Abstract
Our
understanding
of
the
microbial
diversity
inhabiting
hypersaline
environments,
here
defined
as
containing
>100–150
g/L
salts,
has
greatly
increased
in
past
five
years.
Halophiles
are
found
each
three
domains
life.
Many
novel
types
have
been
cultivated,
and
metagenomics
other
cultivation-independent
approaches
revealed
existence
many
previously
unrecognized
lineages.
Syntrophic
interactions
between
different
phylogenetic
lineages
discovered,
such
symbiosis
members
archaeal
class
Halobacteria
‘
Candidatus
Nanohalarchaeota’.
Metagenomics
techniques
also
shed
light
on
biogeography
halophiles,
especially
genera
Salinibacter
(
Bacteria
)
Haloquadratum
Halorubrum
Archaea
).
Exploration
microbiome
lakes
led
to
discovery
metabolism
unknown
occur
at
high
salt
concentrations.
Studies
environments
with
concentrations
chaotropic
ions
magnesium,
calcium,
lithium
refined
our
limits
Abstract
The
domain
Archaea
was
initially
characterized
as
extremophiles
upon
its
proposal.
Recent
significant
discoveries
have
redrawn
our
views
of
archaeal
biology,
encompassing
the
identification
mesophilic
groups,
expansion
diversity
and
metabolic
capabilities,
elucidation
evolutionary
relationships
among
archaea,
bacteria,
eukaryotes.
are
ubiquitous
constitute
a
substantial
fraction
microbial
biomass
within
sediments.
Therefore,
comprehending
their
ecological
roles
is
paramount
for
understanding
contributions
to
global
geochemical
cycles.
In
this
review,
we
summarize
archaea
across
various
sediment
ecosystems,
from
terrestrial
inland
deep‐sea
environments,
utilizing
representative
genomes
supported
by
Genome
Taxonomy
Database,
which
encompasses
habitats
such
hot
springs,
salt
lakes,
freshwater
rivers,
mangroves,
estuaries,
coastal
regions,
seafloor
sediments,
cold
seeps,
hydrothermal
vents.
Furthermore,
integrate
analyses
with
recent
studies
highlight
potentials,
novel
enzymatic
functions,
related
carbon,
nitrogen,
sulfur
cycles
different
lineages.
Finally,
discuss
research
hotspots
achievements
in
studies,
while
projecting
future
exploration
directions.
expanding
capacities
broadened
perspective
on
tree
life
underscored
critical
impacts
ecosystems.
Biology,
Год журнала:
2025,
Номер
14(6), С. 615 - 615
Опубликована: Май 27, 2025
The
genus
Haloarcula
is
one
of
the
most
extensively
studied
genera
within
class
Halobacteria.
In
this
study,
analyses
average
nucleotide
identity
(ANI),
amino
acid
(AAI),
digital
DNA–DNA
hybridization
(dDDH)
values,
and
phylogenomic
data
indicated
that
“Haloarcula
californiae”
ATCC
33799
sinaiiensis”
33800
served
as
reference
strains
for
marismortui.
Furthermore,
a
halophilic
archaeal
strain,
GH36T,
isolated
from
inland
Gahai
Salt
Lake
in
China,
was
subjected
to
comprehensive
polyphasic
taxonomic
characterization.
ANI,
AAI,
dDDH
comparisons
between
strain
GH36T
other
species
were
below
established
thresholds
demarcation.
Strain
assigned
novel
based
on
phylogenetic,
phylogenomic,
comparative
genomic
analyses.
Moreover,
distinct
phenotypic
differences
observed
GH36T.
primary
phospholipids
detected
phosphatidylglycerol
(PG),
phosphate
methyl
ester
(PGP-Me),
sulfate
(PGS),
whereas
principal
glycolipids
sulfated
mannosyl
glucosyl
diether
(S-DGD-1)
(DGD-1).
Accordingly,
montana
sp.
nov.
proposed
accommodate
(=CGMCC
1.62631T
=
MCCC
4K00122T).
