
It
was
found
that
inoculated
showed
high
to
water-deficient
conditions
delaying
dehydration
maintaining
plant’s
water
at
an
optimal
level.
had
recovery
rate
after
rewatering
interms
similar
biomass
flowering
compared
non-stressed
plants.
These
enhance
also
elicit
induced
systemic
resistance
scarcity.
root
architecture,
thereby
improving
nutrient
uptake.
promoted
stress-responsive
metabolites
sugars,
sugar
alcohols.
play
substantial
role
development
strengthen
defensive
system
various
biotic
abiotic
stresses,
particular
stress.
Frontiers in Plant Science,
Год журнала:
2018,
Номер
9
Опубликована: Окт. 23, 2018
Microbes
of
the
phytomicrobiome
are
associated
with
every
plant
tissue
and,
in
combination
form
holobiont.
Plants
regulate
composition
and
activity
their
bacterial
community
carefully.
These
microbes
provide
a
wide
range
services
benefits
to
plant;
return,
provides
microbial
reduced
carbon
other
metabolites.
Soils
generally
moist
environment,
rich
which
supports
extensive
soil
communities.
The
rhizomicrobiome
is
great
importance
agriculture
owing
diversity
root
exudates
cell
debris
that
attract
diverse
unique
patterns
colonization.
play
key
roles
nutrient
acquisition
assimilation,
improved
texture,
secreting
modulating
extracellular
molecules
such
as
hormones,
secondary
metabolites,
antibiotics
various
signal
compounds,
all
leading
enhancement
growth.
compounds
they
secrete
constitute
valuable
biostimulants
pivotal
stress
responses.
Research
has
demonstrated
inoculating
plants
plant-growth
promoting
rhizobacteria
(PGPR)
or
treating
microbe-to-plant
can
be
an
effective
strategy
stimulate
crop
Furthermore,
these
strategies
improve
tolerance
for
abiotic
stresses
(egs.
drought,
heat,
salinity)
likely
become
more
frequent
climate
change
conditions
continue
develop.
This
discovery
resulted
multifunctional
PGPR-based
formulations
commercial
agriculture,
minimize
use
synthetic
fertilizers
agrochemicals.
review
update
about
role
PGPR
from
collection
commercialization
low-cost
agricultural
inputs.
First,
we
introduce
concept
context
underlying
food
security
21st
century.
Next,
mechanisms
growth
promotion
by
discussed,
including
exchange
between
roots
how
relationships
modulate
responses
via
induced
systemic
resistance.
On
application
side,
discussed
rhizosphere
colonization
inoculants.
final
sections
paper
describe
applications
century
roadmap
technology.
Science,
Год журнала:
2020,
Номер
368(6488), С. 270 - 274
Опубликована: Апрель 16, 2020
Root-associated
microbes
can
improve
plant
growth,
and
they
offer
the
potential
to
increase
crop
resilience
future
drought.
Although
our
understanding
of
complex
feedbacks
between
microbial
responses
drought
is
advancing,
most
knowledge
comes
from
non-crop
plants
in
controlled
experiments.
We
propose
that
research
efforts
should
attempt
quantify
relationships
traits,
explicitly
focus
on
food
crops,
include
longer-term
experiments
under
field
conditions.
Overall,
we
highlight
need
for
improved
mechanistic
during,
particularly
after,
This
requires
integrating
ecology
with
plant,
microbiome,
molecular
approaches
central
making
production
more
resilient
climate.
Physiologia Plantarum,
Год журнала:
2020,
Номер
172(2), С. 1321 - 1335
Опубликована: Дек. 6, 2020
Abstract
Drought
stress,
which
causes
a
decline
in
quality
and
quantity
of
crop
yields,
has
become
more
accentuated
these
days
due
to
climatic
change.
Serious
measures
need
be
taken
increase
the
tolerance
plants
acute
drought
conditions
likely
occur
global
warming.
stress
many
physiological
biochemical
changes
plants,
rendering
maintenance
osmotic
adjustment
highly
crucial.
The
degree
plant
resistance
varies
with
species
cultivars,
phenological
stages
plant,
duration
exposure
stress.
Osmoregulation
under
low
water
potential
relies
on
synthesis
accumulation
osmoprotectants
or
osmolytes
such
as
soluble
proteins,
sugars,
sugar
alcohols,
quaternary
ammonium
compounds,
amino
acids,
like
proline.
This
review
highlights
role
water‐stressed
enzymes
entailed
their
metabolism.
