Environmental Technology & Innovation,
Journal Year:
2024,
Volume and Issue:
35, P. 103703 - 103703
Published: June 7, 2024
Rapid
economic
development
has
led
to
an
alarming
increase
in
soil
pollution
by
potentially
toxic
elements
(PTEs),
significantly
reducing
productivity
and
posing
long-term
threats
sustainable
agriculture
human
well-being.
Over
the
past
two
decades,
it
been
observed
that
PTEs
severely
impacted
biodiversity,
with
damage
rates
of
94.7
%
plants,
77.4
humans,
68.4
animals.
In
response,
various
remediation
technologies
have
developed,
considering
factors
such
as
practical
applicability,
treatment
duration,
ecological
safety.
Microbial
shown
a
removal
efficiency
ranging
from
32.0
95.2
%,
while
multi-technology
combined
approaches
demonstrated
broader
efficacy,
18.7
381
%.
However,
selection
suitable
technology
must
also
consider
cost
ensure
efficient
contaminant
removal.
This
review
provides
comprehensive
overview
local
international
status,
sources,
hazards
associated
PTEs,
well
environmental
influencing
their
migration.
It
examines
detoxification
mechanisms
plants
microbial
evaluates
strengths
weaknesses
physical,
chemical,
biological,
methods.
Furthermore,
underscores
requirements
opportunities
for
developing
effective
techniques.
The
insights
presented
here
are
crucial
agronomists
strategies
interdisciplinary
research
into
integrated
emission
sources
pathogenesis,
thereby
enhancing
efforts
safeguard
Earth's
environment.
International Journal of Phytoremediation,
Journal Year:
2024,
Volume and Issue:
26(11), P. 1741 - 1748
Published: May 13, 2024
Arbuscular
mycorrhizal
fungi
(AMF)
have
different
biological
mechanisms
to
alleviate
stressful
conditions
in
heavy
metals
(HMs)
polluted
soil.
These
were
widely
assessed
under
controlled/greenhouse
conditions,
but
scarcely
studied
at
pilot
or
territory
scale.
The
aim
of
this
study
was
evaluate
the
response
two
Microbial Cell Factories,
Journal Year:
2024,
Volume and Issue:
23(1)
Published: May 24, 2024
Abstract
Background
Azo
dyes
represent
a
common
textile
dye
preferred
for
its
high
stability
on
fabrics
in
various
harsh
conditions.
Although
these
pose
high-risk
levels
all
biological
forms,
fungal
laccase
is
known
as
green
catalyst
ability
to
oxidize
numerous
dyes.
Methods
Trichoderma
isolates
were
identified
and
tested
production.
Laccase
production
was
optimized
using
Plackett–Burman
Design.
molecular
weight
the
kinetic
properties
of
enzyme,
including
K
m
V
max,
pH,
temperature,
ionic
strength,
detected.
removal
efficiency
by
enzyme
detected
Congo
red,
methylene
blue,
methyl
orange.
Results
Eight
out
nine
producers.
superior
strain
T.
harzianum
PP389612,
increasing
from
1.6
2.89
U/ml.
In
SDS-PAGE,
purified
laccases
appear
single
protein
band
with
41.00
kDa.
max
values
146.12
μmol
guaiacol
3.82
guaiacol/min.
Its
activity
stable
pH
range
5–7,
an
optimum
temperature
40
50
°C,
strength
mM
NaCl,
thermostability
up
90
°C.
The
decolorization
increased
time
reached
maximum
after
72
h.
highest
achieved
red
decolorization,
which
99%
h,
followed
blue
at
72%,
while
orange
68.5%.
Conclusion
can
be
used
effective
natural
bio-agent
because
it
removes
colors
very
well.
Plant
activators
have
emerged
as
promising
alternatives
to
conventional
pesticides
for
crop
disease
manage-ment
due
their
unique
mode
of
action.
By
priming
the
plant's
innate
immune
system,
these
compounds
can
induce
systemic
acquired
resistance
against
a
broad
spectrum
pathogens
without
directly
inhibiting
proliferation.
Key
advantages
plant
include
prolonged
defense
activity,
lower
effective
dosages,
and
negligible
risk
developing
pathogen
resistance.
Among
various
defensive
pathways
tar-geted,
salicylic
acid
(SA)
signaling
cascade
has
been
extensively
explored,
leading
successful
devel-opment
commercial
like
benzothiadiazole
widespread
application
in
protection.
While
action
sites
many
SA-targeting
preliminarily
mapped
different
steps
along
pathway,
comprehensive
understanding
precise
mechanisms
remains
elusive.
This
review
provides
historical
perspective
on
activator
development
outlines
diverse
screening
strategies
employed
across
multiple
levels,
from
whole-plant
bioassays
molecular
transgenic
approaches.
