Salt Tolerance Induced by Plant Growth-Promoting Rhizobacteria Is Associated with Modulations of the Photosynthetic Characteristics, Antioxidant System, and Rhizosphere Microbial Diversity in Soybean (Glycine max (L.) Merr.)
Agronomy,
Journal Year:
2025,
Volume and Issue:
15(2), P. 341 - 341
Published: Jan. 28, 2025
Salinity
stress
poses
a
major
obstacle
to
agricultural
productivity.
Employing
plant
growth-promoting
rhizobacteria
(PGPR)
has
attracted
significant
attention
due
its
potential
improve
development
in
challenging
conditions.
Yet,
additional
investigation
is
essential
fully
understand
the
of
PGPR
mitigating
salinity
stress,
especially
field
applications.
Hence,
this
study
investigated
resistance
mechanisms
soybean
(Glycine
max
(L.)
Merr.)
under
salt
with
application
through
experiment
four
treatments:
normal
planting
(NN),
+
(NP),
(SN),
and
(SP).
This
research
how
applying
influences
photosynthetic
traits,
osmotic
regulation,
rhizosphere
microbial
communities,
yield
quality.
The
results
demonstrated
that
enhanced
leaf
temperature
significantly
reduced
area
index,
SPAD
value,
stomatal
conductance,
rate,
transpiration
rate
soybeans.
Compared
SN
treatment,
SP
treatment
improved
by
10.98%,
16.28%,
35.59%,
respectively.
Salt
substantially
increased
sodium
(Na+)
concentration
Na+/K+
ratio
leaves,
roots,
grains
while
reducing
potassium
(K+)
roots
leaves.
Under
minimized
Na+
leaves
K⁺
47.05%,
25.72%,
14.48%,
boosted
carbon
assimilation
(starch
synthesis)
enhancing
activities
sucrose
synthase,
fructokinase,
ADP-glucose
pyrophosphorylase.
It
physiological
parameters
32.57%
compared
treatment.
Additionally,
antioxidant
enzyme
activities,
including
glutathione
reductase,
peroxidase,
ascorbate
monodehydroascorbate
oxidative
damage
from
stress.
Analysis
communities
revealed
enriched
beneficial
bacterial
phyla
such
as
Bacteroidetes,
Firmicutes,
Nitrospirae,
Patescibacteria
fungal
genera
like
Metarhizium.
These
shifts
likely
contributed
nutrient
cycling
plant–microbe
interactions,
further
resilience
salinity.
demonstrates
enhances
growth,
diversity,
tolerance
future
efforts
should
optimize
formulations,
explore
synergies,
scale
up
for
sustainable
Language: Английский
Multi-omics profiling reveals elevated CO2-enhanced tolerance of Trifolium repens L. to lead stress through environment-plant-microbiome interactions
Environment International,
Journal Year:
2024,
Volume and Issue:
194, P. 109150 - 109150
Published: Nov. 13, 2024
The
increasing
atmospheric
CO
Language: Английский