Physiologia Plantarum,
Год журнала:
2024,
Номер
176(6)
Опубликована: Ноя. 1, 2024
Rapeseed
(Brassica
napus
L.)
is
a
globally
significant
oilseed
crop
with
high
economic
value.
However,
water
deficit
significantly
limits
its
growth
and
productivity.
Exopolysaccharides
(EPS)-producing
bacteria
offer
promising
strategy
to
counteract
drought
stress,
leveraging
their
retention
capabilities
plant
growth-promoting
(PGP)
properties.
This
study
was
conducted
characterize
the
PGP
traits
of
selected
EPS-producing
strains
evaluate
efficacy
in
enhancing
rapeseed
resilience
under
conditions.
Among
five
evaluated,
Pseudomonas
protegens
ML15
for
best
performance.
strain
demonstrated
range
traits,
such
as
solubilization
phosphate,
potassium,
zinc,
alongside
production
ammonia,
siderophores,
proline.
It
also
exhibited
antioxidant
activity
ability
form
biofilms,
even
water-stressed
Inoculation
increased
germination
percentages
seedling
length.
Notably,
whether
plants
were
subjected
drought-induced
stress
or
maintained
normal
conditions,
treatment
P.
inoculation
consistently
improved
length
overall
biomass.
Under
drought-stressed
inoculated
reduced
malondialdehyde
levels
vegetation
indices,
chlorophyll,
protein,
proline,
phenolic
content.
They
showed
enhanced
enzymes,
catalase
peroxidase,
compared
uninoculated
plants.
These
findings
underscore
potential
like
mitigate
plants,
providing
ecological
benefits
that
support
agricultural
sustainability.
Environmental Microbiome,
Год журнала:
2025,
Номер
20(1)
Опубликована: Фев. 3, 2025
Plant
endophytes,
comprising
non-pathogenic
bacteria,
fungi,
and
archaea,
inhabit
various
plant
parts,
including
roots,
stems,
leaves,
seeds.
These
microorganisms
play
a
crucial
role
in
development
by
enhancing
germination,
growth,
stress
resilience.
Seed
particular,
represent
the
most
adapted
conserved
segment
of
microbiota,
significantly
influencing
initial
stages
growth
microbial
community
establishment.
This
study
investigates
impact
environmental
genotypic
factors
on
endophytic
communities
Chenopodium
quinoa
Willd.
(quinoa),
crop
notable
for
its
adaptability
nutritional
value.
We
aimed
to
characterize
core
seeds
roots
from
two
distinct
genotypes
under
well-watered
(WW)
water-deficit
(WD)
conditions,
utilizing
soil
infusions
as
inoculants
explore
potential
changes
these
endophytes.
Our
findings
reveal
with
exhibiting
high
degree
conservation
their
microbiome,
even
between
maternal
offspring
seeds,
specific
bacterial
taxa
showing
only
minor
differences.
Tissue
specificity
emerged
key
factor,
maintaining
stable
community,
while
exhibited
more
pronounced
shifts,
highlighting
tissue-dependent
patterns
enrichment.
The
results
highlight
stability
varying
water
conditions
across
different
genotypes,
emphasizing
tissue
shaping
associations.
suggest
that
quinoa-associated
particularly
those
may
drought
Understanding
dynamics
plant-microbe
interactions
is
vital
developing
stress-resilient
varieties,
supporting
sustainable
agricultural
practices,
ensuring
food
security
face
climate
change
challenges.
Plants,
Год журнала:
2024,
Номер
13(2), С. 158 - 158
Опубликована: Янв. 6, 2024
Drought
is
a
major
challenge
for
agriculture
worldwide,
being
one
of
the
main
causes
losses
in
plant
production.
Various
studies
reported
that
some
soil's
bacteria
can
improve
tolerance
to
environmental
stresses
by
enhancement
water
and
nutrient
uptake
plants.
The
Atacama
Desert
Chile,
driest
place
on
earth,
harbors
largely
unexplored
microbial
richness.
