Global Change Biology,
Journal Year:
2025,
Volume and Issue:
31(2)
Published: Feb. 1, 2025
ABSTRACT
Long‐term
climatic
differences
shape
the
ecological
memory
of
soil
bacterial
communities,
which
refers
to
ability
past
events
influence
current
environmental
responses.
However,
their
mechanisms
and
consequences
for
responses
changes
remain
largely
unknown,
particularly
in
terms
temporal
dynamics.
Therefore,
communities
arid
(Lhasa
River
Basin)
humid
(Nyang
grasslands
Qinghai‐Tibet
Plateau
were
compared
explore
dynamics
response
moisture
resulting
consequences.
Our
results
indicate
that
between
historical
determine
degree
divergence
community
composition
potential
function.
The
composition,
life
strategies,
functions
differed
with
history,
even
under
comparable
conditions.
In
contrast,
same
history
exhibited
similar
dynamics,
suggesting
has
an
important
on
This
phenomenon
may
be
caused
by
continuous
accumulation
strategies
as
informational
legacy,
regulating
future
patterns
thereby
affecting
biogeochemical
cycles
soil.
For
example,
relatively
regions
increase
dormancy,
when
environment
is
moist,
enhancing
ecosystem
resilience
improving
capacity
respond
drought
events.
study
provides
new
insights
into
bacteria,
emphasizing
its
critical
role
influencing
compositional
functional
changes.
It
highlights
significance
understanding
effect
predicting
disturbances
Science,
Journal Year:
2024,
Volume and Issue:
384(6694)
Published: April 25, 2024
Organisms
exhibit
extensive
variation
in
ecological
niche
breadth,
from
very
narrow
(specialists)
to
broad
(generalists).
Two
general
paradigms
have
been
proposed
explain
this
variation:
(i)
trade-offs
between
performance
efficiency
and
breadth
(ii)
the
joint
influence
of
extrinsic
(environmental)
intrinsic
(genomic)
factors.
We
assembled
genomic,
metabolic,
data
nearly
all
known
species
ancient
fungal
subphylum
Saccharomycotina
(1154
yeast
strains
1051
species),
grown
24
different
environmental
conditions,
examine
evolution.
found
that
large
differences
carbon
utilization
traits
yeasts
stem
genes
encoding
specific
metabolic
pathways,
but
we
limited
evidence
for
trade-offs.
These
comprehensive
argue
factors
shape
microbes.
Molecular Ecology,
Journal Year:
2024,
Volume and Issue:
33(7)
Published: Feb. 29, 2024
Abstract
Revealing
the
mechanisms
underlying
soil
microbial
community
assembly
is
a
fundamental
objective
in
molecular
ecology.
However,
despite
increasing
body
of
research
on
overall
mechanisms,
our
understanding
subcommunity
for
different
prokaryotic
and
fungal
taxa
remains
limited.
Here,
soils
were
collected
from
more
than
100
sites
across
southwestern
China.
Based
amplicon
high‐throughput
sequencing
iCAMP
analysis,
we
determined
various
taxa.
The
results
showed
that
dispersal
limitation
homogenous
selection
primary
drivers
this
region.
highly
variable.
For
instance,
contribution
to
Crenarchaeota
was
70%,
but
it
only
around
10%
Actinomycetes,
Gemmatimonadetes
Planctomycetes.
subcommunities
including
with
higher
occurrence
frequencies,
average
relative
abundance
network
degrees,
as
well
wider
niches
tended
be
influenced
by
homogenizing
drift,
less
affected
heterogeneous
limitation.
also
varied
substantially
among
functional
guilds.
Notably,
diazotrophs,
nitrifiers,
saprotrophs
some
pathogens
predominantly
controlled
selection,
while
denitrifiers
mainly
stochastic
processes
such
drift.
These
findings
provide
novel
insights
into
diversity
maintenance
analysis
pipeline
holds
significant
value
future
research.
Microbiome,
Journal Year:
2024,
Volume and Issue:
12(1)
Published: June 5, 2024
Abstract
Background
Plant
microbiota
contributes
to
plant
growth
and
health,
including
enhancing
resistance
various
diseases.
Despite
remarkable
progress
in
understanding
diseases
plants,
the
precise
role
of
rhizosphere
watermelon
against
soil-borne
remains
unclear.
Here,
we
constructed
a
synthetic
community
(SynCom)
16
core
bacterial
strains
obtained
from
grafted
plants.
