Abstract
Background
Growing
evidence
suggests
that
soil
microbes
can
improve
plant
fitness
under
drought.
However,
in
potato,
the
world’s
most
important
non-cereal
crop,
role
of
rhizosphere
microbiome
drought
has
been
poorly
studied.
Using
a
cultivation
independent
metabarcoding
approach,
we
examined
two
potato
cultivars
with
different
tolerance
as
function
water
regime
(continuous
versus
reduced
watering)
and
manipulation
microbial
diversity
(i.e.,
natural
(NSM),
vs.
disturbed
(DSM)
microbiome).
Results
Water
pre-treatment
showed
significant
interaction
bacterial
community
composition
sensitive
(HERBST)
but
not
resistant
cultivar
(MONI).
Overall,
MONI
had
moderate
response
to
treatments
its
selected
Rhizobiales
watering
NSM
soil,
whereas
Bradyrhizobium
,
Ammoniphilus
Symbiobacterium
unclassified
Hydrogenedensaceae
DSM
soil.
In
contrast,
HERBST
was
more
pronounced.
Notably,
treated
watering,
root
endophytic
fungus
Falciphora
many
Actinobacteriota
members
(
Streptomyces
Glycomyces
Marmoricola
Aeromicrobium
Mycobacterium
others)
were
largely
represented.
treatment
resulted
no
fungal
taxa
fewer
enrichment
these
watering.
Moreover,
number
core
amplicon
sequence
variants
(core
ASVs)
consistent
regardless
regimes
opposed
HERBST,
which
marked
reduction
ASVs
observed
Conclusions
Besides
influence
conditions,
our
results
indicate
strong
cultivar-dependent
relationship
between
their
capacity
respond
perturbations
such
moisture.
Our
study
highlights
importance
integrating
conditions
genetic
variability
key
factors
future
breeding
programs
aiming
develop
resistance
major
food
crop
like
potato.
Elucidating
molecular
mechanisms
how
plants
recruit
from
help
mitigate
stress
identify
taxa,
harbour
respective
traits
might
therefore
be
an
topic
for
research.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Янв. 9, 2024
Abstract
Drought
stress
is
a
worldwide
threat
to
the
productivity
of
crops,
especially
in
arid
and
semi-arid
zones
world.
In
present
study,
effect
selenium
(Se)
seed
priming
on
yield
quinoa
under
normal
drought
conditions
was
investigated.
A
pot
trial
executed
enhance
tolerance
by
Se
(0,
3,
6,
9
mg
L
−1
).
The
plants
were
exposed
water
at
three
different
growth
stages
quinoa,
viz.
multiple
leaf,
flowering,
filling.
It
noticed
that
significantly
affected
components
however,
improved
potential
maintaining
plant
status.
increased
main
panicle
length
(20.29%),
weight
(26.43%),
thousand
grain
(15.41%)
as
well
gas
exchange
parameters
(transpiration
rate
(29.74%),
stomatal
conductance
(35.29%),
photosynthetic
(28.79%),
total
phenolics
(29.36%),
leaf
chlorophyll
contents
(35.97%),
relations
(leaf
relative
(14.55%),
osmotic
(10.32%),
(38.35%),
turgor
(31.37%),
economic
(35.99%)
stress.
Moreover,
markedly
quality
i.e.,
phosphorus,
potassium,
protein
21.28%,
18.92%,
15.04%,
respectively.
principal
component
analysis
connected
various
study
scales
showed
ability
physio-biochemical
factors
describe
fluctuations
response
conditions.
conclusion,
seed-filling
stage
has
far
more
deleterious
impact
among
other
critical
with
(6
)
found
effective
alleviating
detrimental
effects
quinoa.
ACS Omega,
Год журнала:
2023,
Номер
8(25), С. 22575 - 22588
Опубликована: Июнь 12, 2023
Soil
salinization
has
become
a
major
issue
around
the
world
in
recent
years,
as
it
is
one
of
consequences
climate
change
sea
levels
rise.
It
crucial
to
lessen
severe
soil
on
plants.
A
pot
experiment
was
conducted
regulate
physiological
and
biochemical
mechanisms
order
evaluate
ameliorative
effects
potassium
nitrate
(KNO3)
Raphanus
sativus
L.
genotypes
under
salt
stress.
The
results
from
present
study
illustrated
that
salinity
stress
induced
significant
decrease
shoot
length,
root
fresh
weight,
dry
number
leaves
per
plant,
leaf
area
chlorophyll-a,
chlorophyll-b,
total
chlorophyll,
carotenoid,
net
photosynthesis,
stomatal
conductance,
transpiration
rate
by
43,
67,
41,
21,
34,
28,
74,
91,
50,
24,
14,
26,
67%,
respectively,
40
day
radish
while
decreased
61,
49,
19,
31,
27,
70,
81,
16,
11,
62%,
Mino
radish.
Furthermore,
MDA,
H2O2
initiation,
EL
(%)
two
varieties
(40
radish)
R.
increased
significantly
(P
<
0.05)
86,
72%,
roots
also
76,
106,
38%
radish,
compared
untreated
elucidated
contents
phenolic,
flavonoids,
ascorbic
acid,
anthocyanin
with
exogenous
application
KNO3
37%,
grown
controlled
treatments.
Results
indicated
implementing
exogenously
activities
antioxidants
like
SOD,
CAT,
POD,
APX
64,
36,
84%
12,
23,
60%
42,
13,
18,
41%
comparison
those
plants
without
KNO3.
