Frontiers in Microbiology,
Journal Year:
2022,
Volume and Issue:
13
Published: Nov. 10, 2022
Soil
microenvironments
and
plant
varieties
could
largely
affect
rhizosphere
microbial
community
structure
functions.
However,
their
specific
effects
on
the
tea
are
yet
not
clear.
Beneficial
microorganisms
important
groups
of
communities
that
hold
ecological
functionalities
by
playing
critical
roles
in
disease
resistance,
environmental
stress
tolerance.
Longjing43
Zhongcha108
two
widely
planted
China.
Although
shows
higher
resistance
than
Longjing43,
potential
role
beneficial
microbes
is
unknown.
In
this
study,
function
these
were
compared
using
Illumina
MiSeq
sequencing
(16S
rRNA
gene
ITS)
technologies.
Rhizosphere
soil
was
collected
from
four
independent
gardens
distributed
at
locations
Hangzhou
Shengzhou
cities
eastern
China,
both
separate
gardens.
Significant
differences
physicochemical
properties
as
demonstrated
ANOVA
PCA,
distinct
multiple-biotech
analyses
(PCoA,
LEfSe,
Co-occurrence
network
analyses)
between
(p
<
0.01)
found.
Functions
bacteria
annotated
FAPROTAX
database,
a
abundance
Nitrososphaeraceae
relating
to
found
Hangzhou.
LDA
effect
size
showed
arbuscular
mycorrhizal
fungi
(AMF)
Longjing43.
Field
experiments
further
confirmed
colonization
rate
AMF
Zhongcha108.
This
finding
testified
be
major
potentially
enhanced
resistance.
Overall,
our
results
affected
greater
varieties,
might
more
sensitive
change
microenvironments.
Furthermore,
we
several
microorganisms,
which
great
significance
improving
environment
plants.
These
may
also
help
reveal
mechanism
useful
for
mitigating
climate
change-associated
challenges
future.
Ecotoxicology and Environmental Safety,
Journal Year:
2023,
Volume and Issue:
266, P. 115549 - 115549
Published: Oct. 9, 2023
The
effects
of
root
exudates
and
irrigation
with
treated
wastewater
on
heavy
metal
mobility
soil
bacterial
composition
under
intercropping
remain
poorly
understood.
We
conducted
a
pot
experiment
maize
soybean
grown
in
monocultures
or
intercultures,
irrigated
either
groundwater
wastewater.
In
addition,
the
pre-collected
from
hydroponic
culture
mono-
inter-cropped
were
applied
to
at
four
levels
(0
%,
16
32
%
64
%).
results
showed
that
application
increased
plant
growth
nutrient
content.
analysis
"Technique
for
Order
Preference
by
Similarity
Ideal
Solution"
higher
biomass
lower
Cd
Pb
concentrations
indicated
best
performance
was
recorded
exudates,
score
0.926
0.953
Pb,
respectively.
second-best
also
observed
exudates.
Root
exudate
reduced
metals
migration
soil-plant
system,
greater
impact
than
monocropping.
certain
microorganisms
application,
regardless
water.
This
study
suggests
appropriate
could
potentially
improve
health,
reduce
toxic
soils
plants
Environmental Science and Pollution Research,
Journal Year:
2023,
Volume and Issue:
30(17), P. 49498 - 49511
Published: Feb. 13, 2023
Abstract
The
contamination
of
soil
and
water
by
metals
such
as
mercury
(Hg)
cadmium
(Cd)
has
been
increasing
in
recent
years,
because
anthropogenic
activities
mining
agriculture,
respectively.
In
this
work,
the
changes
rhizosphere
microbiome
Lolium
perenne
L.
during
phytoremediation
soils
contaminated
with
Hg
Cd
were
evaluated.
For
this,
two
types
sampled,
one
inoculated
mycorrhizae
without.
Cd,
seeds
sown
harvested
after
30
days.
To
assess
microbiome,
DNA
isolation
tests
performed,
for
which
samples
subjected
to
two-step
PCR
amplification
specific
16S
rDNA
V3-V4
primers
(337F
805R).
With
mycorrhizae,
had
found
absorption
processes
a
new
distribution.
While
respect
microorganisms,
families
Enterobacteriaceae
have
shown
biosorption
efflux
effects
on
Cd.
Mycorrhizae
then
improve
efficiency
removal
allow
plant
better
distribute
absorbed
concentrations.
Overall,
is
species
high
potential
Cd-
Hg-contaminated
tropics.
Inoculation
modifies
mechanisms
composition
microorganisms
rhizosphere.
Mycorrhizal
inoculation
associated
increased
tolerance
Hg.
Microorganism-assisted
an
appropriate
alternative
.
