Plant and Soil,
Journal Year:
2022,
Volume and Issue:
477(1-2), P. 219 - 232
Published: May 17, 2022
Abstract
Purpose
Silicon
(Si)
accumulation
by
grasses
alleviates
diverse
biotic
and
abiotic
stresses.
Despite
this
important
functional
role,
we
have
limited
understanding
of
how
root
microbial
symbionts,
such
as
arbuscular
mycorrhizal
(AM)
fungi,
affect
Si
uptake
even
less
about
supply
AM
fungal
colonisation.
Our
objective
was
to
determine
the
nature
two–way
interaction
in
model
grass,
Brachypodium
distachyon.
Methods
We
grew
B.
distachyon
with
five
levels
supplementation
using
wild-type
plants
a
mutant
(
Bdlsi1-1
)
that
has
little
capacity
for
uptake.
Half
were
colonised
fungi;
half
free
fungi.
measured
accumulation,
colonisation,
leaf
carbon
(C),
nitrogen
(N)
phosphorus
(P)
concentrations.
Results
fungi
did
not
although
small
increases
occurred
when
mass
included
covariate.
supplemented
soil
promoted
plant
growth
P
suppressed
colonisation
C
concentrations
wild
type
but
plants.
negatively
correlated
N
concentrations,
correlations
being
stronger
than
Conclusions
results
indicate
plant,
rather
availability
soil,
underpinned
reduced
AMF
propose
is
unlikely
be
impacted
inherently
high
may
suppress
Annual Review of Plant Biology,
Journal Year:
2021,
Volume and Issue:
73(1), P. 17 - 42
Published: Dec. 15, 2021
Tremendous
progress
has
been
made
on
molecular
aspects
of
plant
phosphorus
(P)
nutrition,
often
without
heeding
information
provided
by
soil
scientists,
ecophysiologists,
and
crop
physiologists.
This
review
suggests
ways
to
integrate
from
different
disciplines.
When
P
availability
is
very
low,
P-mobilizing
strategies
are
more
effective
than
mycorrhizal
strategies.
Soil
parameters
largely
determine
how
much
roots
can
acquire
P-impoverished
soil,
kinetic
properties
transporters
less
important.
Changes
in
the
expression
avoid
toxicity.
Plants
vary
widely
photosynthetic
P-use
efficiency,
photosynthesis
per
unit
leaf
P.
The
challenge
discover
what
trade-offs
patterns
investment
fractions.
Less
may
save
P,
but
costs
incurred?
Are
these
acceptable
for
crops?
These
questions
be
resolved
only
concerted
action
scientists
working
at
both
physiological
levels,
rather
pursuing
problems
independently.
Critical Reviews in Environmental Science and Technology,
Journal Year:
2023,
Volume and Issue:
54(9), P. 722 - 746
Published: Oct. 11, 2023
AbstractDue
to
the
frequent
occurrence
of
extreme
weather
and
severe
environmental
pollution,
food
security
human
survival
are
at
risk.
Silicon,
a
key
element
in
plant
nutrition
remediation,
has
variety
applications
combatting
various
forms
abiotic
biotic
stress
fostering
healthy
plants
soils.
To
establish
silicon-based
defense
barrier
for
plants,
we
firstly
summarized
grouped
mechanisms
silicon
functioning
plants:
1)
molecular
regulation
overall
strengthening,
2)
physical
apoplastic
obstruction,
3)
energy
conservation.
Additionally,
types
materials
as
soil
remediation
fertilizers
were
discussed.
Then,
challenges
build
up
such
analyzed
terms
absorption
transportation,
deposition
aggregation,
perception
regulation.
An
"external
+
internal"
strategy
was
proposed
accelerate
establishment
enhance
plants'
resistance
including
high
temperatures,
drought,
ultraviolet
radiation,
salt,
heavy
metals,
nutrient
deficiencies,
new
pollutants,
stress.
Finally,
this
paper
emphasized
contribution
Soil-Plant-Atmosphere
system
that
eventually
benefit
health.
This
highlights
current
understanding
future
perspectives
silicon-related
research
system,
providing
reference
application
agricultural
fields.Keywords:
pollutionplant
healthSiliconsoil
healthstress
resistanceHandling
Editors:
Dan
Tsang
Lena
Q.
Ma
Disclosure
statementNo
potential
conflict
interest
reported
by
author(s).Additional
informationFundingThis
work
jointly
supported
grants
from
National
Natural
Science
Foundation
China
(No.
32272799),
Fundamental
Research
Funds
Central
Universities
226-2023-00077)
Key
Development
Program
2018YFD0800202).
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: July 3, 2024
Abstract
Cadmium
(Cd)
pollution
is
a
serious
threat
to
food
safety
and
human
health.
Minimizing
Cd
uptake
enhancing
tolerance
in
plants
are
vital
improve
crop
yield
reduce
hazardous
effects
humans.
In
this
study,
we
designed
three
concentration
stress
treatments
(Cd1:
0.20
mg·kg
−1
,
Cd2:
0.60
Cd3:
1.60
)
two
foliar
silicon
(Si)
(CK:
no
spraying
of
any
material,
Si:
Si
spraying)
conduct
pot
experiments
on
soil
stress.
The
results
showed
that
the
leaves
reduced
content
brown
rice
by
4.79–42.14%.
application
increased
net
photosynthetic
rate
(Pn)
1.77–4.08%,
stomatal
conductance
(Gs)
5.27–23.43%,
transpiration
(Tr)
2.99–20.50%
intercellular
carbon
dioxide
(CO
2
(Ci)
6.55–8.84%.
Foliar
significantly
activities
superoxide
dismutase
(SOD)
peroxidase
(POD)
9.84–14.09%
4.69–53.09%,
respectively,
malondialdehyde
(MDA)
7.83–48.72%.
summary,
protects
photosynthesis
antioxidant
system
canopy
leaves,
an
effective
method
rice.
