International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(24), P. 13702 - 13702
Published: Dec. 22, 2024
This
study
aimed
to
investigate
the
impact
of
nitrogen
(N)
fertilizer
on
bacterial
community
composition
and
diversity
in
rhizosphere
endosphere
rice
at
different
growth
stages.
Two
treatments,
N0
(no
N
application)
N1
(270
kg
ha−1),
were
implemented,
with
samples
collected
during
jointing,
tasseling,
maturity
High-throughput
sequencing
was
used
analyze
structure
communities
associated
Huaidao
No.
5
(japonica
conventional
rice).
The
findings
indicated
that
root
zone
location
primary
factor
influencing
root-associated
communities.
Further
analysis
revealed
primarily
influenced
diversity,
while
more
significantly
affected
by
Rice
recruited
distinct
beneficial
bacteria
depending
stage.
Additionally,
relative
abundance
functional
genes
related
metabolism
not
application
270
ha−1.
These
offer
valuable
insights
into
how
affects
plant
across
Sustainability,
Journal Year:
2025,
Volume and Issue:
17(2), P. 626 - 626
Published: Jan. 15, 2025
Employing
crop
cultivars
with
low
cadmium
(Cd)
accumulation
and
high
yield
is
an
effective
strategy
for
the
sustainable
safe
utilization
of
Cd-contaminated
farmland.
However,
current
understanding
peanut
cultivars,
particularly
under
field
conditions,
limited.
This
study
identified
low-Cd
their
rhizosphere
microbial
characteristics
in
acidic
alkaline
fields
moderate
Cd
contamination.
The
results
indicated
that
LH11,
FH1,
LH14,
YH9414
exhibited
yield,
kernel
content
reduced
by
27.27%
to
47.28%
increased
9.27%
14.17%
compared
cultivar
SLH.
Among
them,
FH1
was
validated
achieve
production
two
fields.
A
unique
community
formed
recruitment
diverse
microbes,
such
as
Alphaproteobacteria,
Acidobacteria,
Gemmatimonadetes,
Chloroflexi,
soil
which
might
be
associated
immobilization
promotion
plant
growth.
Functional
predictions
further
these
findings,
revealing
enhanced
functional
pathways
related
proliferation,
stabilization,
detoxification.
provides
valuable
germplasm
resources
agriculture
Cd-polluted
soils
elucidates
different
conditions.
These
findings
are
important
targeted
management
contaminated
farmland
ensuring
food
production.
Salt
marshes
are
highly
dynamic
and
biologically
diverse
ecosystems
that
serve
as
natural
habitats
for
numerous
salt-tolerant
plants
(halophytes).
We
investigated
the
bacterial
communities
associated
with
roots
leaves
of
growing
in
coastal
salt
Daphne
Bay
area
Alabama,
United
States.
compared
external
(epiphytic)
internal
(endophytic)
both
leaf
root
plant
organs.
Using
16S
rDNA
amplicon
sequencing
methods,
we
identified
10
phyla
59
different
sequence
variants
(ASVs)
at
genus
level.
Bacterial
strains
belonging
to
Proteobacteria,
Bacteroidetes,
Firmicutes
were
abundant
samples.
At
level,
sequences
Pseudomonas
common
across
all
four
sample
types,
highest
abundance
found
endophytic
community.
Additionally,
Pantoea
was
be
dominant
tissue
roots.
Our
study
revealed
habitat
(internal
vs.
roots)
a
determinant
community
structure.
Co-occurrence
network
analyses
enabled
us
discern
intricate
characteristics
taxa.
analysis
varied
levels
ASV
complexity
epiphytic
networks
networks.
Overall,
this
advances
our
understanding
composition
microbiota
(epiphytic
endophytic)
organs
(leaf
root)
marsh
suggests
might
recruit
habitat-
organ-specific
bacteria
enhance
their
tolerance
stress.
Microorganisms,
Journal Year:
2024,
Volume and Issue:
12(8), P. 1595 - 1595
Published: Aug. 6, 2024
Salt
marshes
are
highly
dynamic
and
biologically
diverse
ecosystems
that
serve
as
natural
habitats
for
numerous
salt-tolerant
plants
(halophytes).
We
investigated
the
bacterial
communities
associated
with
roots
leaves
of
growing
in
coastal
salt
Bayfront
Beach,
located
Mobile,
Alabama,
United
States.
compared
external
(epiphytic)
internal
(endophytic)
both
leaf
root
plant
organs.
Using
16S
rDNA
amplicon
sequencing
methods,
we
identified
10
phyla
59
different
sequence
variants
(ASVs)
at
genus
level.
Bacterial
strains
belonging
to
Proteobacteria,
Bacteroidetes,
Firmicutes
were
abundant
samples.
At
level,
sequences
Pseudomonas
common
across
all
four
sample
types,
highest
abundance
found
endophytic
community.
Additionally,
Pantoea
was
be
dominant
tissue
roots.
Our
study
revealed
habitat
(internal
vs.
roots)
a
determinant
community
structure.
Co-occurrence
network
analyses
enabled
us
discern
intricate
characteristics
taxa.
analysis
varied
levels
ASV
complexity
epiphytic
networks
networks.
