Microbial Biotechnology,
Год журнала:
2024,
Номер
17(12)
Опубликована: Дек. 1, 2024
Abstract
By
providing
adaptive
advantages
to
plants,
desert
microorganisms
are
emerging
as
promising
solutions
mitigate
the
negative
and
abrupt
effects
of
climate
change
in
agriculture.
Among
these,
pseudomonads,
commonly
found
soil
association
with
plants'
root
system,
have
been
shown
enhance
plant
tolerance
salinity
drought,
primarily
affecting
system
architecture
various
hosts.
However,
a
comprehensive
understanding
how
these
bacteria
affect
responses
at
cellular,
physiological
molecular
levels
is
still
lacking.
In
this
study,
we
investigated
two
Pseudomonas
spp.
strains,
E102
E141,
which
were
previously
isolated
from
date
palm
roots
demonstrated
efficacy
promoting
drought
their
These
strains
colonize
roots,
influencing
by
inhibiting
primary
growth
while
hair
elongation
lateral
formation.
Strains
E141
increased
auxin
Arabidopsis
,
whereas
effect
was
diminished
IAA‐defective
mutant
exhibited
reduced
IAA
production.
all
cases,
effectiveness
relies
on
functioning
response
transport
machinery.
Notably,
such
morphological
changes
provide
an
advantage
plant,
specifically
under
stress
conditions
salinity.
Collectively,
study
demonstrates
that
leveraging
host's
signalling
machinery,
significantly
improve
resilience
abiotic
stresses,
positioning
them
potential
biopromoters/bioprotectors
for
crop
production
ecosystem
restoration
alignment
Nature‐based
Solution
approaches.
International Journal of Molecular Sciences,
Год журнала:
2025,
Номер
26(2), С. 565 - 565
Опубликована: Янв. 10, 2025
Mowing
significantly
influences
nutrient
cycling
and
stimulates
metabolic
adjustments
in
plants
to
promote
regrowth.
Plant
growth-promoting
rhizobacteria
(PGPR)
are
crucial
for
enhancing
plant
growth,
absorption,
stress
resilience;
however,
whether
inoculation
with
PGPR
after
mowing
can
enhance
regrowth
capacity
further,
as
well
its
specific
regulatory
mechanisms,
remains
unexplored.
In
this
study,
Pantoea
eucalyptus
(B13)
was
inoculated
into
mowed
Leymus
chinensis
evaluate
effects
on
phenotypic
traits,
root
contents,
hormone
levels
during
the
process
further
explore
role
of
L.
mowing.
The
results
showed
that
mowing,
sugar
contents
decreased
significantly,
while
signal
pathways
related
hormones
were
activated.
This
indicates
resources
tend
sacrifice
a
part
growth
prioritize
defense.
After
B13
regulated
plant's
internal
balance
by
reducing
JA,
SA,
ABA
upregulated
transduction
root,
thus
optimizing
defense
environment.
Transcriptomic
metabolomic
analyses
indicated
promoted
uptake
transport
maintained
homeostasis,
enhanced
carbohydrates,
energy,
amino
acid
metabolism
cope
stress,
regeneration
shoot.
study
reveals
regenerative
strategy
perennial
forage
grasses,
helping
optimize
resource
utilization,
increase
yield,
grassland
stability
resilience.
Plant Signaling & Behavior,
Год журнала:
2025,
Номер
20(1)
Опубликована: Янв. 16, 2025
Tobacco
(Nicotiana
tabacum)
black
shank
disease,
caused
by
Phytophthora
nicotianae,
is
a
significant
threat
to
tobacco
crops,
leading
severe
economic
losses.
Prolonged
use
of
agrochemicals
control
this
disease
has
prompted
the
exploration
eco-friendly
biological
strategies.
This
study
investigated
effects
Trichoderma
harzianum,
biocontrol
agent,
on
N.
tabacum
in
comparison
P.
focusing
growth,
biomass,
root
morphology
and
anatomy,
hormonal
changes,
osmotic
regulation.
