Hydrochemical gradients driving extremophile distribution in saline and brine groundwater of southern Poland
Environmental Microbiology Reports,
Год журнала:
2024,
Номер
16(5)
Опубликована: Окт. 1, 2024
Abstract
Extreme
environments,
such
as
highly
saline
ecosystems,
are
characterised
by
a
limited
presence
of
microbial
communities
capable
tolerating
and
thriving
under
these
conditions.
To
better
understand
the
limits
life
its
chemical
microbiological
drivers,
brine
groundwaters
Na‐Cl
Na‐Ca‐Cl
types
with
notably
diverse
SO
4
contents
were
sampled
in
water
intakes
springs
from
sedimentary
aquifers
located
Outer
Carpathians
Carpathian
Foredeep
basin
basement
Poland.
Chemical
methods
used
to
identify
composition
groundwaters,
determine
diversity,
indicate
processes
controlling
their
distribution
using
multivariate
statistical
analyses.
DNA
sequencing
targeting
V3‐V4
V4‐V5
gene
regions
revealed
predominance
Proteobacteriota,
Methanobacteria,
Methanomicrobia,
Nanoarchaea
most
samples,
irrespective
geological
context.
Despite
sample‐size
constraint,
redundancy
analysis
employing
compositional
approach
hydrochemical
predictors
identified
Cl/SO
Cl/HCO
3
ratios,
specific
electrical
conductivity,
key
gradients
shaping
communities,
depending
on
analysed
regions.
Analysis
functional
groups
that
methanogenesis,
sulphate
oxidation
reduction,
nitrogen
cycle
define
distinguish
halotolerant
samples.
These
an
inverse
relationship
between
methanogens
sulphur‐cycling
microorganisms.
Язык: Английский
Shaping chemodiversity: A unique spirochete symbiont of pyrroloiminoquinone-producing marine sponges
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Май 24, 2024
Bacterial
symbionts
are
critical
members
of
many
marine
sponge
holobionts.
Some
sponge-associated
bacterial
lineages,
such
as
Poribacteria,
SAUL,
and
Tethybacterales
appear
to
have
broad
host
ranges
associate
with
a
diversity
species,
while
others
more
species-specific,
having
adapted
the
niche
environment
their
host.
Host-associated
spirochete
that
numerically
dominant
been
documented
in
several
invertebrates
including
termites,
starfish,
corals.
However,
populations
rare
sponges,
thus
far
only
observed
Clathrina
clathrus
various
species
within
Latrunculiidae
family,
where
they
co-dominant
alongside
symbionts.
This
study
aimed
characterize
these
spirochetes
potential
role
sponge.
Analysis
metagenome-assembled
genomes
from
eight
latrunculid
sponges
revealed
unusual
relatively
recent
phylogenetically
distinct
other
spirochetes.
Functional
comparative
analysis
suggests
may
selected
for
due
ability
produce
terpenoids
and/or
possible
structural
contributions.
Язык: Английский
The unique and enigmatic spirochete symbiont of latrunculid sponges
mSphere,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 21, 2024
Bacterial
symbionts
are
critical
members
of
many
marine
sponge
holobionts.
Some
sponge-associated
bacterial
lineages,
such
as
Poribacteria,
unclassified
lineage
(SAUL),
and
Tethybacterales,
appear
to
have
broad-host
ranges
associate
with
a
diversity
species,
while
others
more
species-specific,
having
adapted
the
niche
environment
their
host.
Host-associated
spirochete
that
numerically
dominant
been
documented
in
several
invertebrates
including
termites,
starfish,
corals.
However,
populations
rare
sponges,
thus
far
observed
only
Язык: Английский