SSRN Electronic Journal,
Год журнала:
2022,
Номер
unknown
Опубликована: Янв. 1, 2022
Diesel
fuel
bioremediation
in
polluted
seawater
is
extremely
challenging,
especially
at
low
temperatures.
Here,
we
isolated
bacterial
consortia
from
rhizosphere
soil
of
Deschampsia
antarctica
(Livingston
Island)
with
the
ability
to
metabolize
petroleum
hydrocarbons,
including
naphthalene,
anthracene,
phenanthrene,
and
n-alkanes.
The
LR-30
(30ºC)
LR-10
(10ºC)
communities
also
degraded
33.4
31.2
(g/L)
out
50
(gDiesel/L)
seawater,
respectively,
7-day
batch
bioreactors.
Profiles
16S
rRNA
gene
sequencing
revealed
that
dominating
genera
community
end
process
were
Achromobacter
(49.3%),
Pseudomonas
(16.7%)
Rhodonobacter
(16.3%),
whereas
for
consortium
(75.3%)
(12.1%)
predominant
members.
Both
microbial
secreted
emulsifying
agents
enabled
access
hydrophobic
hydrocarbon
compounds.
We
developed
a
continuous
diesel
biodegradation
where
bioremediated
an
unprecedent
rate
(34.4
g/L
day),
while
achieved
(24.5
day).
abundance
fluctuated
before
reaching
steady-state,
yet
microbes
redundant
terms
metabolic
capacities
catabolism,
exhibiting
similar
composition
those
found
but
differed
some
composing
compared
Journal of Degraded and Mining Lands Management,
Год журнала:
2023,
Номер
10(2), С. 4061 - 4061
Опубликована: Янв. 1, 2023
Small-scale
gold
mining
activities
in
Indonesia
still
use
amalgamation
techniques,
which
have
the
potential
to
cause
mercury
(Hg)
pollution
and
affect
quality
number
of
microorganisms.
Mercury-resistant
bacteria
can
survive
adapt
mercury-exposed
environments
be
developed
as
bioremediation
agents.
The
activity
these
increased
through
immobilization
using
biochar.
results
observations
physicochemical
qualities
three
samples
area,
showed
significant
differences.
TOC
rhizosphere
soil
sample
<em>Calliandra
calothyrsus</em>
L.
significantly
highest
value
at
14.5%,
pH
indicated
acidity
exhibited
no
difference
(p<0.05).
concentration
measured
tailing
was
9.9
ng/g
heterotrophic
7.2
×
10<sup>8</sup>
CFU/g.
On
other
hand,
mercury-resistant
6.3
10<sup>3</sup>
In
selection
based
on
toxicity
profile
30
obtained,
were
observed
LMP1B5
bacterial
isolate
from
river
sediment,
with
50%
effective
(EC50)
minimum
inhibitory
(MIC)
values
225
250
mg/L,
respectively.
Polyphasic
identification
phenotypic
genotypic
characteristics
16S
rRNA
gene
that
identified
<em>Escherichia
fergusonii</em>.
growth
removal
<em>E.
fergusonii</em>
by
21%
52%,
respectively,
after
Thus,
immobilized
<em>E</em>.<em>
removing
pollutants.
SSRN Electronic Journal,
Год журнала:
2022,
Номер
unknown
Опубликована: Янв. 1, 2022
Diesel
fuel
bioremediation
in
polluted
seawater
is
extremely
challenging,
especially
at
low
temperatures.
Here,
we
isolated
bacterial
consortia
from
rhizosphere
soil
of
Deschampsia
antarctica
(Livingston
Island)
with
the
ability
to
metabolize
petroleum
hydrocarbons,
including
naphthalene,
anthracene,
phenanthrene,
and
n-alkanes.
The
LR-30
(30ºC)
LR-10
(10ºC)
communities
also
degraded
33.4
31.2
(g/L)
out
50
(gDiesel/L)
seawater,
respectively,
7-day
batch
bioreactors.
Profiles
16S
rRNA
gene
sequencing
revealed
that
dominating
genera
community
end
process
were
Achromobacter
(49.3%),
Pseudomonas
(16.7%)
Rhodonobacter
(16.3%),
whereas
for
consortium
(75.3%)
(12.1%)
predominant
members.
Both
microbial
secreted
emulsifying
agents
enabled
access
hydrophobic
hydrocarbon
compounds.
We
developed
a
continuous
diesel
biodegradation
where
bioremediated
an
unprecedent
rate
(34.4
g/L
day),
while
achieved
(24.5
day).
abundance
fluctuated
before
reaching
steady-state,
yet
microbes
redundant
terms
metabolic
capacities
catabolism,
exhibiting
similar
composition
those
found
but
differed
some
composing
compared