It
will
useful,
especially
for
researchers
working
development
drought‐resistant
crops
by
using
metabolic‐engineering
techniques.
Frontiers in Plant Science,
Год журнала:
2018,
Номер
8
Опубликована: Янв. 12, 2018
The
application
of
microbial
inoculants
(biofertilizers)
is
a
promising
technology
for
future
sustainable
farming
systems
in
view
rapidly
decreasing
phosphorus
stocks
and
the
need
to
more
efficiently
use
available
nitrogen
(N).
Various
taxa
are
currently
used
as
biofertilizers,
based
on
their
capacity
access
nutrients
from
fertilizers
soil
stocks,
fix
atmospheric
nitrogen,
improve
water
uptake
or
act
biocontrol
agents.
Despite
existence
considerable
knowledge
effects
specific
comprehensive
quantitative
assessment
performance
biofertilizers
with
different
traits
such
solubilization
N
fixation
applied
various
crops
at
global
scale
missing.
We
conducted
meta-analysis
quantify
benefits
terms
yield
increase,
efficiency,
171
peer
reviewed
publications
that
met
eligibility
criteria.
Major
findings
are:
(i)
superiority
biofertilizer
dry
climates
over
other
climatic
regions
(yield
response:
climate
+20.0
±
1.7%,
tropical
+14.9
1.2%,
oceanic
+10.0
3.7%,
continental
+8.5
2.4%);
(ii)
meta-regression
analyses
revealed
response
due
was
generally
small
low
P
levels;
efficacy
increased
along
higher
levels
order
arbuscular
mycorrhizal
fungi
(AMF),
solubilizers,
fixers;
(iii)
meta-regressions
showed
success
inoculation
AMF
greater
organic
matter
content
neutral
pH.
Our
analysis
provides
basis
guidance
proper
choice
biofertilizers.
International Journal of Molecular Sciences,
Год журнала:
2022,
Номер
23(3), С. 1084 - 1084
Опубликована: Янв. 19, 2022
Drought
is
one
of
the
major
constraints
to
rain-fed
agricultural
production,
especially
under
climate
change
conditions.
Plants
evolved
an
array
adaptive
strategies
that
perceive
stress
stimuli
and
respond
these
signals
through
specific
mechanisms.
Abscisic
acid
(ABA)
a
premier
signal
for
plants
drought
plays
critical
role
in
plant
growth
development.
ABA
triggers
variety
physiological
processes
such
as
stomatal
closure,
root
system
modulation,
organizing
soil
microbial
communities,
activation
transcriptional
post-transcriptional
gene
expression,
metabolic
alterations.
Thus,
understanding
mechanisms
ABA-mediated
responses
ensuring
crop
yield
global
food
security.
In
this
review,
we
highlighted
how
adjust
perception,
levels
ABA-
drought-related
genes,
regulation
pathways
alter
at
both
cellular
whole
level.
Understanding
synergetic
will
strengthen
our
knowledge
develop
stress-resilient
crops
integrated
advanced
biotechnology
approaches.
This
review
elaborate
on
genetic,
biochemical,
molecular
plants,
which
advancement
biology
research.
Ecology Letters,
Год журнала:
2018,
Номер
21(8), С. 1268 - 1281
Опубликована: Июнь 12, 2018
Plants
interact
simultaneously
with
each
other
and
soil
biota,
yet
the
relative
importance
of
competition
vs.
plant-soil
feedback
(PSF)
on
plant
performance
is
poorly
understood.
Using
a
meta-analysis
38
published
studies
150
species,
we
show
that
effects
interspecific
(either
growing
plants
competitor
or
singly,
comparing
inter-
intraspecific
competition)
PSF
(comparing
home
away
soil,
live
sterile
control
fungicide-treated
soil)
depended
treatments
but
were
predominantly
negative,
broadly
comparable
in
magnitude,
additive
synergistic.
Stronger
competitors
experienced
more
negative
than
weaker
when
controlling
for
density
(inter-
to
competition),
suggesting
could
prevent
competitive
dominance
promote
coexistence.
When
was
measured
against
strength
overwhelmed
PSF,
indicating
may
depend
not
only
neighbour
identity
also
density.
We
evaluate
how
PSFs
might
across
resource
gradients;
will
likely
strengthen
interactions
high
environments
enhance
facilitative
low-resource
environments.
Finally,
provide
framework
filling
key
knowledge
gaps
advancing
our
understanding
these
biotic
influence
community
structure.