Frontiers in Microbiology,
Journal Year:
2024,
Volume and Issue:
15
Published: Dec. 24, 2024
Organohalide-respiring
bacteria
(OHRB)
play
a
pivotal
role
in
the
transformation
of
organohalogens
diverse
environments.
This
bibliometric
analysis
provides
timely
overview
OHRB
research
trends
and
identifies
knowledge
gaps.
Publication
numbers
have
steadily
increased
since
process
was
discovered
1982,
with
fluctuations
total
citations
average
per
publication.
The
past
decade
witnessed
peak
publications,
underscoring
heightened
activity
extensive
collaboration.
Thematic
identified
two
primary
foci:
mechanistic
exploration
their
interplay
environmental
factors.
Future
should
prioritize
elucidating
roles
OHRB’s
biogeochemical
cycling,
utilizing
synthetic
biology
tools
for
enhanced
biotransformation,
deciphering
ecological
interactions,
unraveling
evolutionary
pathways,
investigating
dehalogenation
capabilities
other
microorganisms,
including
archaea.
These
directions
promise
to
advance
our
understanding
microbially-driven
organohalide
transformations,
microbial
ecology,
genetic
engineering
potential,
ultimately
informing
natural
cycling
management
strategies.
The
effectiveness
of
in
situ
bioremediation
can
be
affected
by
an
insufficient
understanding
high
site/soil
heterogeneity,
especially
cocontaminated
soils
and
sediments.
In
this
study,
samples
from
multiple
locations
within
a
relatively
small
area
(20
×
20
m2)
contaminated
with
benzene,
toluene,
ethylbenzene,
xylene
(BTEX)
chlorinated
aliphatic
hydrocarbons
(CAHs)
were
compared
to
examine
their
physicochemical
microbial
properties.
Unsupervised
clustering
analysis
16S
rRNA
gene
amplicon
metagenome
shotgun
sequencing
data
indicates
that
the
indigenous
community
differentiated
into
three
distinct
patterns.
Cluster
1,
Pseudomonas,
monooxygenases
glutathione
S-transferase
(GST),
was
enriched
concentrations
BTEX
CAHs.
2
contained
fraction
cometabolic
degraders.
3
dominated
Ralstonia
organohalide-respiring
bacteria
(OHRBs)
mediating
reductive
dechlorination
Significant
differences
composition
function
among
microbiomes
attributed
differential
distribution
organic
pollutants,
even
such
area.
Incorporating
genomic
features
significantly
enhance
heterogeneities
soil
impacts
on
communities,
thereby
providing
valuable
information
for
optimization
strategies.
