The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
946, P. 174277 - 174277
Published: June 27, 2024
Microorganisms
form
dynamic
communities
with
plants,
providing
benefits
such
as
nutrient
acquisition
and
stress
resilience.
Understanding
how
these
microorganisms
are
affected
by
environmental
factors
growth
conditions
soil
characteristics
essential
for
harnessing
sustainable
agriculture
practices
their
response
to
climate
change.
The
microbiome
associated
Lupinus
angustifolius,
a
legume
native
in
Europe,
high
protein
value
resilience
was
characterized
the
first
time.
Using
16S
rRNA
gene
ITS
amplicon
sequencing,
we
compositional
temporal
changes
of
bacterial
fungal
soil,
rhizosphere,
plant
compartments
where
angustifolius
grows
naturally.
Our
results
suggest
that
main
difference
microbial
is
related
edaphic
properties,
although
temperature,
humidity
or
rainfall
also
influenced
composition
communities.
We
roots,
nodules,
leaves
wild
plants
collected
field
compared
them
against
obtained
under
greenhouse
conditions.
In
compartments,
appeared
be
more
growing
(field
vs
greenhouse),
than
location.
These
can
used
identify
key
taxa
may
play
crucial
roles
development
adaptation
host
its
microbiota
highlight
importance
characterizing
microbiomes
natural
habitats.
Soil,
climatic
seasons,
shapes
assembly.
recruits
core
across
leaves,
stable
locations.
However,
cultivation
alter
dynamics,
impacting
adaptability
components.
Wild
show
resilient
adaptable
while
germination
vulnerability.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: March 24, 2023
Abstract
Root
exudates
are
plant-derived,
exported
metabolites
likely
shaping
root-associated
microbiomes
by
acting
as
nutrients
and
signals.
However,
root
exudation
dynamics
unclear
thus
also,
if
changes
in
reflected
microbiome
structure.
Here,
we
assess
commonalities
differences
between
of
different
plant
species,
diurnal
dynamics,
well
the
accompanying
methodological
aspects
exudate
sampling.
We
find
that
should
be
collected
for
hours
rather
than
days
many
metabolite
abundances
saturate
over
time.
Plant
growth
sterile,
nonsterile,
or
sugar-supplemented
environments
significantly
alters
profiles.
A
comparison
Arabidopsis
thaliana
,
Brachypodium
distachyon
Medicago
truncatula
shoot,
root,
profiles
reveals
clear
these
but
also
a
core
metabolome
tissues
exudates.
Exudate
exhibit
signature.
These
findings
add
to
conceptual
groundwork
future
studies
improve
understanding
plant-microbe
interactions.
Environmental Science & Technology,
Journal Year:
2022,
Volume and Issue:
56(12), P. 9075 - 9082
Published: May 20, 2022
Reactive
oxygen
species
(ROS)
are
ubiquitous
on
earth
and
drive
numerous
redox-centered
biogeochemical
processes.
The
rhizosphere
of
wetland
plants
is
a
highly
dynamic
interface
for
the
exchange
electrons,
presenting
basis
precedent
ROS
production,
yet
whether
extracellular
produced
in
remains
unknown.
Here,
we
designed
microfluidic
chip
setup
to
detect
in-situ
productions
rice
with
spatial
temporal
resolutions.
Fluorescence
imaging
clearly
displayed
hot
spots
generation
rhizosphere.
formation
concentration
hydroxyl
radical
(•OH,
representative
ROS,
10–6
M)
was
comparable
those
by
classical
photochemical
route
(10–6–10–7
aquatic
systems,
therefore
highlighting
as
an
unrecognized
hotspot
production.
Moreover,
production
exhibits
diel
fluctuation,
which
simultaneously
fluctuated
dissolved
oxygen,
redox
potential,
pH,
all
driven
radial
loss
near
root
daytime.
fluctuation
were
confirmed
incubated
natural
soils.
We
demonstrated
that
triggered
interplay
between
root-released
microbial
respiration
released
while
iron
mineral
organic
matter
might
play
key
roles
storing
shuttling
electrons.