We
found
substantially
improved
plant
growth
lowering
oxidative
biomarkers,
thereby
further
stimulating
antioxidant
potential
system,
which
led
an
nutritional
profile
both
normal
stressed
conditions.
current
would
offer
deep
theoretical
foundation
for
clarifying
improves
tolerance
genotypes.
Sustainability,
Год журнала:
2023,
Номер
15(7), С. 5694 - 5694
Опубликована: Март 24, 2023
Drought
stress
restricts
the
growth
of
okra
(Abelmoschus
esculentus
L.)
by
disrupting
its
biochemical
and
physiological
functions.
The
current
study
was
conducted
to
evaluate
role
selenium
(0,
1,
2,
3
mg
Se
L−1
as
a
foliar
application)
in
improving
tolerance
drought
(control
(100%
field
capacity-FC),
mild
(70%
FC),
severe
(35%
FC))
imposed
30
days
after
sowing
(DAS).
(severe)
markedly
decreased
chlorophyll
(32.21%)
carotenoid
(39.6%)
contents
but
increased
anthocyanin
(40%),
proline
(46.8%),
peroxidase
(POD
12.5%),
ascorbate
(APX
11.9%),
catalase
(CAT
14%)
activities.
Overall,
application
significantly
alleviated
stress-related
disturbances
okra.
Mainly,
(21%)
well
(15.14%),
(18.16%),
antioxidant
activities
both
under
control
conditions.
Selenium
played
beneficial
reducing
damage
caused
oxidative
stress,
enhancing
antioxidants
contents,
improved
plant
stress.
Therefore,
crops
including
especially,
must
be
supplemented
with
for
obtaining
optimum
yield
arid
semiarid
drought-affected
areas.
Scientific Reports,
Год журнала:
2023,
Номер
13(1)
Опубликована: Сен. 11, 2023
Drought
stress
as
a
result
of
rapidly
changing
climatic
conditions
has
direct
negative
impact
on
crop
production
especially
wheat
which
is
the
2nd
staple
food
crop.
To
fulfill
nutritional
demand
under
declining
water
resources,
there
dire
need
to
adopt
precise,
and
efficient
approach
in
form
different
amendments.
In
this
regard,
present
study
investigated
nano-biochar
(NBC)
brassinosteroids
(BR)
enhancing
growth
productivity
drought
conditions.
The
field
comprised
combinations
amendments
(control,
NBC,
BR,
NBC
+
BR)
three
irrigation
levels
(D0,
D1
D2).
Among
treatments,
synergistic
(NBC
resulted
maximum
increase
yield
parameters
normal
well
With
BR),
plant
height
(71.7
cm),
spike
length
(17.1),
number
fertile
tillers
m-2
(410),
no.
spikelets
spike-1
(19.1),
grains
(37.9),
1000
grain
weight
(37
g),
(4079
kg
ha-1),
biological
(10,502
harvest
index
(43.5).
case
physiological
such
leaf
area
index,
relative
contents,
chlorophyll
stomatal
conductance
were
maximally
improved
with
combined
application
BR.
same
treatment
caused
an
54,
10,
7%
N,
P,
K
contents
grains,
respectively
compared
control
treatment.
Similarly,
antioxidant
response
was
enhanced
plants
conclusion,
BR
significant
growth,
attributes
stress.
ACS Omega,
Год журнала:
2023,
Номер
8(23), С. 20471 - 20487
Опубликована: Май 26, 2023
Sustainable
agriculture
is
threatened
by
salinity
stress
because
of
the
low
yield
quality
and
crop
production.
Rhizobacteria
that
promote
plant
growth
modify
physiological
molecular
pathways
to
support
development
reduce
abiotic
stresses.
The
recent
study
aimed
assess
tolerance
capacity
impacts
Bacillus
sp.
PM31
on
growth,
physiological,
responses
maize
stress.
In
comparison
uninoculated
plants,
inoculation
improved
agro-morphological
traits
[shoot
length
(6%),
root
(22%),
height
(16%),
fresh
weight
(39%),
dry
(29%),
leaf
area
(11%)],
chlorophyll
[Chl
a
(17%),
Chl
b
(37%),
total
chl
(22%)],
carotenoids
(15%),
proteins
(40%),
sugars
(43%),
relative
water
(11%),
flavonoids
phenols
(23%),
radical
scavenging
(13%),
antioxidants.
PM31-inoculated
plants
showed
reduction
in
oxidative
indicators
[electrolyte
leakage
(12%),
H2O2
(9%),
MDA
(32%)]
as
compared
under
increased
level
osmolytes
[free
amino
acids
(36%),
glycine
betaine
proline
(11%)].
enhancement
was
further
validated
profiling
PM31.
Moreover,
these
mechanisms
were
accompanied
upregulation
stress-related
genes
(APX
SOD).
Our
found
has
crucial
substantial
role
reducing
through
processes,
which
may
be
used
an
alternative
approach
boost
production
yield.
ACS Omega,
Год журнала:
2023,
Номер
8(25), С. 22788 - 22808
Опубликована: Июнь 15, 2023
Drought
and
osmotic
stresses
are
major
threats
to
agricultural
crops
as
they
affect
plants
during
their
life
cycle.
The
seeds
more
susceptible
these
germination
establishment
of
seedlings.
To
cope
with
abiotic
stresses,
various
seed
priming
techniques
have
broadly
been
used.
present
study
aimed
assess
under
stress.
Osmo-priming
chitosan
(1
2%),
hydro-priming
distilled
water,
thermo-priming
at
4
°C
were
used
on
the
physiology
agronomy