This
study
aimed
evaluate
ability
various
Journal of Agricultural and Food Chemistry,
Год журнала:
2023,
Номер
71(49), С. 19165 - 19188
Опубликована: Ноя. 29, 2023
Rhizosphere
microbial
colonization
of
the
tea
plant
provides
many
beneficial
functions
for
host,
But
factors
that
influence
composition
these
rhizosphere
microbes
and
their
are
still
unknown.
In
order
to
explore
interaction
between
plants
microorganisms,
we
summarized
current
studies.
First,
review
integrated
known
communities
tree,
including
bacteria,
fungi,
arbuscular
mycorrhizal
fungi.
Then,
various
affecting
microorganisms
were
studied,
including:
endogenous
factors,
environmental
agronomic
practices.
Finally,
analyzed,
(a)
promoting
growth
quality
trees,
(b)
alleviating
biotic
abiotic
stresses,
(c)
improving
soil
fertility.
highlight
gaps
in
knowledge
future
direction
development.
summary,
understanding
interactions
with
is
key
growth,
development,
sustainable
productivity
plants.
Agronomy,
Год журнала:
2025,
Номер
15(4), С. 915 - 915
Опубликована: Апрель 8, 2025
Water
stress
is
a
major
limiting
factor
in
agriculture,
particularly
the
Mediterranean
region,
where
climate
change
exacerbates
drought
conditions.
Soil
microbiome
composition
plays
crucial
role
plant
resilience
to
environmental
stressors,
water
scarcity
and
excess.
This
study
examines
impact
of
different
irrigation
regimes
(optimal,
severe
deficit,
excess)
on
tomato
soil
physiology
context.
Metataxonomic
profiling
revealed
significant
shifts
microbial
community
structure:
Proteobacteria
dominated
under
optimal
(WO),
Acidobacteria
deficit
(WD),
Actinobacteria
both
excess
(WE).
Functional
analysis
indicated
irrigation-induced
alterations
metabolic
pathways,
influencing
nutrient
cycling.
respiration
varied,
peaking
WE
condition.
Plant
physiological
responses,
including
gas
exchange
Proline
content,
were
significantly
affected
by
stress.
An
inverse
correlation
was
observed
between
diversity
chlorophyll
suggesting
link
responses
composition.
underscores
for
first
time
intricate
relationship
availability
dynamics,
emphasizing
importance
microbiome-driven
resilience,
thus
showing
this
be
key
agricultural
sustainability
changing
climatic
Plants,
Год журнала:
2025,
Номер
14(8), С. 1236 - 1236
Опубликована: Апрель 18, 2025
Drought
stress
is
one
of
the
key
environmental
factors
restricting
germination
alfalfa
seeds
(Medicago
sativa
L.).
Nanopriming
an
innovative
seed-priming
technology
able
to
meet
economic,
agronomic,
and
needs
in
agriculture.
However,
use
conventional
nanomaterials
hampered
by
high
costs,
risks,
biotoxicity.
In
this
study,
we
synthesized
iron
oxide
nanoparticles
(Fe3O4NPs)
using
seasonal
Ginkgo
biloba
leaf
extracts
(collected
from
August
November)
obtained
via
enzymatic
ultrasonic-assisted
method.
The
Fe3O4NPs
were
characterized
SEM,
EDS,
DLS,
FTIR,
UV-Vis,
XRD.
To
investigate
effects
Fe3O4NP
priming
on
seed
under
drought
stress,
pot
experiments
conducted
with
five
concentrations
(unprimed,
0,
20,
40,
60
mg/L)
three
PEG-6000
(0%,
10%,
15%)
simulate
normal,
moderate,
severe
conditions.
results
showed
that
collected
November
exhibited
highest
flavonoid
content
(12.8
mg/g),
successfully
yielding
bioactive-capped
spherical
a
particle
size
369.5
±
100.6
nm.