We
further
simplified
SynCom
investigated
bacteria
with
synergistic
interactions
promoting
through
simple
community.
Results
Our
results
demonstrated
that
significantly
enhanced
disease
ungrafted
grown
non-sterile
soil.
Furthermore,
analysis
amplicon
metagenome
data
revealed
pivotal
Pseudomonas
as
evidenced
by
significant
increase
relative
abundance
biofilm-forming
pathways
post-SynCom
inoculation.
Based
on
vitro
co-culture
experiments
metabolomic
analysis,
selected
along
seven
other
members
exhibited
effects
.
It
enabled
us
refine
initially
into
comprising
eight
species.
Notably,
plant-promoting
were
similar
those
initial
SynCom.
protected
plants
bacteria.
Conclusions
findings
suggest
proliferate
mitigate
microbial
interactions,
highlighting
potential
between
microorganisms
health.
This
study
provides
novel
insight
using
functional
promising
solution
for
sustainable
agriculture.
Proceedings of the National Academy of Sciences,
Journal Year:
2024,
Volume and Issue:
121(45)
Published: Oct. 28, 2024
Microplastic
is
globally
regarded
as
an
important
factor
impacting
biogeochemical
cycles,
yet
our
understanding
of
such
influences
limited
by
the
uncertainties
intricate
microbial
processes.
By
multiomics
analysis,
coupled
with
soil
chemodiversity
characterization
and
carbon
use
efficiency
(CUE),
we
investigated
how
responses
to
microplastics
impacted
cycling
in
a
long-term
field
experiment.
We
showed
that
biodegradable
promoted
organic
accrual
average
2.47%,
while
nondegradable
inhibited
it
17.4%,
consequence
virus–bacteria
coadaptations
disturbance.
In
relevant
functional
pathways,
significantly
(
P
<
0.05)
enhanced
abundance
transcriptional
activity
related
complex
carbohydrate
metabolism,
whereas
functions
involved
amino
acid
metabolism
glycolysis.
Accordingly,
viral
lysis
treatments
introduce
more
compounds
dissolved
matters,
thus
benefiting
oligotrophs
high
metabolic
capabilities
exploitation
competition.
contrast,
enriched
auxiliary
genes
through
“piggyback-the-winner”
strategy,
conferring
dominant
copiotrophs,
substrate
utilization
capabilities.
These
virus–host
interactions
were
also
demonstrated
corresponding
plastisphere,
which
would
alter
resource
allocation
via
CUE,
affecting
storage
consequently.
Overall,
results
underscore
importance
viral–host
microplastics-dependent
ecosystem.
Global Ecology and Biogeography,
Journal Year:
2023,
Volume and Issue:
32(11), P. 2017 - 2032
Published: Sept. 6, 2023
Abstract
Aim
The
geographical
distribution
of
bacteria
is
an
important,
but
poorly
understood,
topic
in
microbial
ecology.
A
major
question
how
broadly
distributed
generalist
taxa,
and
limitedly
specialist
vary
across
a
latitudinal
gradient
freshwater
ecosystems.
We
predict
that:
(a)
generalists
specialists
exhibit
diversity
with
different
patterns;
(b)
their
community
assemblies
are
mainly
driven
by
stochastic
processes;
(c)
coexist
through
niche
differences,
while
fitness
differences.
Location
Sixty
lakes
reservoirs
China,
ranging
from
18°
N
to
50°
N.
Time
Period
July–August
2012
2018.
Taxa
Studied
Bacterioplankton.
Methods
clustered
zero‐radius
operational
taxonomic
unit
(zOTU)
(subspecies‐like
level)
into
(OTU)
(species‐like
calculated
the
intra‐specific
variation
spatial
asynchrony
OTU.
examined
relative
effects
environment
versus
space
(latitude)
on
bacterial
quantified
assembly
processes
specialists,
respectively.
binary‐state
speciation
extinction
(BiSSE)
model
has
been
used
estimate
evolutionary
characteristics.
abundances
top
zOTUs
within
each
OTU
were
identified
reveal
preferences
(distribution
patterns
at
sites).
Results
found
that
had
higher
variation,
greater
wider
width
than
specialists.
With
increasing
latitude,
decreased
abundance
variations
occurrence
Diversification
was
main
driving
factor
both
groups,
though
deterministic
showed
local
communities.
Bacterial
coexisted
whereas
average
Main
Conclusions
demonstrated
distinct
These
results
highlight
differences
biogeography
taxa
mediated
emphasize
distinctly
vital
roles
differing
mechanisms
