Frontiers in Microbiology,
Journal Year:
2020,
Volume and Issue:
11
Published: Aug. 28, 2020
Archaea
are
diverse
and
ubiquitous
prokaryotes
present
in
both
extreme
moderate
environments.
Estuaries,
serving
as
links
between
the
land
ocean,
harbor
numerous
microbes
that
relatively
highly
active
because
of
massive
terrigenous
input
nutrients.
account
for
a
considerable
portion
estuarine
microbial
community.
They
play
key
roles
biogeochemical
cycles.
Ammonia-oxidizing
archaea
(AOA)
an
abundant
aquatic
archaeal
group
estuaries,
greatly
contributing
ammonia
oxidation.
Bathyarchaeota
sediments,
they
may
involve
sedimentary
organic
matter
degradation,
acetogenesis,
and,
potentially,
methane
metabolism,
based
on
genomics.
Other
groups
also
commonly
detected
estuaries
worldwide.
include
Euryarchaeota,
members
DPANN
Asgard
archaea.
Based
biodiversity
surveys
16S
rRNA
gene
some
functional
genes,
distribution
abundance
driven
by
physicochemical
factors,
such
salinity
oxygen
concentration.
Currently,
increasing
amount
genomic
information
is
becoming
available
advances
sequencing
technologies,
especially
AOA
Bathyarchaeota,
leading
to
better
understanding
their
functions
environmental
adaptations.
Here,
we
summarized
current
knowledge
community
composition
major
focusing
Bathyarchaeota.
We
highlighted
unique
features
potential
adaptation
strategies
archaea,
pointing
out
unknowns
field
scope
future
research.
Frontiers in Microbiology,
Journal Year:
2020,
Volume and Issue:
11
Published: Feb. 26, 2020
Bathyarchaeota,
a
recently
proposed
archaeal
phylum,
is
globally
distributed
and
highly
abundant
in
anoxic
sediments.
Metabolic
pathways
of
the
Bathyarchaeota
members
are
diverse
and,
hence,
this
phylum
has
been
to
play
an
important
role
global
biogeochemical
cycles.
estuarine
environments.
However,
limited
information
available
about
their
detailed
community
structure,
abundance,
functions
Pearl
River
estuary
(PRE).
In
current
study,
we
performed
comprehensive
investigation
PRE
surface
sediments
along
salinity
gradient,
with
focus
on
Bathyarchaeota.
was
dominant
abundance
bathyarchaeotal
16S
rRNA
gene
ranging
from
1.43×108
1.22×109
copies/g
sediment
dry
weight
(d.w.),
Bathy-8
subgroup.
Thaumarchaeota,
Lokiarchaeota,
Euryarchaeota,
including
Thermoprofundales
(MBG-D
archaea),
were
other
major
groups
PRE.
The
differences
distributions
high-
low-salinity
hence
investigated.
Statistical
analysis
revealed
that
besides
salinity,
ammonium
total
organic
carbon
(TOC)
most
environmental
factors
influencing
archaea
network
indicated
cooccurrence
among
while
Bathy-6
presented
unique
correlations
compared
subgroups.
These
observations
indicate
may
ecosystem
function
through
microbe-microbe
interactions,
revealing
possible
different
lifestyle
for
eutrophic
Applied and Environmental Microbiology,
Journal Year:
2021,
Volume and Issue:
87(9)
Published: Feb. 18, 2021
The
exploration
of
deep
marine
sediments
has
unearthed
many
new
lineages
microbes.
finding
this
novel
phylum
Asgard
archaea
is
important,
since
understanding
the
diversity
and
evolution
may
inform
also
about
eukaryotic
cells.
comparison
metabolic
potentials
can
help
selective
pressures
have
faced
during
evolution.
Critical Reviews in Microbiology,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 21
Published: Feb. 22, 2024
Microbes
represent
the
most
common
organisms
on
Earth;
however,
less
than
2%
of
microbial
species
in
environment
can
undergo
cultivation
for
study
under
laboratory
conditions,
and
rest
enigmatic,
world
remains
mysterious,
constituting
a
kind
“microbial
dark
matter”
(MDM).
In
last
two
decades,
remarkable
progress
has
been
made
culture-dependent
culture-independent
techniques.
More
recently,
studies
MDM
have
relied
techniques
to
recover
genetic
material
through
either
unicellular
genomics
or
shotgun
metagenomics
construct
single-amplified
genomes
(SAGs)
metagenome-assembled
(MAGs),
respectively,
which
provide
information
about
evolution
metabolism.
Despite
past
functional
diversity
still
uncharacterized.
This
review
comprehensively
summarizes
recently
developed
characterizing
MDM,
discussing
major
challenges,
opportunities,
potential
applications.
These
activities
contribute
expanding
our
knowledge
implications
various
fields
including
Biotechnology,
Bioprospecting,
Functional
genomics,
Medicine,
Evolutionary
Planetary
biology.
Overall,
this
aims
peel
off
layers
from
shed
light
recent
advancements,
identify
future
illuminate
exciting
opportunities
that
lie
ahead
unraveling
secrets
intriguing
realm.
Frontiers in Microbiology,
Journal Year:
2020,
Volume and Issue:
11
Published: Aug. 28, 2020
Archaea
are
diverse
and
ubiquitous
prokaryotes
present
in
both
extreme
moderate
environments.
Estuaries,
serving
as
links
between
the
land
ocean,
harbor
numerous
microbes
that
relatively
highly
active
because
of
massive
terrigenous
input
nutrients.
account
for
a
considerable
portion
estuarine
microbial
community.
They
play
key
roles
biogeochemical
cycles.
Ammonia-oxidizing
archaea
(AOA)
an
abundant
aquatic
archaeal
group
estuaries,
greatly
contributing
ammonia
oxidation.
Bathyarchaeota
sediments,
they
may
involve
sedimentary
organic
matter
degradation,
acetogenesis,
and,
potentially,
methane
metabolism,
based
on
genomics.
Other
groups
also
commonly
detected
estuaries
worldwide.
include
Euryarchaeota,
members
DPANN
Asgard
archaea.
Based
biodiversity
surveys
16S
rRNA
gene
some
functional
genes,
distribution
abundance
driven
by
physicochemical
factors,
such
salinity
oxygen
concentration.
Currently,
increasing
amount
genomic
information
is
becoming
available
advances
sequencing
technologies,
especially
AOA
Bathyarchaeota,
leading
to
better
understanding
their
functions
environmental
adaptations.
Here,
we
summarized
current
knowledge
community
composition
major
focusing
Bathyarchaeota.
We
highlighted
unique
features
potential
adaptation
strategies
archaea,
pointing
out
unknowns
field
scope
future
research.
