International Journal of Phytoremediation,
Journal Year:
2024,
Volume and Issue:
26(14), P. 2301 - 2312
Published: Aug. 10, 2024
Cadmium
(Cd)
contamination
poses
a
significant
threat
to
plants
and
human,
as
it
can
easily
accumulate
in
plant
tissues,
leading
biochemical
physiological
disorders.
There
is
growing
interest
using
biochar
mitigate
the
absorption
of
heavy
metals
by
rice
plants.
This
study
tested
peach
(PB)
its
various
levels
applications
evaluate
promising
level
for
Cd
remediation
contaminated
soil.
The
application
PB
Ecotoxicology and Environmental Safety,
Journal Year:
2024,
Volume and Issue:
271, P. 115940 - 115940
Published: Jan. 12, 2024
Coptis
chinensis
Franch
is
a
perennial
herb
from
the
Ranunculaceae
family
with
long
history
of
medicinal
use.
As
part,
rhizome
coptis
often
accumulates
excessive
cadmium
(Cd)
even
at
low
concentrations
in
soil,
which
not
only
compromises
its
safety
but
also
raises
concerns
about
adverse
effects
on
human
health.
Therefore,
effective
strategies
are
needed
to
mitigate
this
accumulation
and
ensure
safe
use
traditional
medicine.
This
study
utilized
transcriptome
profiling
physiological
analysis
explore
molecular
mechanisms
associated
ecological
significance
active
Cd
C.
chinensis.
The
response
was
assessed
through
RNA
sequencing,
determination
isoquinoline
alkaloid
measurement
using
roots,
stems,
leaves.
revealed,
total
2667,
2998,
or
2815
up-regulated
deferentially
expressed
genes
stems
leaves
exposure.
Furthermore,
we
identified
phenylpropanoid
biosynthesis
as
key
pathways
exposure,
suggests
that
may
improve
tolerance
regulating
pathway.
Under
plant-pathogen
interaction
pathway,
indicates
upregulation
involved
could
enhance
disease
resistance
WGCNA
WRKY8
(Cluster-55763.31419)
WRKY47
(Cluster-55763.221590)
potential
regulators
secondary
metabolic
synthesis
pathway
triggered
by
Cd.
berberine,
coptisine,
palmatine,
epiberberine
demonstrated
simulated
four
alkaloids
roots.
our
presented
expression
profiles
revealed
significant
metal
transport
detoxification
suggested
possible
mechanism
cope
accumulation.
knowledge
provides
new
insight
into
gene
manipulation
for
controlling
accumulation,
enhancing
promoting
metabolites
properties
other
plant
species.
Ecotoxicology and Environmental Safety,
Journal Year:
2025,
Volume and Issue:
289, P. 117692 - 117692
Published: Jan. 1, 2025
Excessive
copper
(Cu)
of
rhizosphere
inhibited
the
growth
and
development
citrus
seedlings.
Lignin
deposition
on
cell
wall
promotes
plant
Cu
tolerance.
However,
lignin
biosynthesis
in
leaves
roots
that
respond
to
toxicity
is
not
fully
understood.
In
this
study,
young
seedlings
'Xuegan'
[Citrus
sinensis
(L.)
Osbeck,
a
less
Cu-tolerant
species]
'Shatian
pomelo'
grandis
more
were
treated
with
nutrient
solution
containing
0.5
(as
Control),
100,
300
or
500
µM
for
15
weeks
sandy
culture.
By
end
treatments,
sampled
investigate
biomass
allocation,
distribution,
deposition.
The
results
indicated
stress
from
100
increased
root/shoot
ratio,
promoting
accumulation
tested
species.
Besides,
three
monomers
metabolomic
profile
altered
components
are
prominent
precursor
under
than
leaves.
histochemical
staining
supported
improved
both
guaiacy
syringy
units
roots.
enzyme
activity
gene
expression
revealed
activating
lignin-biosynthetic
enzymes,
such
as
L-phenylalanine
ammonia-lyase,
peroxidase
laccase,
played
an
essential
role
biosynthesis.
Our
demonstrated
excessive
induced
different
extents.
findings
present
study
our
understanding
Cu-stressed
species,
which
would
provide
theoretical
basis
mechanisms.
Ecotoxicology and Environmental Safety,
Journal Year:
2024,
Volume and Issue:
283, P. 116843 - 116843
Published: Aug. 10, 2024
Fifteen
poplar
varieties
were
used
in
a
field
trial
to
investigate
the
phytoremediation
efficiency,
stress
resistance,
and
wood
property
of
hybrid
with
diverse
genetic
backgrounds
under
composite
pollution
heavy
metals.