Overall,
this
advances
our
understanding
composition
microbiota
(epiphytic
endophytic)
organs
(leaf
root)
marsh
suggests
might
recruit
habitat-
organ-specific
bacteria
enhance
their
tolerance
stress.
Plants,
Journal Year:
2024,
Volume and Issue:
13(21), P. 2984 - 2984
Published: Oct. 25, 2024
Salt
stress
severely
inhibits
crop
growth
and
production.
The
native
turfgrass
species
Carex
rigescens
in
northern
China,
exhibits
extraordinary
tolerance
to
multiple
abiotic
stresses.
However,
little
is
known
about
its
specific
metabolites
pathways
under
salt
stress.
To
explore
the
molecular
metabolic
mechanisms
stress,
we
conducted
metabolome
analysis
combined
with
transcriptome
of
two
varieties
differing
tolerances:
salt-sensitive
Lvping
NO.1
salt-tolerant
NO.2.
After
5
days
treatment,
114
131
differentially
abundant
(DAMs)
were
found
NO.2,
respectively.
Among
them,
six
amino
acids
involved
acid
biosynthesis
pathway,
namely,
valine,
phenylalanine,
isoleucine,
tryptophan,
threonine,
serine,
accumulated
after
treatment.
Furthermore,
most
DAMs
related
phenylalanine
biosynthesis,
metabolism,
phenylpropanoid
increased
both
varieties.
expression
profiles
metabolism-associated
genes
consistent
profiles.
including
HCT,
β-glucosidases,
F5H,
metabolite
4-hydroxycinnamic
acid,
may
account
for
differences
tolerance.
Our
study
provides
new
insights
into
underlying
reveals
potential
improve
resilience
saline
environments.
Plants,
Journal Year:
2024,
Volume and Issue:
13(16), P. 2264 - 2264
Published: Aug. 15, 2024
Paulownia
fortunei
(Seem.)
Hemsl
is
a
Sieb.et
tree
of
the
family
Scrophulariaceae.
It
has
become
an
important
short-to-medium-term
fast-growing
multi-purpose
species
in
China
due
to
its
rapid
growth,
strong
adaptability,
and
excellent
material
properties.
MYB
transcription
factors
plants
have
numerous
diverse
functions,
playing
roles
various
aspects
such
as
plant
stress
response.
To
investigate
function
fortunei,
this
study
used
PCR
technology
clone
PfMYB44
gene
from
fortunei.
The
homology
SiMYB44
(Sesamum
indicum)
was
highest.
Expression
analysis
results
showed
that
expressed
root,
stem,
young
leaf,
mature
leaf
with
highest
content
root.
Cold,
drought,
hot,
salt,
ABA
treatments
could
increase
expression
level
PfMYB44.
Overexpression-PfMYB44
were
constructed,
physiological
molecular
positively
regulate
salt
drought
stresses.
Under
stress,
levels
AtP5CS,
AtCAT1,
AtNCED3
AtSnRK2.4
transgenic
lines
significantly
induced.
Salt
induced
AtNHX1,
AtSOS1,
AtSOS2
AtSOS3
genes,
relative
these
genes
Arabidopsis
higher.
In
conclusion,
functional
laid
certain
foundation
for
resistance,
helpful
resistance
mechanism
cultivation
new
varieties.
Plants,
Journal Year:
2024,
Volume and Issue:
13(20), P. 2839 - 2839
Published: Oct. 10, 2024
The
persistent
and
hazardous
nature
of
polycyclic
aromatic
hydrocarbons
(PAHs)
released
into
the
soil
has
become
a
critical
global
concern,
contributing
to
environmental
pollution.
In
this
study,
removal
efficiency
phenanthrene
naphthalene
degradation
by
complex
flora
or
pure
bacteria
combined
with
corn
their
effects
on
growth
corn,
pH,
number
were
investigated
using
pot
experiment.
results
indicate
that
remediation
method
(P)
outperformed
degrading
(B)
for
phenanthrene,
yet
combination
(PB)
exhibited
significantly
higher
efficiency.
PB
methods
increased
over
time,
ranging
from
58.40%
75.13%
after
30
days.
Naphthalene
showed
similar
trend.
Soil
influenced
methods,
experienced
slight
but
non-significant
increases.
notably
PB-W1
PB-W2
treatments.
Corn
accumulated
naphthalene,
concentrations
in
roots.
Remediation
slightly
PAH
accumulation,
indicating
potential
root
protection.
Biomass
yield
analysis
revealed
inhibitory
PAHs
growth,
decreased
bacteria.
PB-EF3
demonstrated
highest
fresh
weight
moisture
content
stem
leaf
biomass,
while
PB-F2-6
excelled
biomass.
Overall,
proved
more
effective,
which
underscores
consortium
efficient
contaminated
soil.
Plants,
Journal Year:
2024,
Volume and Issue:
13(17), P. 2409 - 2409
Published: Aug. 28, 2024
Soil
salinization
significantly
impacts
the
ecological
environment
and
agricultural
production,
posing
a
threat
to
plant
growth.
Currently,
there
are
over
400
varieties
of