Our
results
highlight
widespread
but
previously
unappreciated
may
affect
pollutant
dynamics
processes
Environmental Microbiology Reports,
Journal Year:
2022,
Volume and Issue:
14(6), P. 833 - 849
Published: Oct. 2, 2022
Abstract
Soils
are
a
main
repository
of
biodiversity
harbouring
immense
diversity
microbial
species
that
plays
central
role
in
fundamental
ecological
processes
and
acts
as
the
seed
bank
for
emergence
plant
microbiome
cropland
ecosystems.
Crop‐associated
microbiomes
play
an
important
shaping
performance,
which
includes
but
not
limited
to
nutrient
uptake,
disease
resistance,
abiotic
stress
tolerance.
Although
our
understanding
structure
function
soil
has
been
rapidly
advancing,
most
knowledge
comes
from
ecosystems
natural
environment.
In
this
review,
we
present
overview
current
communities
along
soil–plant
continuum
agroecosystems.
To
characterize
mechanisms
community
assembly
crop
microbiomes,
explore
how
host
environmental
factors
such
developmental
stage,
pathogen
invasion,
land
management
shape
structure,
co‐occurrence
patterns,
crop‐microbiome
interactions.
Particularly,
relative
importance
deterministic
stochastic
is
illustrated
under
different
conditions,
potential
sources
keystone
taxa
described.
Finally,
highlight
few
questions
perspectives
future
research.
Environment International,
Journal Year:
2022,
Volume and Issue:
171, P. 107690 - 107690
Published: Dec. 9, 2022
Complex
interactions
between
plants
and
microorganisms
form
the
basis
of
constructed
wetlands
(CWs)
for
pollutant
removal.
In
rhizosphere,
radial
oxygen
loss
(ROL)
plays
a
key
role
in
activity
abundance
functional
microorganisms.
However,
little
has
been
done
to
explore
how
ROL
would
influence
niche
differentiation
microbial
communities
at
different
vertical
spatial
scales.
We
demonstrate
that
decreases
with
depth,
promoting
an
oxidation-reduction
rhizosphere
microecosystem
CWs.
The
high
level
upper
layer
could
support
supply
aerobic
bacteria
(Haliangium),
facilitating
COD
(60%)
NH4+-N
(50%)
removal,
whereas
enrichment
denitrifiers
(e.g.,
Hydrogenophaga
Ralstonia)
methanotrophs
(Methanobaterium)
lower
stimulate
denitrification.
function
prediction
results
further
certified
genes
catalyzing
nitrifying
denitrification
processes
were
significantly
enhanced
bottom
layers,
respectively,
which
was
attributed
concentration
gradient
rhizosphere.
This
study
contributes
unraveling
effect
enables
improved
understanding
decontamination
mechanisms
Environment International,
Journal Year:
2023,
Volume and Issue:
179, P. 108144 - 108144
Published: Aug. 12, 2023
Rhizosphere
is
a
crucial
area
in
comprehending
the
interaction
between
plants
and
microorganisms
constructed
wetlands
(CWs).
However,
influence
of
photoperiod,
key
factor
that
regulates
photosynthesis
rhizosphere
microbial
activity,
remains
largely
unknown.
This
study
investigated
effect
photoperiod
(9,
12,
15
hours/day)
on
pollutant
removal
underlying
mechanisms.
Results
showed
15-hour
treatment
exhibited
highest
efficiencies
for
COD
(87.26%),
TN
(63.32%),
NO3--N
(97.79%).
enhanced
photosynthetic
pigmentation
root
which
increased
transport
oxygen
soluble
organic
carbon
to
rhizosphere,
thus
promoting
nitrification
denitrification.
Microbial
community
analysis
revealed
more
stable
co-occurrence
network
due
complexity
aggregation
treatment.
Phaselicystis
was
identified
as
connector,
responsible
transferring
necessary
sources,
ATP,
electron
donors
supported
optimized
nitrogen
metabolism
CWs.
Structural
equation
model
emphasized
importance
plant-microbe
interactions
through
substance,
information,
energy
exchange.
These
findings
offer
valuable
insights
CWs
design
operation
various
latitudes
rural
areas
small-scale
decentralized
systems.