Frontiers in Environmental Science,
Journal Year:
2024,
Volume and Issue:
12
Published: March 6, 2024
Introduction:
Soil
ciliates,
as
protozoa,
play
a
crucial
role
in
biogeochemical
cycling
and
the
soil
food
web,
yet
they
are
highly
sensitive
to
environmental
fluctuations
conditions.
The
diversity
biogeographic
characteristics
of
ciliates
Tibetan
Plateau
remain
poorly
understood.
As
part
regional
survey
focused
on
ciliate
diversity,
we
investigated
composition
spatiotemporal
variations
communities
along
Yarlung
Zangbo
River,
representative
habitat
Plateau.
Methods:
A
total
290
samples
were
collected
from
four
types
grassland,
shrubland,
forestland
wetland
middle
reaches
River
during
wet
dry
seasons,
138
species
identified.
Results:
exhibited
greater
variation
across
than
seasons.
Moreover,
was
higher
season
compared
season,
with
showing
highest
grassland
displaying
lowest.
We
observed
heterogeneity
different
seasons
types.
Notably,
Litostomatea,
Karyorelictea,
Prostomatea
predominated
habitat.
Phyllopharyngers
dominated
forested
regions,
while
Spirotrichea
prevalent
areas.
co-occurrence
network
analysis
showed
that
community
more
complex
stability
season.
forestland,
shrubland
anti-interference
ability
stronger.
temperature
(ST),
Total
nitrogen
(TN),
organic
matter
(SOM)
water
content
(SWC)
important
factors
affecting
structure
community.
By
influencing
metabolic
rate
nutrient
acquisition
distribution
pattern
is
shaped.
Discussion:
In
summary,
this
study
revealed
Basin,
key
spatial
temporal
differences
community,
enhancing
our
understanding
how
adapt
conditions
habitats
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 8, 2025
Bacteria,
fungi,
archaea,
and
viruses
are
reflective
organisms
that
indicate
soil
health.
Investigating
the
impact
of
crude
oil
pollution
on
community
structure
interactions
among
bacteria,
in
Calamagrostis
epigejos
can
provide
theoretical
support
for
remediating
ecosystems.
In
this
study,
was
selected
as
research
subject
subjected
to
different
levels
addition
(0
kg/hm2,
10
40
kg/hm2).
Metagenomic
sequencing
technology
employed
analyze
diversity
viruses.
Additionally,
molecular
ecological
network
analysis
integrated
explore
species
ecosystem
stability
within
these
microbial
communities.
The
functional
profiles
microorganisms
were
elucidated
based
data
from
KEGG
database.
Results
demonstrated
a
significant
increase
petroleum
hydrocarbon
content,
polyphenol
oxidase
activity,
hydrogen
peroxide
enzyme
acid
phosphatase
activity
upon
addition,
while
β-glucosidase
fiber
disaccharide
hydrolase
tiller
number
decreased
(P
<
0.05).
Proteobacteria
Actinobacteria
identified
dominant
bacterial
phyla;
Ascomycota,
Basidiomycota,
Mucoromycota
found
be
fungal
Thaumarchaeota
emerged
archaeal
phylum;
Uroviricota
represented
viral
phylum.
bacterial,
fungal,
archaeal,
communities
increased
with
higher
amounts
added
oil.
Ecological
revealed
robust
collaborative
relationship
control
treatment
(CK),
strong
competitive
relationships
observed
treatments
10%
(F10)
40%
(F40)
concentrations.
Structural
equation
modeling
indicated
positive
correlations
between
community,
plant
growth;
conversely,
showed
negative
growth
Correlation
primary
environmental
factor
influencing
function.
Acid
along
number,
aboveground
biomass,
hydrocarbons
significantly
influenced
0.05),
underground
biomass
had
cellulose-hydrolyzing
enzymes,
exhibited
effects
This
study
investigated
variations
under
concentrations
well
their
driving
factors,
providing
foundation
evaluating
epigejos'
potential
remediate
pollution.
MycoKeys,
Journal Year:
2024,
Volume and Issue:
101, P. 191 - 232
Published: Jan. 19, 2024
Whilst
conducting
surveys
of
lignicolous
microfungi
in
Yunnan
Province,
we
collected
a
large
number
taxa
that
resemble
Montagnula
(Didymosphaeriaceae,
Pleosporales).
