Frontiers in Microbiology,
Год журнала:
2023,
Номер
14
Опубликована: Июнь 16, 2023
Hydrocarbon
spills
in
cold
climates
are
a
prominent
and
enduring
form
of
anthropogenic
contamination.
Bioremediation
is
one
suite
remediation
tools
that
has
emerged
as
cost-effective
strategy
for
transforming
these
contaminants
soil,
ideally
into
less
harmful
products.
However,
little
understood
about
the
molecular
mechanisms
driving
complex,
microbially
mediated
processes.
The
emergence
-omic
technologies
led
to
revolution
within
sphere
environmental
microbiology
allowing
identification
study
so
called
'unculturable'
organisms.
In
last
decade,
have
powerful
tool
filling
this
gap
our
knowledge
on
interactions
between
organisms
their
environment
vivo.
Here,
we
utilize
text
mining
software
Vosviewer
process
meta-data
visualize
key
trends
relating
climate
bioremediation
projects.
results
literature
revealed
shift
over
time
from
optimizing
experiments
macro/community
level
to,
more
recent
years
focusing
individual
interest,
microbiome
investigation
novel
metabolic
degradation
pathways.
This
research
focus
was
made
possible
large
part
by
rise
omics
studies
not
only
what
organisms/metabolic
pathways
present
but
those
which
functional.
all
harmonious,
development
downstream
analytical
methods
associated
processing
outpaced
sample
preparation
methods,
especially
when
dealing
with
unique
challenges
posed
analyzing
soil-based
samples.
Abstract
Biochar
is
well-accepted
as
a
viable
climate
mitigation
strategy
to
promote
agricultural
and
environmental
benefits
such
soil
carbon
sequestration
crop
productivity
while
reducing
greenhouse
gas
emissions.
However,
its
effects
on
microbial
biomass
(SMBC)
in
field
experiments
have
not
yet
been
thoroughly
explored.
In
this
study,
we
collected
539
paired
globally
published
observations
study
the
impacts
of
biochar
SMBC
under
experiments.
Our
results
suggested
an
overall
positive
impact
(21.31%)
SMBC,
varying
widely
with
different
conditions,
types,
properties,
management
practices.
application
exhibits
significant
climates
mean
annual
temperature
(MAT)
<
15
°C
precipitation
(MAP)
between
500
1000
mm.
Soils
coarse
fine
texture,
alkaline
pH
(SPH),
total
organic
(STC)
content
up
10
g/kg,
nitrogen
(STN)
1.5
low
cation
exchange
capacity
(SCEC)
5
cmol/kg
received
higher
SMBC.
produced
from
residue,
specifically
cotton
maize
at
pyrolysis
(BTM)
400
°C,
(BPH)
8
9,
rate
(BAP)
t/ha,
high
ash
(BASH)
>
g/kg
resulted
increase
Low
(BTC)
(BTN)
positively
affect
Repeated
significantly
increased
by
50.11%,
fresh
(≤
6
months)
enhanced
compared
single
aged
biochar.
applied
fertilizer
(up
300
kg/ha)
manure/compost
showed
improvements
but
co-application
straw
slight
negative
The
best-fit
gradient
boosting
machines
model,
which
had
lowest
root
square
error,
demonstrated
relative
importance
various
factors
effectiveness:
biochar,
soil,
climate,
applications
46.2%,
38.1%,
8.3%,
7.4%,
respectively.
Soil
clay
proportion,
BAP,
application,
MAT
were
most
critical
variables
for
that
efficiency
varies
climatic
environments,
practices,
feedstock
types.
meta-analysis
provides
first
quantitative
review
demonstrating
potential
rehabilitating
nutrient-deprived
soils
promoting
sustainable
land
management.
To
improve
amendment,
call
long-term
measure
across
diverse
agroecosystems.
Graphical
Frontiers in Microbiology,
Год журнала:
2025,
Номер
15
Опубликована: Янв. 6, 2025
Thiabendazole
(TBZ),
a
recalcitrant
fungicide,
is
frequently
applied
in
postharvest
fruit
treatment
and
generates
significant
volumes
of
industrial
wastewater
(WW)
that
conventional
plants
cannot
handle.
This
explores
bioelectrochemical
system
(BES)
for
TBZ
degradation
using
Tunisian
hypersaline
sediments
(THSs)
as
inoculum.
Four
sets
BES,
along
with
biological
controls,
were
tested
THS
subjected
to
different
levels
biostimulation.
Sediments
underwent
one,
two,
or
three
biostimulation
phases
increasing
concentrations
(0,
10,
100,
300
mg
kg-1).
Potentiostatic
control
was
polarized
at
0.1
V
vs.
saturated
calomel
reference
electrode
(SCE),
carbon
felt
working
(72
cm2
L-1)
maintained
25°C.
While
current
production
very
low,
biostimulated
100
kg-1
kg
produced
the
highest
density
(3.2
mA
m-2),
5-fold
increase
over
untreated
(0.6
m-2).
GC-FID
analysis
showed
>99%
all
reactors.
The
half-elimination
time
from
27
days
treatments
19
BES
further
6
following
Bacterial
revealed
substantial
microbial
community
shift
after
biostimulation,
reduction
Bacillota
(-64%)
an
Proteobacteria
(+62%),
dominated
by
Pseudomonas
(45%)
Marinobacter
(16%).
These
findings
provide
insight
into
selective
potential
cycles
enhance
composition
improve
performance
treatment.
