The process of nitrogen-adaptation root endophytic bacterial rather than phosphorus-adaptation fungal subcommunities construction unveiled the tomato yield improvement under long-term fertilization
Frontiers in Microbiology,
Год журнала:
2025,
Номер
15
Опубликована: Янв. 17, 2025
Interactions
between
endophytes
(endophytic
bacteria
and
fungi)
plants
are
crucial
in
maintaining
crop
fitness
agricultural
systems,
particularly
relation
to
abundant
rare
subcommunities
involved
community
construction.
However,
the
influence
of
long-term
fertilization
on
heterogeneous
rhizosphere
nitrogen
phosphorus
environments
how
these
conditions
affect
key
root
their
assembly
mechanisms
remain
unclear.
We
studied
26th
year
a
field
experiment
conducted
greenhouse
with
varying
levels
(CKP0,
CKP1,
CNP0,
CNP1,
ONP0,
ONP1)
assess
composition
tomato
impact
yield.
employed
16S
rRNA
fungal
ITS
region
amplicon
sequencing
investigate
endophytic
subcommunities,
network
correlations,
core
subcommunity
structures,
species
that
enhance
The
results
indicated
organic
manure
fertilizers
significantly
increased
soil
content,
availability
(labile
P,
moderately
labile
non-labile
P).
These
also
affected
(based
Bray-Curtis
distance)
processes
(βNTI)
microbial
subcommunities.
both
bacterial
was
primarily
governed
by
dispersal
limitation,
structures
being
regulated
content
available
(AN)
P
(MLP).
Rare
complemented
ecological
niches
co-occurrence
network,
supporting
functions
enhancing
stability.
Nitrogen-adapting
provided
stronger
predictive
correlation
for
yield
than
phosphorus-adapting
Additionally,
three
genera
such
as
Arthrobacter,
Microbacterium,
Sphingobium
were
identified
potentially
improving
improvement.
findings
revealed
distinct
fertilization,
our
understanding
better
management
practices
controlling
improve
intensive
ecosystems.
Язык: Английский
Impact of nitrogen fertilizer application on soil fungal diversity and maize yield variation in Shandong Province, China
Plant Stress,
Год журнала:
2024,
Номер
12, С. 100460 - 100460
Опубликована: Апрель 11, 2024
Maize
is
one
of
the
major
crops
cultivated
in
northern
Shandong
Province
and
contributes
significantly
to
China's
maize
production,
nitrogen
(N)
application
soil
can
have
a
marked
impact
on
yield
microbial
productivity.
The
current
environmental
challenge,
which
needs
urgently
be
addressed,
effectively
utilize
fertilizer
improve
crop
production
without
causing
stress
sustainable
agroecosystems.
Soil
fungi
plant
health
performance
through
improved
nutrient
uptake
reducing
levels.
How
N
influences
fungal
diversity
at
spatial
patterns
remains
unclear.
In
this
study,
different
treatments
yields
were
investigated
fields
five
rates
(from
0
120
kg
ha−1).
High-throughput
sequencing
internal
transcribed
spacer
(ITS)
region
revealed
that
α-
β-diversities
increased
80
ha−1
(N80)
but
decreased
control
(N0)
other
treatments.
Variations
NC
model
predicted
strong
distribution
(R2
=
0.60)
among
all
highest
proportion
operational
taxonomic
units
(OTUs)
(68.99%)
was
observed
N80.
study
also
found
complexity
co-occurrence
network
stabilized
N80,
decrease
N120.
showed
that,
relative
control,
addition
abundance
Ascomycota
phylum
level
Chaetomium,
Fusarium,
Mortierella
genus
levels,
with
average
abundances
5.82%,
1.67%,
19.58%,
respectively.
Functional
ecology
analysis
indicated
upregulated
composition
ecological
communities
by
stochastic
processes.
sub-communities
positively
correlated
nitrogen/carbon
cycling
Moreover,
results
(3.14
t
ha−1)
agronomic
effects
N80
higher
than
those
This
demonstrates
optimal
achieves
increases
both
yield,
contributing
sustainability
scales.
Язык: Английский
Certain soil fungi impact the biosynthesis of amylose in maize when manure is used instead of chemical fertilizer at equal levels of nitrogen
International Journal of Biological Macromolecules,
Год журнала:
2025,
Номер
unknown, С. 140321 - 140321
Опубликована: Янв. 1, 2025
Язык: Английский
Effect of Vegetation Degradation on Soil Nitrogen Components and N-Cycling Enzyme Activities in a Wet Meadow on the Qinghai–Tibetan Plateau
Plants,
Год журнала:
2025,
Номер
14(10), С. 1549 - 1549
Опубликована: Май 21, 2025
The
responses
of
soil
nitrogen
component
dynamics
and
enzyme
activities
to
vegetation
degradation
in
wet
meadows
ecosystems
remain
unclear.
This
study
employed
a
combination
field
surveys
laboratory
experiments
investigate
components
cycling
under
different
intensities
during
the
growth
season
meadow
on
Qinghai–Tibetan
Plateau.
aim
was
explore
their
interrelationships.
results
showed
that
significantly
reduced
TN,
NH4+-N,
MBN,
PRO,
NiR,
increased
NO3−-N,
URE,
NR.
Soil
exhibited
seasonal
fluctuations
across
levels
growing
season.
Pearson
correlation
analysis
revealed
significant
positive
between
temperature,
moisture,
fractions,
cycle-related
activities,
as
well
fractions
themselves.
Partial
Least
Squares
Path
Modeling
(PLS-PM)
elucidated
relationships
properties
levels,
explaining
78%
variance
components.
Degradation
level,
season,
physical
had
indirect
associations
with
components,
whereas
exerted
direct
influence
Our
research
universal
impact
mechanism
environmental
factors,
characteristics,
meadow,
thereby
making
contribution
restoration
maintenance
functional
integrity
alpine
wetland
ecosystems.
Язык: Английский
Response of the Endophytic Microbial Composition in Amaranthus Roots to Different Fertilization Treatments
Agronomy,
Год журнала:
2024,
Номер
14(5), С. 965 - 965
Опубликована: Май 3, 2024
To
explore
how
endophytic
microbial
compositions
in
amaranth
roots
are
influenced
by
various
fertilization
methods
and
to
determine
whether
these
microbes
associated
with
amaranthin
formation,
we
conducted
an
analysis
of
the
community
structure.
The
plants
subjected
different
treatments—conventional
without
potassium
(NP),
conventional
phosphorus
(NK),
nitrogen
(PK),
balanced
(NPK)—were
examined.
results
showed
that
proportions
Streptomyces,
Actinospica,
Burkholderia-Caballeronia-Paraburkholderia
under
(NPK)
treatment
were
all
greater
than
those
(NP)
deficiency
treatments.
In
contrast,
Phenylobacterium,
Acrocalymma,
Neocosmospora,
Fusarium,
Acidovorax,
Gibellulopsis,
Cladosporium,
Dactylonectria,
Gibberella
nutrient
(NP,
NK,
PK)
treatments
higher
treatment.
Additionally,
a
significantly
positive
correlation
was
found
between
Streptomyces
content.
Furthermore,
Fusarium
exhibited
negative
correlations
above
suggested
endophytes
could
easily
colonize
as
beneficial
microorganisms
conditions.
other
words,
(N,
P
K
fertilizers
188.0,
53.0
50.0
kg·hm−2,
respectively)
recruit
more
endogenous
for
improving
their
growth
quality.
Язык: Английский