Our
phylogenetic
study
on
involved
analysing
sequence
data
from
ribosomal
RNA
genes
(nc18S,
nc28S,
ITS)
and
protein-coding
(
rpb
2,
tef
1-α).
We
present
biphasic
approach
(morphological
molecular
evidence)
supports
the
recognition
four
new
species
viz
.,
M.
lijiangensis
,
menglaensis
shangrilana
thevetiae
.
The
global
diversity
is
also
inferred
metabarcoding
published
records
based
field
observations.
Metabarcoding
GlobalFungi
observations
provided
insights
into
distribution
patterns
Studies
conducted
Asia,
Australia,
Europe,
North
America
revealed
concentration
species,
suggesting
regional
variations
ecological
preferences
distribution.
were
found
various
substrates,
with
sediments
yielding
high
sequences.
Poaceae
emerged
as
significant
contributor,
indicating
potential
association
between
grasses.
Culture-based
investigations
previously
associations
105
plant
genera
(in
45
families),
across
55
countries,
highlighting
their
wide
range
adaptability.
This
enhances
our
understanding
taxonomy,
distribution,
species.
It
emphasizes
role
decomposition
organic
matter
grasslands
savannah
systems
suggests
further
investigation
functional
roles
ecosystem
processes.
interactions
underscore
need
for
continued
research
conservation
efforts.
Journal of Agricultural and Food Chemistry,
Journal Year:
2024,
Volume and Issue:
72(30), P. 16674 - 16686
Published: July 18, 2024
The
potential
impacts
of
biodegradable
and
nonbiodegradable
microplastics
(MPs)
on
rhizosphere
microbial
nitrogen
(N)
transformation
processes
remain
ambiguous.
Here,
we
systematically
investigated
how
(polybutylene
succinate,
PBS)
MPs
(polyethylene,
PE)
affect
N
by
determining
soil
indicators
typical
Glycine
max
(soybean)-soil
(i.e.,
red
brown
soils)
systems.
Our
results
show
that
altered
pH
dissolved
organic
carbon
in
MP/soil
type-dependent
manners.
Notably,
soybean
growth
displayed
greater
sensitivity
to
1%
(w/w)
PBS
MP
exposure
than
since
acidified
the
impeded
nutrient
uptake
plants.
In
rhizosphere,
negatively
impacted
community
composition
diversity,
weakened
(mainly
denitrification
ammonification),
disrupted
metabolism.
Overall,
it
is
suggested
MPs,
compared
can
more
significantly
influence
ecological
function
plant-soil
system.
Environmental Technology & Innovation,
Journal Year:
2024,
Volume and Issue:
36, P. 103744 - 103744
Published: July 14, 2024
Deep-sea
environments
are
featured
by
low
temperature
and
high
hydrostatic
pressure,
which
inhibits
petroleum
hydrocarbon
metabolism
microorganisms.
Herein,
we
developed
novel
bioremediating
agents
composed
of
different
combinations
Pseudomonas
zhaodongensis
dimethylsulfoniopropionate
(DMSP)
to
promote
oil
degradation
at
deep-sea
microcosm
environment.
First,
through
transcriptome
sequencing,
revealed
DMSP
might
provide
pressure
protection
via
secretion
potential
piezolytes
within
the
cell,
let
bacteria
healthy
growth
thereby
promoted
biodegradation.
Then,
measurement
high-throughput
assessed
effectiveness
on
using
studied
indigenous
microorganism
(i.e.,
natural
remediation)
restore
oil-contaminated
muddy
sandy
sediments
microcosm,
demonstrated:
1)
Oil
efficiency
among
treatments
was
23.47
%
–
41.02
higher
than
that
in
remediation;
2)
Each
remediation
plan
defined
specialized
bacterial
community.
Marinobacter,
Idiomarina,
Sulfitobacter,
Ferrimonas,
Halodesulfovibrio,
Paramaledivibacter
were
keystone
oil-degrading
taxa;
3)
Overall,
microbial
community
sediment
samples
treated
bioremediation
obtained
better
diversification
trophic
interactions,
structure
stability
interference
resistance;
4)
Compared
remediation,
pathways
involving
component
biogeochemical
cycling
exhibited
varying
degrees
up-regulation
agent-treated
groups.
Altogether,
these
results
emphasize
crucial
role
P.
enhancing
oil-polluted
typical
condition,
a
idea
for
in-situ
restoration
pollution
deep
sea
future.