The
coefficient
variation
clone
repeatability
for
growth
traits
Cd
concentration
large.
accumulation
107
QHQ
reached
1.9
1.7
mg,
respectively,
followed
by
QHB,
Ti,
69,
Pa,
which
1.3
mg.
Most
intra-specific
(69,
QH1,
SL4,
T3,
ZL46)
had
low
concentrations
small
biomass,
resulting
weak
efficiency
Cd-polluted
soil.
By
contrast,
inter-sectional
inter-specific
exhibited
better
performance
accumulated
higher
metals
than
hybrids.
bioconcentration
factor
translocation
Hg,
As,
Pb
less
1,
indicating
that
poplars
have
these
hybrids
between
section
Aigeiros
Tacamahaca
(QHQ
QHB)
within
more
resistant
metal
other
partially
because
their
high
levels
free
proline
exceeded
93
μg·g
The Crop Journal,
Journal Year:
2024,
Volume and Issue:
12(4), P. 1041 - 1053
Published: June 22, 2024
In
acidic
paddy
fields
of
South
China,
rice
(Oryza
sativa
L.)
faces
the
dual
challenges
cadmium
(Cd)
toxicity
and
silicon
(Si)
deficiency.
Although
previous
studies
have
highlighted
functions
Si
application
timing
strategies
in
mitigating
Cd-stressed
rice,
precise
mechanisms
underlying
health
restoration
Cd-toxic
assurance
grain
safety
remain
elusive.
This
study
explored
Cd
translocation
detoxification
shoots
regulated
by
various
fertilization
regimes:
Si(T)
(all
added
before
transplanting),
Si(J)
at
jointing),
Si(TJ)
(half
both
transplanting
jointing).
The
findings
revealed
that
regime
was
more
beneficial
to
than
Si(J).
osmotic
regulators
such
as
proline,
soluble
sugars,
proteins
were
significantly
boosted
compared
other
treatments,
which
enhanced
membrane
integrity,
balanced
intracellular
pH,
increased
tolerance
rice.
Furthermore,
effective
on
sequestration
cell
wall,
bio-passivation,
down-regulated
expression
transport
genes.
concentrations
xylem
phloem
treated
with
reduced
significantly.
Additionally,
facilitated
much
bound
outer
layer
grains,
promoted
chelation
complexation
phytic
acid,
phenolics,
flavonoids.
Overall,
(TJ)
outperformed
harmonizing
phycological
processes,
inhibiting
translocation,
enhancing
plant.
Thereby
split
strategy
offers
potential
for
reducing
grain.
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Abstract
Acid
rain
is
a
global
ecological
issue
severely
threatening
crop
growth.
Curcumin
(CUR),
natural
antioxidant,
can
enhance
the
tolerance
of
plants
to
abiotic
stresses
via
physiological
and
molecular
modes.
As
both
medicine
food,
Akebia
trifoliata
exhibits
high
economic
value.
The
resistance
mechanism
A.
acid
mitigation
effects
CUR
remain
unclear.
Therefore,
in
this
study,
we
investigated
plant
growth,
characteristics
leaves,
anatomical
structure,
gene
expression
under
stress
before
after
treatment
with
exogenous
CUR.
results
indicated
that
stress,
contents
chlorophyll
a,
b,
total
chlorophyll,
starch
thicknesses
upper
lower
epidermis
leaves
decreased
by
58.16%,
77.88%,
64.77%,
63.85%,
58.93%,
35.57%,
respectively.
Moreover,
MDA,
soluble
sugar,
protein,
proline
production
rate
oxygen
free
radicals
increased
82.55%,
43.20%,
44.55%,
64.40%
345.77%,
This
suggested
affected
growth
development
trifoliata.
resisted
increasing
SOD
CAT
activities;
thickness
leaf,
palisade
tissue,
spongy
tissue;
ratio
palisade/spongy
tissue.
However,
could
effectively
facilitate
maintain
integrity
structure
relieve
damages
caused
50
µmol/L
(CUR50)
was
most
optimal
concentration.
Transcriptomic
analysis
revealed
CUR0
vs
Control,
CUR50
had
2978,
1760,
323
DEGs,
KEGG
pathway
enrichment
these
DEGs
were
involved
eight
pathways,
among
which
protein
processing
endoplasmic
reticulum,
hormone
signal
transduction,
phenylpropanoid
biosynthesis,
sucrose
metabolism
key
metabolic
pathways
mitigated
stress.
study
potential
response
physiological,
anatomical,
transcriptomic
analyses,
thereby
providing
theoretical
references
for
phytoremediation
zone.