We
expound
intricate
components,
biological
relevance,
regulatory
circuits
governing
SA
while
criti-cally
examining
structural
features,
bioactivities,
proposed
modes
classical
such
derivatives,
analogs,
other
small
molecules.
Insights
field
trials
as-sessing
practical
applicability
are
also
discussed.
Furthermore,
we
highlight
current
status,
challenges,
future
prospects
realm
globally,
with
focus
recent
en-deavors
China.
Collectively,
this
aims
synthesize
existing
knowledge
provide
roadmap
research
toward
more
potent
mechanistically
understood
activa-tors
that
fortify
immunity
disease.
Chemical Communications,
Journal Year:
2024,
Volume and Issue:
60(85), P. 12315 - 12332
Published: Jan. 1, 2024
Microbial
transformation
processes
of
heavy
metals,
including
immobilization,
oxidation
or
reduction,
and
(de)methylation,
can
provide
various
bioremediation
strategies
for
metals-contaminated
enviroments.
Agriculture,
Journal Year:
2025,
Volume and Issue:
15(2), P. 203 - 203
Published: Jan. 18, 2025
The
southwestern
region
of
China
is
one
the
major
maize
(Zea
mays
L.)-producing
areas
and
a
concentrated
zone
farmland
contaminated
by
heavy
metals
(HMs).
Selection
varieties
with
low
accumulation
HMs
under
complex
HM
pollution
conditions
most
feasible
effective
ways
for
safe
utilization
HM-polluted
farmland.
In
this
study,
we
conducted
field
experiments
to
investigate
differences
in
biological
traits
among
28
local
combined
soil
Cd,
Pb,
As,
Cr,
Hg.
We
analyzed
absorption,
accumulation,
transport
characteristics
Cr
various
parts
plant
(Hg
was
not
detected
any
part
plants)
explored
relationships
contents
different
through
cluster
analysis,
correlation
principal
component
analysis.
results
indicated
that
maize,
root
length,
dry
weight,
height
were
significantly
influenced
content,
while
stem
weight
least
affected.
capacity
followed
order
grains
<
stems
cobs
leaves
roots,
root–grain
root–stem
cob–grain
stem–cob
stem–leaf.
addition,
As
Pb
Cd.
Different
exhibited
synergistic
effects
parts,
except
stem,
particularly
grains.
A
synchronous
mechanism
observed
other
parts.
primarily
derived
from
human
activities
such
as
extraction,
storage,
smelting
non-ferrous
metals,
parent
material
weathering
products
played
secondary
role.
yield
tested
ranged
7377.6
11,037.0
kg·hm−2,
M5
(Haoyu
1511)
achieving
highest
yield.
M2,
M4,
M5,
M9,
M10,
M21,
M25–28
identified
suitable
popularization
HM-contaminated
soils
due
their
HMs.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 29, 2025
Abstract
The
utilization
of
cyanobacteria
toxin-producing
blooms
for
metal
ions
adsorption
has
garnered
significant
attention
over
the
last
decade.
This
study
investigates
efficacy
dead
cells
from
Microcystis
aeruginosa
blooms,
collected
agricultural
drainage
water
reservoir,
in
removing
cadmium,
lead,
and
zinc
aqueous
solutions,
simultaneously
addressing
mitigation
M.
bloom.
Some
physical
characterization
biomass
was
performed,
including
scanning
electron
microscope
(SEM)
which
revealed
that,
form
a
dense,
amorphous
cluster,
energy-dispersive
X-ray
(EDX)
spectroscopy
confirmed
that
carbon,
oxygen,
nitrogen
are
predominant
elements
biomass,
Fourier
transformation
infrared
(FTIR)
identified
several
active
function
groups,
hydroxyl,
aliphatic
C–H
amide
I
II
bands,
carboxylate
carbonyl
(C=O).
Key
factors
influencing
process
were
examined.
Under
optimal
conditions—pH
6,
biosorbent
dose
0.3
g,
contact
time
90
min,
primary
level
100
mg/L
temperature
35
°C
(313K)—a
maximum
removal
efficiency
exceeding
90%
achieved.
Isothermal
analysis
Cd(II),
Pb(II),
Zn(II)
followed
Langmuir
isotherm
model
(R
2
=
0.96,
q
max
>
67
mg/g).
Kinetic
studies
indicated
pseudo-second-order
best
described
0.94
e
81.3
mg/g.),
suggesting
dominant
chemisorption
mechanism.
Thermodynamic
is
spontaneous
endothermic.
findings
highlight
potential
as
low-cost,
sustainable
heavy
wastewater
treatment
applications.