T.
harzianum
significantly
enhanced
plant
biomass
accumulation,
system
development,
physiological
attributes
such
as
photosynthetic
pigment
levels
antioxidant
enzyme
activity.
In
contrast,
nicotianae
negatively
impacted
these
parameters,
inhibiting
growth
function.
Notably,
increased
proline
content
induced
resistance
mechanisms,
mitigating
stress
promoting
overall
health.
These
findings
highlight
potential
sustainable
solution
for
managing
while
improving
crop
productivity.
Journal of Experimental Botany,
Год журнала:
2024,
Номер
75(9), С. 2740 - 2753
Опубликована: Фев. 16, 2024
Abstract
Ascorbic
acid
(AsA)
plays
an
indispensable
role
in
plants,
serving
as
both
antioxidant
and
a
master
regulator
of
the
cellular
redox
balance.
Ascorbate
oxidase
(AO)
is
blue
copper
that
responsible
for
oxidation
AsA
with
concomitant
production
water.
For
many
decades,
AO
was
erroneously
postulated
enzyme
without
any
obvious
advantage,
it
decreases
pool
size
thus
expected
to
weaken
plant
stress
resistance.
It
only
decade
ago
this
perspective
shifted
towards
fundamental
orchestrating
oxygen
levels
by
influencing
overall
balance
extracellular
matrix.
Consistent
its
localization
apoplast,
involved
cell
expansion,
division,
resource
allocation,
yield.
An
increasing
number
transgenic
studies
has
demonstrated
can
also
facilitate
communication
between
surrounding
environment
cell,
gene
expression
highly
responsive
factors
such
hormonal
signaling,
oxidative
stress,
mechanical
injury.
This
review
aims
describe
multiple
functions
growth,
development,
resilience,
explore
additional
roles
might
have
fruits
during
course
ripening.
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(20), С. 11135 - 11135
Опубликована: Окт. 17, 2024
Blueberries
(Vaccinium
spp.)
are
extremely
sensitive
to
drought
stress.
Flavonoids
crucial
secondary
metabolites
that
possess
the
ability
withstand
Therefore,
improving
resistance
of
blueberries
by
increasing
flavonoid
content
is
for
development
blueberry
industry.
To
explore
underlying
molecular
mechanism
in
adaptation
stress,
we
performed
an
integrated
analysis
metabolome
and
transcriptome
leaves
under
We
found
most
enriched
drought-responsive
genes
mainly
involved
biosynthesis
plant
hormone
signal
transduction
pathways
based
on
data
main
come
from
class
data.
The
UDP-glucose
3-O-glucosyl
transferase
(UFGT),
flavonol
synthase
(FLS),
anthocyanidin
reductase
(ANR-2)
may
be
key
accumulation
anthocyanins,
flavonols,
flavans
response
stress
leaves,
respectively.
Delphinidin
3-glucoside
delphinidin-3-O-glucoside
chloride
important
metabolites.
VcMYB1,
VcMYBPA1,
MYBPA1.2,
MYBPA2.1
might
responsible
drought-induced
VcMYB14,
MYB14,
MYB102,
MYB108
leaf
tolerance.
ABA
responsive
elements
binding
factor
(ABF)
genes,
MYB
bHLH
biosynthetic
form
a
regulatory
network
regulate
leaves.
Our
study
provides
useful
reference
breeding
drought-resistant
varieties.
International Journal of Molecular Sciences,
Год журнала:
2024,
Номер
25(4), С. 2187 - 2187
Опубликована: Фев. 11, 2024
Drought
stress
is
a
major
abiotic
factor
affecting
tomato
production
and
fruit
quality.
However,
the
genes
metabolites
associated
with
responses
to
water
deficiency
rehydration
are
poorly
characterized.
To
identify
functional
key
metabolic
pathways
underlying
drought
recovery,
drought-susceptible
drought-tolerant
inbred
lines
underwent
transcriptomic
metabolomic
analyses.
