THE JOURNAL OF MICROBIOLOGY AND MOLECULAR GENETICS,
Год журнала:
2024,
Номер
5(1), С. 83 - 95
Опубликована: Апрель 30, 2024
The
objective
of
this
study
is
to
isolate
gram-positive
bacilli
from
soil
and
the
effects
physiological
parameters
on
their
heavy
metal
resistance.
High
levels
metals
in
can
have
major
toxic
microorganisms
may
cause
a
great
change
species
diversity
population
sizes
microbes.
In
current
samples
were
collected
agriculture
drainage
water
Lahore.
After
selection
sixty
strains,
biochemical
metabolic
profile
was
structured
all
auxin
producing.
isolates
resistant
multiple
including
Ni.
Pb,
Cr,
Li
Hg.
Their
selenite
reduction
estimated
at
varyingpH,
Temperature
concentrations
upto
3000
?g/ml,
However,
efficacy
reducing
majorly
affected
by
set
parameters.
Desalination and Water Treatment,
Год журнала:
2024,
Номер
319, С. 100523 - 100523
Опубликована: Июнь 12, 2024
Heavy
metals
represent
a
significant
contributor
to
water
pollution,
posing
serious
environmental
and
health
risks
due
human
activities
industrialization.
The
release
of
heavy
metal
contaminants
into
sources
has
spurred
extensive
research
wastewater
treatment
methods,
including
precipitation,
evaporation,
ion
exchange,
membrane
processes,
electroplating.
However,
these
conventional
techniques
often
prove
costly,
limited
in
effectiveness,
may
inadvertently
exacerbate
pollution
concerns.
This
review
underscores
biosorption
as
highly
promising
alternative
for
effectively
removing
harmful
ions
from
sources.
Biosorption,
physical
technique,
capitalizes
on
mechanisms
such
surface
complexation,
leveraging
more
economical
biological
materials
biosorbents.
Microorganisms,
encompassing
bacteria,
fungi,
algae,
plant
products,
emerge
pivotal
agents
biosorption,
offering
sustainable
cost-effective
approach.
There
is
growing
interest
harnessing
local
microbiota
aiming
mitigate
contamination
without
adverse
impacts.
Notably,
both
living
deceased
fungal
biomass
have
garnered
attention
adsorbents
eliminating
solutions.
behavior
presents
numerous
advantages,
warranting
further
fully
exploit
its
potential
endeavors.
Frontiers in Marine Science,
Год журнала:
2024,
Номер
11
Опубликована: Авг. 9, 2024
Bay
ecosystems
with
unique
economic
and
ecological
value
are
more
vulnerable
to
heavy
metal
pollution
than
other
marine
ecosystems.
In
South
Korea,
rapid
development
has
exacerbated
in
bay
environments.
This
study
analyzed
concentrations
of
seven
metals
the
structure
macrobenthic
community
Asan
Bay.
Five
indices
(PLI,
Pn,
RI,
TRI,
MERMQ)
were
used
assess
risk.
Additionally,
spearman
correlation,
biota–environment
matching
(BIO-ENV),
redundancy
analysis
(RDA)
utilized
determine
influence
on
communities.
Although
average
below
sediment
quality
guidelines
(SQGs),
concentration
Cd
was
close
threshold
effects
level
(TEL).
The
nemerow
index
(Pn)
potential
risk
(RI)
indicated
that
primary
contributing
Spearman
BIO-ENV,
RDA
main
environmental
factors
influencing
communities
However,
five
did
not
show
a
response
Overall,
low
have
certain
negative
impact
can
serve
as
an
important
reference
for
protection
policy-making
Water,
Год журнала:
2024,
Номер
16(13), С. 1759 - 1759
Опубликована: Июнь 21, 2024
The
heavy
metal
cadmium
poses
severe
threats
to
both
ecosystems
and
human
health.
Utilizing
genetic
engineering
enhance
the
microbial
capability
for
efficient
accumulation
has
emerged
as
a
pivotal
research
direction.
This
study
constructed
genetically
engineered
bacterium
capable
of
expressing
multivalent
phytochelatins
with
self-assembly
ability
explored
its
efficacy
in
adsorption.
Molecular
biology
techniques
were
adopted
fuse
recombinant
ferritin
(rHF)
gene
synthetic
phytochelatin
(EC)
gene,
known
robust
adsorption
capacity
metals.
expression
vector
was
constructed.
Escherichia
coli
(E.
coli)
served
host
cell
express
nanochelator
rHF-ECs
tailored
high-efficiency
results
reveal
successful
soluble
fusion
protein
E.
cells,
forming
self-assembled
nanoparticles
size
about
13
nm,
target
rHF-EC20
(monomer)
could
adsorb
approximately
9.2
μmol
Cd2+
vitro.
Moreover,
this
strain
demonstrated
across
temperature
range
16–45
°C
pH
5–9,
optimal
performance
observed
at
7.0
37
°C.
Compared
control
strain,
BL21
(FLE),
nano-chelating
peptides,
achieves
an
rate
80%
60
min,
resulting
18%
increase
enrichment
efficiency.
maximum
reached
12.62
mg
per
gram
dry
weight.
work
indicated
that
synthesis
chelating
peptides
cells
efficiently
bioaccumulation
cadmium,
which
renders
novel
avenues
methodologies
addressing
pollution,
offering
promising
prospects
environmental
remediation.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Янв. 9, 2025
Abstract
Biosynthesized
nanoparticles
have
a
variety
of
applications,
and
microorganisms
are
considered
one
the
most
ideal
sources
for
synthesis
green
nanoparticles.
Icerya
aegyptiaca
(Douglas)
is
pest
that
has
many
generations
per
year
can
affect
123
plant
species
from
49
families
by
absorbing
sap
bark,
forming
honeydew,
causing
sooty
mold,
attracting
invasive
ant
species,
leading
to
significant
agricultural
losses.
The
purpose
this
work
was
synthesize
titanium
dioxide
(TiO
2
-NPs)
marine
actinobacteria
evaluate
their
insecticidal
effects
on
(Hemiptera:
Monophlebidae),
in
addition
explaining
protein
electrophoresis
analysis
SDS‒PAGE
proteins
control
treated
insects
after
24,
72
120
h
exposure.
In
all,
seven
actinobacterial
isolates,
potent
which
potential
produce
hydroxide-based
-NP2),
DNA
sequences
99.9%
like
those
Streptomyces
rubrolavendulae
(MCN2)
according
nucleotide
alignment
phylogenetic
tree.
produced
TiO
-NPs
were
verified
UV
examination
characterized
FT-IR,
XRD,
TEM,
EDX,
DLS
analyses.
Toxicological
results
revealed
high
mortality
rates
reaching
55,
62.5,
80
95%
at
TiO2-NPs
dose
120,250,500
1000
ppm
respectively.
Compared
with
control,
TiO2-NP
spraying
caused
changes
pattern
I.
aegyptiaca,
as
indicated
disappearance
normal
bands
appearance
other
bands,
well
quantitative
qualitative
content
application
MNC2
offers
new
alternative
strategy
modern
approach
nanotechnology.
