Phosphorus
(P)
is
critical
to
plants
in
metal-contaminated
soils
because
it
participates
various
biochemical
reactions
during
plant
growth.
However,
the
mechanisms
of
P
mitigating
toxicity
heavy
metals
ryegrass
root
still
veiled.
In
this
study,
physiological
and
dynamics
under
cadmium
(Cd)
conditions
were
investigated
a
hydroponic
system.
Cd
stress
decreased
length
root,
but
application
enhanced
elongation
reduce
concentration
root.
Both
dosages
positively
correlated
with
hemicellulose
1
content,
pectin
PME
activity,
while
have
negative
effect
on
cellulose
content.
Moreover,
addition
80
mg
L-1
increased
contents
by
2.5
5.8%
even
4
Cd.
addition,
supply
methylesterbase
activity
stress,
which
further
changed
extra-cytoplasmic
structures
cell
wall
composition.
Thus,
exogenous
promoted
immobilization
onto
protected
protoplast
primarily
through
indirectly
regulating
binding
capacity
for
Frontiers in Microbiology,
Journal Year:
2025,
Volume and Issue:
16
Published: Feb. 4, 2025
Introduction
Phosphorus
(P)
is
a
crucial
growth-limiting
nutrient
in
soil,
much
of
which
remains
challenging
for
plants
to
absorb
and
use.
Unlike
chemical
phosphate
fertilizers,
phosphate-solubilizing
microorganisms
(PSMs)
offer
means
address
available
phosphorus
deficiency
without
causing
environmental
harm.
PSMs
possess
multiple
mechanisms
solubilization.
Although
the
phosphorus-solubilizing
bacteria
(PSB)
have
been
well
characterized,
utilized
by
fungi
(PSF)
remain
largely
unexplored.
Methods
This
study
isolated
PSF
strain,
Trametes
gibbosa
T-41,
from
soil
evaluated
its
solubilizing
capacity
with
organic
(calcium
phytin;
Phytin-P)
inorganic
(tricalcium
phosphate;
Ca-P)
sources.
The
solubilization,
enzyme
activity,
acid
production
T-41
were
measured.
And
P-solubilizing
mechanism
conducted
transcriptomic
metabolomic
analyses.
Results
discussion
exhibited
varying
when
grown
sources
(109.80
±
8.9
mg/L
vs.
57.5
7.9
mg/L,
p
<
0.05).
Compared
Ca-P
treatment,
demonstrated
stronger
alkaline
phosphatase
(ALP)
under
Phytin-P
treatment
(34.5
1.2
μmol/L/h
19.8
0.8
μmol/L/h,
Meanwhile,
oxalic
acid,
maleic
succinic
was
higher
(
Transcriptomic
analysis
revealed
that
different
altered
metabolic
pathways
such
as
galactose
metabolism,
glyoxylate
dicarboxylic
ascorbate
aldolate
metabolism.
Key
metabolites
like
myo-inositol,
2-oxoglutarate,
pyruvate
found
impact
performance
T.
differently
two
P
Notably,
synthesis
Pytin-P,
upregulated
genes
involved
myo-inositol
synthesis,
potentially
enhancing
ability.
These
results
provide
new
insights
into
molecular
at
levels,
laying
theoretical
foundation
broader
application
bio-phosphorus
fertilizers
future.
Plants,
Journal Year:
2023,
Volume and Issue:
12(9), P. 1871 - 1871
Published: May 3, 2023
Mining
operations
degrade
natural
ecosystems
by
generating
a
large
quantity
of
mine
tailings.
Mine
tailings
remain
in
dams/open
ponds
without
further
treatment
after
valuable
metals
such
as
iron
ore
have
been
extracted.
Therefore,
rehabilitation
to
mitigate
the
negative
environmental
impacts
is
utmost
necessity.
This
review
compares
existing
physical,
chemical
and
amendment-assisted
phytoremediation
methods
from
perspective
cost,
reliability
durability.
After
discussion,
it
concluded
that
has
received
comparatively
great
attention;
however,
selection
an
appropriate
phytoremediator
critical
step
process.
Moreover,
efficiency
solely
dependent
on
amendment
type
rate.
Further,
application
advanced
plant
improvement
technologies,
genetically
engineered
plants
produced
for
this
purpose,
would
be
alternative
solution.
Further
research
needed
determine
suitability
method
particular
environment.
Stress Biology,
Journal Year:
2024,
Volume and Issue:
4(1)
Published: Feb. 16, 2024
Abstract
Pollution
by
toxic
heavy
metals
creates
a
significant
impact
on
the
biotic
community
of
ecosystem.
Nowadays,
solution
to
this
problem
is
an
eco-friendly
approach
like
phytoremediation,
in
which
plants
are
used
ameliorate
metals.
In
addition,
various
amendments
enhance
potential
metal
phytoremediation.
Symbiotic
microorganisms
such
as
phosphate-solubilizing
bacteria
(PSB),
endophytes,
mycorrhiza
and
plant
growth-promoting
rhizobacteria
(PGPR)
play
role
improvement
phytoremediation
along
with
promoting
growth
that
grown
contaminated
environments.
Various
chemical
chelators
(Indole
3-acetic
acid,
ethylene
diamine
tetra
acetic
glycol
ethylenediamine-N,
N-disuccinic
acid
nitrilotri-acetic
acid)
their
combined
action
other
agents
also
contribute
enhancement.
With
modern
techniques,
transgenic
developed
open
up
alternative
strategy
for
Genomics,
proteomics,
transcriptomics
metabolomics
widely
novel
approaches
develop
competent
phytoremediators.
This
review
accounts
synergistic
interactions
ameliorating
agent’s
enhancing
intending
highlight
importance
these
reducing
pollution.
