Canadian Journal of Microbiology,
Год журнала:
2023,
Номер
70(3), С. 70 - 85
Опубликована: Дек. 14, 2023
The
grasslands
in
North
China
are
rich
fungal
resources.
However,
the
knowledge
of
structure
and
function
communities
role
microbial
vegetation
restoration
succession
limited.
Thus,
we
used
an
Illumina
HiSeq
PE250
high-throughput
sequencing
platform
to
study
changing
characteristics
soil
degraded
grasslands,
which
were
categorized
as
non-degraded
(ND),
lightly
degraded,
moderately
severely
(SD).
Moreover,
a
correlation
analysis
between
physical
chemical
properties
was
completed.
results
showed
that
number
plant
species,
coverage,
aboveground
biomass,
diversity
index
decreased
significantly
with
increasing
degradation,
there
significant
differences
among
different
grasslands.
dominant
phyla
grassland
follows:
Ascomycota,
44.88%-65.03%;
Basidiomycota,
12.68%-29.91%;
unclassified,
5.51%-16.91%.
fungi
Mortierella,
6.50%-11.41%;
Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Фев. 29, 2024
Plant
health
states
may
influence
the
distribution
of
rhizosphere
microorganisms,
which
regulate
plant
growth
and
development.
In
this
study,
response
bacteria
fungi
healthy
diseased
plants
compared
to
bulk
microbes
was
analyzed
using
high-throughput
sequencing.
adaptation
strategies
under
potato
virus
Y
(PVY)
infection
have
been
studied
from
a
microbial
perspective.
The
diversity
community
structure
varied
between
soils,
but
not
soils.
A
LEfSe
analysis
revealed
significant
differences
different
treatments
on
bacterial
fungal
compositions
identified
Roseiflexaceae,
Sphingomonas
,
Sphingobium
as
biomarkers
(BCK),
(BHS),
(BIS)
respectively;
Rhodotorula
Ascomycota_unidentified_1_1
were
(FCK)
(FHS)
Bacterial
networks
found
be
more
complex
compact
than
roles
network
keystone
taxa.
PVY
further
increased
connectedness
among
taxa
improve
stability
resistance
environmental
stress.
Additionally,
water
content
(WC)
played
an
apparent
diversity,
pH
showed
effects
diversity.
WC
greatly
affected
communities,
whereas
communities
significantly
by
soil
nutrients,
especially
for
.
Overall,
enrichment
processes
changing
identifying
biomarkers.
These
findings
provide
insight
into
assemblage
physicochemical
properties,
contributes
deeper
understanding
establishment
artificial
core
root
microbiota
facilitate
bolstering
mechanisms.
This
knowledge
microbiota,
thereby
facilitating
Agronomy,
Год журнала:
2024,
Номер
14(6), С. 1297 - 1297
Опубликована: Июнь 15, 2024
The
Northeast
China
Plain
(NCP)
is
the
country’s
most
important
grain-producing
area.
Unraveling
how
bacterial
communities
in
this
region
assemble
and
distribute
according
to
soil
type
essential
for
sustainable
agricultural
development
optimizing
precise
management
of
resources.
In
study,
106
samples
were
collected
from
three
typical
zonal
types
(black
calcium
(BCS),
black
(BS),
dark
brown
(DBS))
spanning
west
east
NCP.
By
combining
field
surveys
high-throughput
microbial
sequencing
analysis,
we
found
that
diversity
community
structure
differed
significantly
by
type.
Proteobacteria,
Gemmatimonadetes,
Acidobacteria
enriched
BCS,
BS,
DBS,
respectively.
Compared
BSC
BS
had
highest
nutrient
concentration
neutral
pH
values,
which
may
recruit
more
diverse
construct
a
connected
ecological
network.
Network
analysis
further
identified
Burkholderiales,
Sphingomonadales,
SC_I_84
as
key
hubs
majority
classified
consistent
with
results
linear
discriminant
effect
size
belonged
predominant
biomarkers.
Redundancy
Mantel
test
analyses
revealed
composition
various
showed
distinctive
responses
heterogeneity
physicochemical
properties.
Soil
TP
primary
factors
shaping
these
on
Moreover,
strongly
related
changes
multifunctionality
relative
abundances
classes
(TM1,
Opitutae,
Deinococci)
biotic
variables
predicting
BCS
ecosystem
multifunctionality.
summary,
our
suggest
variation
has
strong
influence
terms
affecting
Correspondingly,
co-occurrence
patterns
observed
different
types.
Frontiers in Environmental Science,
Год журнала:
2024,
Номер
12
Опубликована: Сен. 10, 2024
Few
studies
have
investigated
how
one-time
targeted
tillage
of
long-term
no-till
fields
impacts
topsoil
properties
and
weed
dynamics.
An
on-farm
trial
was
implemented
in
2020
to
test
the
effects
occasional
(OT)
Morocco
with
a
no-tillage
(NT)
system
rainfed
field
crops:
durum
wheat
(
Triticum
),
faba
bean
Vicia
minor),
chickpea
Cicer
arietinum
).
Four
treatments
were
established,
namely,
continuous
NT
crop
residues
maintained
(“NT
+
residue”);
not
(“NT-residue”);
shallow
inversion
(“shallow
OT”);
deep
non-inversion
(“deep
OT”).
We
assessed
effect
these
on
soil
physical
chemical
0–10
10–20
cm
depths
after
harvest
2020–2021
(year
1)
2021–2022
2)
growing
seasons
corresponding
1
2
years
OT,
respectively.
In
addition,
we
evaluated
populations
legume
rotated
nitrogen
(N)
density.
year
1,
OT
reduced
water
content
at
capacity
available
compared
NT;
cation-exchange
(CEC)
under
lower
than
NT-residue
residue
cm,
Furthermore,
increased
ammonium-N
(NH
4
-N)
but
exchangeable
potassium
(K)
depth
NT-residue.
2,
had
total
porosity
residue,
while
recorded
higher
water-stable
aggregates
residue;
CEC
residue.
However,
nitrate-N
(NO
3
sulfur
(S)
cm.
Occasional
did
significantly
affect
10
out
19
evaluated,
including
organic
matter
(SOM),
all
help
reduce
stratification
nutrients
NT.
50
days
density
by
46%
406
53%
Regarding
wheat,
appeared
be
better
preceding
or
following
as
it
resulted
residual
mineral
N
infestation
chickpea.