Germination
revealed
(15%
PEG-6000),
40
mg/L
treatment
most
effectively
enhanced
vigor,
increasing
rate,
vigor
index,
α-amylase
activity
22.1%,
189.4%,
35.5%
(p
<
0.05),
respectively,
compared
controls.
Under
moderate
(10%
20
optimally
improved
traits,
rate
25.5%
seedling
elongation
115.6%.
demonstrated
morphological
adaptations
seedlings:
significantly
increased
lateral
root
numbers,
while
surface
area
20.5%
preserved
roots’
structural
integrity
These
findings
highlight
ultrasonic
methods
exhibit
promising
agricultural
potential.
optimal
resistance
modulating
morphology,
concentration-specific
efficacy
varying
intensities.
Microbial Biotechnology,
Год журнала:
2023,
Номер
16(12), С. 2326 - 2344
Опубликована: Сен. 15, 2023
Abstract
Drought
is
among
the
main
abiotic
factors
causing
agronomical
losses
worldwide.
To
minimize
its
impact,
several
strategies
have
been
proposed,
including
use
of
plant
growth‐promoting
bacteria
(PGPBs),
as
they
demonstrated
roles
in
counteracting
stress.
This
aspect
has
little
explored
emergent
crops
such
quinoa,
which
potential
to
contribute
reducing
food
insecurity.
Thus,
here
we
hypothesize
that
genotype,
water
environment
and
type
inoculant
are
determining
shaping
quinoa
rhizosphere
bacterial
communities,
affecting
performance.
address
this,
two
different
cultivars
(with
contrasting
stress
tolerance),
conditions
(optimal
limiting
conditions)
soil
infusions
were
used
define
relevance
these
factors.
Different
families
vary
genotypes
identified.
Certain
enriched
under
conditions,
Nocardioidaceae,
highly
present
water‐sensitive
cultivar
F15,
or
Pseudomonadaceae,
Burkholderiaceae
Sphingomonadaceae,
more
abundant
tolerant
F16,
also
showed
larger
total
polyphenol
content.
These
changes
demonstrate
genotype
root‐inhabiting
suggest
this
species
a
great
source
PGPBs
for
utilization
water‐liming
conditions.
Frontiers in Plant Science,
Год журнала:
2023,
Номер
14
Опубликована: Дек. 11, 2023
Soil
salinization
is
a
global
environmental
issue
and
significant
abiotic
stress
that
threatens
crop
production.
Root-associated
rhizosphere
microbiota
play
pivotal
role
in
enhancing
plant
tolerance
to
stresses.
However,
limited
information
available
concerning
the
specific
variations
driven
by
different
genotypes
(varieties)
response
varying
levels
of
salinity
stress.
In
this
study,
we
compared
growth
performance
three
alfalfa
varieties
with
salt
soils
degrees
salinization.
High-throughput
16S
rRNA
ITS
sequencing
were
employed
analyze
microbial
communities.
Undoubtedly,
increasing
significantly
inhibited
reduced
diversity.
intriguingly,
salt-tolerant
exhibited
relatively
lower
susceptibility
salinity,
maintaining
more
stable
bacterial
community
structure,
whereas
reverse
was
observed
for
salt-sensitive
varieties.
Bacillus
emerged
as
dominant
species
alfalfa's
adaptation
stress,
constituting
21.20%
shared
genera
among
The
higher
abundance
,
Ensifer
Pseudomonas
crucial
determining
their
elevated
tolerance.
As
increased,
gradually
accumulated
substantial
population
pathogenic
fungi,
such
Fusarium
Rhizoctonia
.
Furthermore,
bacteria
increased
activity
various
metabolic
pathways,
including
biosynthesis
secondary
metabolites,
carbon
metabolism,
amino
acids.
It
suggested
can
provide
sources
rhizosphere,
enriching
effective
growth-promoting
(PGPB)
mitigate
conclusion,
our
results
highlight
variety-mediated
enrichment
confirming
high-abundance
microbes
vital
roles
conferring
high
adaptability
these
