Polish Journal of Environmental Studies,
Год журнала:
2024,
Номер
33(4), С. 4481 - 4492
Опубликована: Фев. 29, 2024
Lead
(Pb)
is
the
most
common
heavy
metal
contaminant
in
environment,
and
its
concentration
continuously
increasing
owing
to
anthropogenic
activities.Phytoremediation
a
green
technique
used
globally
remediate
polluted
soils.The
role
of
weeds
as
potential
phytoremediation
agents
has
rarely
been
reported
literature.Weeds
are
more
tolerant
abiotic
stress;
hence,
it
was
hypothesized
that
these
can
serve
purpose
efficiently.Therefore,
pot
experiment
conducted
evaluate
five
winter
weeds,
namely
Avena
fatua,
Phalaris
minor,
Coronopus
didymus,
Chenopodium
murale,
against
various
levels
Pb
stress:
control,
100
200
ppm.Results
depicted
all
could
survive
under
higher
Pb;
nonetheless,
exposure
ppm
stress
reduced
shoot
dry
weight
(29%-69%)
across
weeds.The
internal
CO
2
concentration,
photosynthesis
rate,
stomatal
conductance,
transpiration
rate
decreased
(5-60%)
among
with
levels.However,
murale
better
gas
exchange
attributes
than
other
weeds.Moreover,
increased
(4-60%)
antioxidant
activity
observed
at
level;
nevertheless,
Pb.Additionally,
highest
didymus
(60-75
ppm),
bio-accumulation
factor
showed
fatua
were
accumulators
Pb.The
translocation
minor
1,
depicting
translocated
into
shoots
from
roots;
accumulated
their
roots
shoots.Thus,
be
concluded
different
thrive
stress,
phytoremediation.
Journal of Agronomy and Crop Science,
Год журнала:
2024,
Номер
211(1)
Опубликована: Дек. 30, 2024
ABSTRACT
This
meta‐analysis
assesses
the
effects
of
melatonin
(Mel)
on
various
wheat
agronomic
traits,
revealing
significant
heterogeneity
and
potential
publication
bias.
comprehensive
analysis
highlights
variability
across
studies
(
I
2
>
98%
for
overall,
leaf
area,
root
shoot
weight),
indicating
a
selective
reporting
in
analysed
studies.
Grain
yield
weight
showed
values
93.78%
99.54%,
respectively,
confirming
complex
nature
melatonin's
impact,
which
necessitates
use
random‐effects
models.
Notably,
study
uncovers
traits
p
<
0.05).
Mel
increased
grain
by
33.50%
positively
influenced
weights
compared
to
control
(no
melatonin;
nMel).
However,
varied
different
concentration,
application
method
environmental
stressors.
significantly
with
application,
particularly
foliar
spray
41.40%,
nMel.
consistently
enhanced
overall
response
ratio
(ln
RR
)
yield,
weight,
length,
plant
height,
33.50%,
24.01%,
21.28%,
32.99%,
36.33%,
15.94%,
22.14%
20.86%
Compared
nMel,
most
pronounced
was
observed
under
salt
stress
conditions.
The
benefits
were
more
Egypt,
where
52.91%,
suggesting
that
local
factors
influence
its
efficacy.
Its
impact
cultivars,
Jimai_22
length
70.83%
Sids_14
56.39%
emphasising
importance
genetic
factors.
Cd
conditions
336%
470%,
while
decreased
87%
waterlogging
no
indicates
greatly
resistance
abiotic
stresses
modulating
stress‐responsive
pathways
improving
traits.
The
increased
concentration
of
lead
(Pb)
in
soils
is
a
serious
threat
to
human
beings
and
plants
all
over
the
world.
Salinity
stress
also
major
issue
across
globe,
which
limits
crop
productivity.
use
allelochemicals
has
become
an
effective
strategy
mitigate
toxic
effects
abiotic
stresses.
Sorghum
important
grown
it
possesses
appreciably
allelopathic
potential.
Therefore,
this
study
was
planned
determine
impacts
sorghum
water
extract
(SWE)
on
improving
maize
growth
under
Pb
salinity
stress.
experiment
included
different
treatments;
control,
SWE
(3%),
levels
stress;
T1:
T2:
50
mM
NaCl,
T3:
100
T4:
250
μM
Pb,
T5:
500
Pb.
Lead
reduced
by
genesis
reactive
oxygen
species
(ROS),
as
evidenced
higher
production
malondialdehyde
(MDA:
39.1
32.28%)
hydrogen
peroxide
(H2O2:
20.62
17.81%).
Spraying
with
improved
increasing
antioxidant
activities
(ascorbate
peroxidase:
APX,
catalase:
CAT,
POD
superoxide
dismutase:
SOD),
photosynthetic
pigments,
relative
contents
(RWC),
osmolyte
accumulation
(proline,
total
soluble
proteins:
TSP,
free
amino
acids:
FAA),
potassium
accumulation,
decreasing
MDA,
H2O2,
sodium,
chloride,
accumulation.
In
conclusion,
application
mitigates
adverse
stresses
chlorophyll
synthesis
activating
defense
system,
preventing
entry
ions.
The Plant Journal,
Год журнала:
2024,
Номер
119(6), С. 2638 - 2653
Опубликована: Июль 23, 2024
SUMMARY
Water
use
efficiency
(WUE)
is
crucial
for
apple
tree
fitness
and
survival,
especially
in
response
to
climatic
changes.
The
receptor‐like
kinase
FERONIA
reportedly
an
essential
regulator
of
plant
stress
responses,
but
its
role
regulating
WUE
under
water
deficit
conditions
unclear.
Here,
we
found
that
overexpressing
the
receptor
gene,
MdMRLK2
,
enhanced
long‐term
conditions.
Under
drought
treatment,
35S::MdMRLK2
plants
exhibited
higher
photosynthetic
capacity
antioxidant
enzyme
activities
than
wild‐type
(WT)
plants.
also
showed
increased
biomass
accumulation,
root
activity,
potential
compared
WT
Moreover,
physically
interacts
with
phosphorylates
cinnamoyl‐CoA
reductase
1,
MdCCR1,
lignin
synthesis,
at
position
Ser
260
.
This
interaction
likely
contributed
vessel
density,
vascular
cylinder
area,
content
Therefore,
our
findings
reveal
a
novel
function