A
total
of
332
drought-responsive
491
rehydration-responsive
core
were
robustly
differentially
expressed
in
both
genotypes.
The
mainly
related
photosynthesis–antenna
proteins,
nitrogen
metabolism,
plant–pathogen
interactions,
MAPK
signaling
pathway.
Various
transcription
factors,
including
homeobox-leucine
zipper
protein
ATHB-12,
NAC
29,
heat
A-6b-like,
may
be
vital
for
status.
Moreover,
24,30-dihydroxy-12(13)-enolupinol,
caffeoyl
hawthorn
acid,
adenosine
5′-monophosphate,
guanosine
identified
genotypes
under
recovery
conditions.
combined
analysis
highlighted
importance
38
involved
pathways,
biosynthesis
secondary
metabolites,
amino
acids,
ABC
transporters
stress.
Our
results
provide
valuable
clues
regarding
molecular
basis
tolerance
rehydration.
data
presented
herein
relevant
genetically
improving
tomatoes
enhance
tolerance.
Microorganisms,
Год журнала:
2025,
Номер
13(3), С. 543 - 543
Опубликована: Фев. 27, 2025
Drought,
exacerbated
by
global
warming,
poses
a
significant
threat
to
crop
growth
and
productivity.
This
study
identified
strain
of
Trichoderma
harzianum
from
the
rhizosphere
healthy
Nicotiana
tabacum
L.
plants
evaluated
its
role
in
enhancing
drought
tolerance.
The
isolated
effectively
colonized
plant
roots
promoted
N.
To
investigate
potential,
T.
was
inoculated
into
under
varying
conditions,
impact
on
growth,
physiological
responses,
resilience
assessed.
Comprehensive
analyses
agronomic
traits,
parameters,
enzyme
activities,
photosynthetic
performance,
osmoprotectant
levels,
membrane
lipid
peroxidation
revealed
that
inoculation
(light
with
harzianum,
moderate
severe
treatments)
systematically
improved
development
resistance.
These
findings
provide
valuable
insights
lay
foundation
for
developing
innovative
biofertilizers
enhance
tolerance
sustainability.
Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Май 31, 2024
Salt
stress
is
a
major
abiotic
that
affects
the
growth
of
Reaumuria
soongorica
and
many
psammophytes
in
desert
areas
Northwest
China.
However,
various
Plant
Growth-Promoting
Rhizobacteria
(PGPR)
have
been
known
to
play
an
important
role
promoting
plant
alleviating
damaging
effects
salt
stress.
In
this
study,
three
PGPR
strains
belonging
Bacillaceae
were
isolated
from
rhizosphere
by
morphological
molecular
identification.
All
exhibited
capabilities
producing
IAA,
solubilizing
phosphate,
fixing
nitrogen,
able
tolerate
high
levels
NaCl
stress,
up
8–12%.
The
results
pot-based
experiment
showed
(400
mM
NaCl)
inhibited
seedlings’
performance
as
well
biomass
production,
but
after
inoculation
with
P2,
S37,
S40,
plant’s
height
significantly
increased
26.87,
17.59,
13.36%,
respectively
(
p
<
0.05
),
both
aboveground
root
fresh
weight
more
than
2
times
compared
treatment.
Additionally,
S40
content
photosynthetic
pigments,
proline,
soluble
protein
seedlings
under
while
reducing
malondialdehyde
sugars.
Metabolomic
analysis
strain
induces
seedling
leaves
metabolome
reprogramming
regulate
cell
metabolism,
including
hormone
signal
transduction
phenylalanine,
tyrosine,
tryptophan
biosynthesis
pathways.
Under
upregulated
differential
metabolites
pathways
hormones
such
auxins
(IAA),
cytokinins,
jasmonic
acid.
indicate
can
promote
enhance
tolerance
increasing
accumulating
osmoregulatory
substances,
regulating
This
study
contributes
enrichment
capable
plants
has
significant
implications
for
development
regions,
effective
utilization
transformation
saline-alkali
lands.