Agricultural Water Management,
Journal Year:
2024,
Volume and Issue:
295, P. 108736 - 108736
Published: Feb. 28, 2024
The
application
of
plant
growth-promoting
rhizosphere
(PGPR)
and
Gamma-polyglutamic
acid
(γ-PGA)
has
a
potential
role
in
improving
tolerance
under
abiotic
stress,
while
their
combined
effects
remain
largely
unexplored.
This
study
aimed
to
evaluate
the
joint
PGPR
γ-PGA
on
maize
growth
microbial
communities
salt
stress.
A
pot
experiment
consisting
two
strain
treatments
(CK,
M10),
(γ0,
γ1)
(S1,
S2)
was
performed
for
this
purpose.
results
showed
that
S1
treatment,
M10
could
increase
height,
leaf
area
dry
weight
by
11.27%,
36.45%
8.39%
respectively
(P<0.05).
Under
S2
corn
34.46%,
142.80%
55.81%
In
addition,
reduced
Na+
content
leaves
59.43%
significantly
increased
proportion
bacterial
Firmicutes
(mainly
including
Bacillus_firmus_g_Bacillus
Bacillus_selenatarsenatis)
soil.
Leaf-Na+
(P<0.001),
root-K+
(P<0.01),
leaf-total
phosphorus
(P<0.05),
root-total
(P<0.01)
electron
transfer
rate
had
significant
effect
changes
structure
community.
interaction
network
improve
numbers
were
directly
related
factors.
not
only
demonstrated
benefits
but
also
provided
insights
into
mechanism
from
perspective
community
changes.
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
946, P. 174178 - 174178
Published: June 24, 2024
Agricultural
management
practices
can
induce
changes
in
soil
aggregation
structure
that
alter
the
microbial
nitrous
oxide
(N2O)
production
and
reduction
processes
occurring
at
microscale,
leading
to
large-scale
consequences
for
N2O
emissions.
However,
mechanistic
understanding
of
how
organic
fertilization
affects
these
context-dependent
small-scale
emissions
associated
key
nitrogen
(N)
cycling
communities
is
lacking.
Here,
denitrification
gas
(N2O,
N2)
potential
capacity
N2O/(N2O
+
were
assessed
by
automated
chromatography
different
aggregates
(>2
mm,
2–0.25
<0.25
mm),
while
sequencing
qPCR
N2O-producting
(nirK
nirS)
reducing
(nosZ
clade
I
II)
genes.
The
results
indicated
reduced
enhancing
conversion
N2
all
aggregate
sizes.
Moreover,
hotspots
occurred
smaller
aggregates,
with
degree
depending
on
fertilizer
type
application
rate.
Further,
significantly
higher
abundance
diversity
nosZ
clades
relative
nirK
nirS
revealed
complete
promoted
through
selection
denitrifying
microscales
favouring
reduction.
Communities
high
low
emission
treatments
form
modules
specific
sequence
types
which
may
be
diagnostic
levels.
Taken
together,
findings
suggest
fertilizers
influencing
factors
patterns
niche
partitioning
between
N2O-producing
within
overall
are
more
likely
consume
than
emit
N2O.
These
helpful
strengthening
ability
predict
from
agricultural
soils
under
as
well
contributing
development
net-zero
carbon
strategies
sustainable
agriculture.
Environment International,
Journal Year:
2023,
Volume and Issue:
172, P. 107793 - 107793
Published: Feb. 1, 2023
Tricresyl
phosphate
(TCP)
is
extensively
used
organophosphorus
flame
retardants
and
plasticizers
that
posed
risks
to
organisms
human
beings.
In
this
study,
the
translocation
biotransformation
behavior
of
isomers
tri-p-cresyl
(TpCP),
tri-m-cresyl
(TmCP),
tri-o-cresyl
(ToCP)
in
rice
rhizosphere
microbiome
was
explored
by
hydroponic
exposure.
TpCP
TmCP
were
found
more
liable
be
translocated
acropetally,
compared
with
ToCP,
although
they
have
same
molecular
weight
similar
Kow.
Rhizosphere
named
microbial
consortium
GY
could
reduce
uptake
TpCP,
TmCP,
ToCP
tissues,
promote
growth.
New
metabolites
successfully
identified
microbiome,
including
hydrolysis,
hydroxylated,
methylated,
demethylated,
methoxylated,
glucuronide-
products.
The
methylation,
demethylation,
methoxylation,
glycosylation
pathways
TCP
observed
for
first
time
organisms.
What
important
demethylation
TCPs
an
overlooked
source
triphenyl
(TPHP),
which
broke
traditional
understanding
only
manmade
toxic
TPHP
environment.
Active
members
during
degradation
revealed
metagenomic
analysis
indicated
most
active
populations
contained
TCP-degrading
genes.
It
noteworthy
strains
function
genes
responsible
isomers'
transformation
different.
These
results
can
improve
our
organic
pollutant
plants
microbiome.
