Frontiers in Microbiology,
Год журнала:
2025,
Номер
16
Опубликована: Фев. 19, 2025
Uranium
mining
presents
significant
environmental
challenges,
particularly
through
radiological
contamination
affecting
soil
and
water
bodies.
While
microbial
communities
are
known
to
be
influenced
by
geochemical
factors
like
pH
nutrient
availability,
their
responses
severe
uranium
in
mine
tailing
environments
remain
poorly
understood.
This
study
investigated
community
distributions
soils
ores
at
four
sites
South
China
explore
adaptations
contamination.
concentrations
ranged
from
170
18,000
mg/kg,
with
the
most
severely
contaminated
samples
dominated
Cyanobacteria,
which
comprised
up
49.17%
of
community.
Proteobacteria,
such
as
Sphingomonas,
were
also
abundant,
indicating
roles
radiation
resistance,
while
Acidobacteriota
Actinobacteria
showed
negative
uranium.
Addition
lime
neutralize
acidity
tailings
led
an
increase
Gemmatimonadaceae,
a
family
commonly
found
under
oligotrophic
conditions.
Multivariate
statistical
analyses
confirmed
concentration
primary
factor
influencing
composition,
along
values,
total
nitrogen,
contents
Fe2O3
SiO2
soils.
Co-occurrence
network
analysis
suggested
that
extremely
high
disrupted
interrelationships,
reflecting
lived
more
independently
adopted
strategies
cope
intense
selective
pressure.
Intriguingly,
dispersal
limitation
governed
90%
assembly
high-uranium
(>10,000
mg/kg),
suggesting
isolated
ecological
niches.
Deterministic
processes
heterogeneous
homogeneous
selection
only
relatively
moderate
low
levels.
These
findings
provide
insights
into
dynamics
uranium-contaminated
related
bioremediation
strategies.
