Scientific Reports,
Journal Year:
2018,
Volume and Issue:
8(1)
Published: Jan. 5, 2018
Understating
the
microbial
communities
and
ecological
processes
that
influence
their
structure
in
permafrost
soils
is
crucial
for
predicting
consequences
of
climate
change.
In
this
study
we
investigated
bacterial
archaeal
along
depth
profiles
four
soil
cores
collected
across
Alaska.
The
diversity
(amplicon
sequencing)
overall
decreased
but
depth-wise
pattern
abundances
(qPCR)
varied
by
sites.
community
bacteria
archaea
displayed
site-specific
pattern,
with
a
greater
role
geochemical
characteristics
rather
than
depth.
particular,
found
significant
positive
correlations
between
methane
trapped
relative
abundance
methanogenic
genera,
indicating
strong
association
activity
production
subsurface
soils.
We
observed
phylogenetic
assembly
tended
to
be
more
clustered
surface
deeper
Analyses
turnover
among
indicated
deterministic
stochastic
was
mainly
determined
properties
Overall,
our
findings
emphasize
vertical
distributions
are
large
extent
variation
properties.
Scientific Reports,
Journal Year:
2017,
Volume and Issue:
7(1)
Published: Jan. 4, 2017
Abstract
Acidification
and
pollution
are
two
major
threats
to
agricultural
ecosystems;
however,
microbial
community
responses
co-existed
soil
acidification
remain
less
explored.
In
this
study,
arable
soils
of
broad
pH
(4.26–8.43)
polycyclic
aromatic
hydrocarbon
(PAH)
gradients
(0.18–20.68
mg
kg
−1
)
were
collected
from
vegetable
farmlands.
Bacterial
characteristics
including
abundance,
diversity
composition
revealed
by
quantitative
PCR
high-throughput
sequencing.
The
bacterial
16S
rRNA
gene
copies
significantly
correlated
with
carbon
nitrogen
contents,
suggesting
the
control
nutrients
accessibility
on
abundance.
was
strongly
related
pH,
higher
in
neutral
samples
lower
acidic
samples.
Soil
also
identified
an
ordination
analysis
as
important
factor
shaping
composition.
relative
abundances
some
dominant
phyla
varied
along
gradient,
enrichment
a
few
phylotypes
suggested
their
adaptation
low
condition.
contrast,
at
current
level,
PAH
showed
marginal
effects
community.
Overall,
these
findings
suggest
primary
determinant
soils,
indicative
more
substantial
influence
than
bacteria
driven
ecological
processes.
Applied and Environmental Microbiology,
Journal Year:
2020,
Volume and Issue:
87(4)
Published: Dec. 10, 2020
This
study
investigated
the
differences
in
microbial
community
abundance,
composition
and
diversity
throughout
depth
profiles
soils
collected
from
corn
soybean
fields
lowa,
USA
using
16S
rRNA
amplicon
sequencing.
The
results
revealed
decreased
richness
communities
at
increasing
soil
depth.
Soil
differed
due
to
crop
type
only
top
60
cm
location
90
cm.
While
relative
abundance
of
most
phyla
deep
soils,
phylum
FEMS Microbiology Ecology,
Journal Year:
2019,
Volume and Issue:
95(2)
Published: Jan. 8, 2019
Although
studies
of
elevational
diversity
gradient
for
microbes
have
attracted
considerable
attention,
the
generality
these
patterns
and
their
underlying
drivers
are
still
poorly
understood.
Here,
we
investigated
bacterial
distribution
across
a
high
(4328−5228
m
a.s.l.)
along
Nyainqêntanglha
mountains
on
Southwestern
Tibetan
Plateau.
We
found
decreasing
trend
with
increasing
elevation,
pH
contributing
most
to
variation,
followed
by
elevation
mean
annual
temperature
(MAT).
Bacterial
community
composition
differed
taxonomically
phylogenetically
elevation.
Furthermore,
partial
Mantel
analyzes
showed
that
was
significantly
influenced
MAT.
Phylogenetic
structure
analysis
indicated
deterministic
processes
(related
pH)
determined
assembly
this
gradient.
Our
results
reinforce
observed
rule
is
foremost
importance
in
driving
patterns.
also
suggest
absence
tree
cover
human
disturbance
might
be
important
allowing
an
reveal
itself.
Review
other
suggests
at
higher
elevations
generally
true
above
line.
mSystems,
Journal Year:
2020,
Volume and Issue:
5(2)
Published: April 13, 2020
Microbial
life
is
surprisingly
abundant
and
diverse
in
global
desert
ecosystems.
In
these
environments,
microorganisms
endure
a
multitude
of
physicochemical
stresses,
including
low
water
potential,
carbon
nitrogen
starvation,
extreme
temperatures.
this
review,
we
summarize
our
current
understanding
the
energetic
mechanisms
trophic
dynamics
that
underpin
microbial
function
Accumulating
evidence
suggests
dormancy
common
strategy
facilitates
survival
response
to
limitation.
Global Change Biology,
Journal Year:
2021,
Volume and Issue:
28(3), P. 1038 - 1047
Published: Dec. 4, 2021
Revealing
the
ecological
roles
of
core
microbiota
in
maintenance
functional
stability
soil
microbiomes
is
crucial
for
sustainable
ecosystem
functioning;
however,
there
a
dearth
whole-soil
profile
studies
on
fundamental
topic
microbial
ecology,
especially
context
restoration.
Here,
we
explored
whether
influence
temporal
changes
throughout
(i.e.,
depths
0-300
cm)
during
natural
succession
restored
ex-arable
ecosystems,
via
high-throughput
amplicon
and
metagenomic
sequencing.
We
revealed
that
were
essential
reforestation
ecosystems.
Specifically,
taxa
within
one
cluster
network,
which
had
similar
preferences,
major
contributions
to
stability.
Reforestation
significantly
decreased
microbiomes,
exhibited
significant
variations
along
vertical
reforested
soils.
Overall,
findings
enhance
our
understanding
factors
driving
suggests
should
be
considered
key
factor
integrated
policy
management
activities
targeting
enhancement
sustainability
restoration
programs.
