Frontiers in Microbiology,
Journal Year:
2022,
Volume and Issue:
13
Published: July 8, 2022
Brassica
napus
(Rapeseed)
is
an
econfomically
important
oil-producing
crop.
The
microbial
interactions
in
the
plant
holobiont
are
fundamental
to
understanding
of
growth
and
health.
To
investigate
dynamics
feral
B.
napus,
a
total
215
samples,
comprised
bulk
soil,
primary
root,
lateral
dead
leaf,
caulosphere,
basal
apical
carposphere,
anthosphere,
were
collected
from
five
different
grassland
sites
South
Korea.
soil
properties
differed
sampling
sites,
but
prokaryotic
communities
segregated
according
components.
structures
site-specific
SparCC
networks
similar
across
regions.
Recurrent
patterns
found
holobionts
recurrent
network.
Ralstonia
sp.,
Massilia
Rhizobium
clusters
observed
consistently
identified
as
core
taxa
phyllosphere,
leaf
microbiome,
rhizosphere,
respectively.
Arthropod-related
microbes,
such
Wolbachia
Gilliamella
Corynebacteriales
amplicon
sequence
variants,
anthosphere.
PICRUSt2
analysis
revealed
that
microbes
also
possessed
specific
functions
related
components,
degradation
pathways
microbiome.
Structural
equation
modeling
showed
organic
connections
among
components
essential
roles
formations
natural
ecosystem.
Microbes
coexisting
relatively
stable
community
structures,
even
though
regions
characteristics
different.
each
component
organically
connected
form
their
own
holobiont.
In
addition,
plant-related
especially
holobiont,
interaction
survival
coexistence
ecosystems.
Frontiers in Microbiology,
Journal Year:
2023,
Volume and Issue:
14
Published: May 12, 2023
The
McMurdo
Dry
Valleys
of
Antarctica
experience
a
range
selective
pressures,
including
extreme
seasonal
variation
in
temperature,
water
and
nutrient
availability,
UV
radiation.
Microbial
mats
this
ecosystem
harbor
dense
concentrations
biomass
an
otherwise
desolate
environment.
inhabitants
must
mitigate
these
pressures
via
specialized
enzymes,
changes
to
the
cellular
envelope,
production
secondary
metabolites,
such
as
pigments
osmoprotectants.
Here,
we
describe
isolation
characterization
Gram-negative,
rod-shaped,
motile,
red-pigmented
bacterium,
strain
DJPM01,
from
microbial
mat
within
Don
Juan
Pond
Basin
Wright
Valley.
Analysis
DJMP01’s
genome
indicates
it
can
be
classified
member
Massilia
frigida
species.
contains
several
genes
associated
with
cold
salt
tolerance,
multiple
RNA
helicases,
protein
chaperones,
cation/proton
antiporters.
In
addition,
identified
17
putative
metabolite
gene
clusters,
number
nonribosomal
peptides
ribosomally
synthesized
post-translationally
modified
(RiPPs),
among
others,
biosynthesis
pathway
for
antimicrobial
pigment
prodigiosin.
When
cultivated
on
complex
agar,
prodiginines,
antibiotic
prodigiosin,
2-methyl-3-propyl-prodiginine,
2-methyl-3-butyl-prodiginine,
2-methyl-3-heptyl-prodiginine,
cycloprodigiosin,
were
detected
by
LC–MS.
Genome
analyses
sequenced
members
genus
prodigiosin
is
unique
Antarctic
strains.
UV-A
radiation,
ecological
stressor
Antarctic,
was
found
significantly
decrease
abundance
prodiginines
produced
DJPM01.
Genomic
phenotypic
evidence
DJPM01
respond
conditions
DJP
mat,
under
conditions,
Scientific Reports,
Journal Year:
2022,
Volume and Issue:
12(1)
Published: July 1, 2022
Abstract
Leaf
microbiota
mediates
foliar
functional
traits,
influences
plant
fitness,
and
contributes
to
various
ecosystem
functions,
including
nutrient
water
cycling.
Plant
phenology
harsh
environmental
conditions
have
been
described
as
the
main
determinants
of
leaf
assembly.
How
climate
change
may
modulate
is
unresolved
thus,
we
a
limited
understanding
on
how
stresses
associated
with
driven
weather
events
affect
composition
functions
microbes
inhabiting
phyllosphere.
Thus,
conducted
pot
experiment
determine
effects
flooding
stress
wheat
microbiota.
Since
might
be
an
important
factor
in
response
hydrological
stress,
was
induced
at
different
growth
stages
(tillering,
booting
flowering).
Using
metabarcoding
approach,
monitored
bacteria
flooding,
while
key
soil
traits
were
measured
correlate
physiological
edaphic
changes
shifts
bacterial
In
our
study,
stage
represented
driver
composition,
early
late
plants
showed
distinct
communities.
Overall,
had
differential
effect
dynamics
depending
which
developmental
it
induced,
more
pronounced
disruption
community
assembly
observed
younger
plants.
Frontiers in Plant Science,
Journal Year:
2022,
Volume and Issue:
13
Published: Nov. 28, 2022
Rainfall
extremes
are
intensifying
as
a
result
of
climate
change,
leading
to
increased
flood
risk.
Flooding
affects
above-
and
belowground
ecosystem
processes,
representing
substantial
threat
crop
productivity
under
change.
Plant-associated
fungi
play
important
roles
in
plant
performance,
but
their
response
abnormal
rain
events
is
unresolved.
Here,
we
established
glasshouse
experiment
determine
the
effects
flooding
stress
on
spring
wheat-mycobiota
complex.
Since
phenology
could
be
an
factor
hydrological
stress,
was
induced
only
once
at
different
growth
stages,
such
tillering,
booting
flowering.
We
assessed
wheat
mycobiota
three
soil-plant
compartments
(phyllosphere,
roots
rhizosphere)
using
metabarcoding.
Key
soil
traits
were
measured
correlate
physiological
edaphic
changes
with
shifts
structure
functional
guilds.
reduced
fitness,
caused
dramatic
assembly
across
entire
plant.
Notably,
observed
transition
consisting
decline
mutualist
abundance
richness
concomitant
increase
pathogens.
Indeed,
fungal
pathogens
associated
cereal
diseases,
Gibberella
intricans,
Mycosphaerella
graminicola,
Typhula
incarnata
Olpidium
brassicae
significantly
flooding.
Overall,
our
study
demonstrate
detrimental
effect
complex,
highlighting
urgent
need
understand
how
change-associated
abiotic
stressors
alter
plant-microbe
interactions
crops.
Functional Plant Biology,
Journal Year:
2024,
Volume and Issue:
51(2)
Published: Jan. 24, 2024
Flooding
is
a
predominant
abiotic
stress
for
cultivated
plants,
including
barley.
This
cereal
crop
shows
large
adaptability
to
different
environmental
conditions,
suggesting
the
presence
of
key
traits
tolerate
adverse
conditions.
During
germination,
genetic
variations
account
dissimilarities
in
flooding
tolerance.
However,
differences
seed
microbiota
may
also
contribute
tolerance/sensitivity
during
seedling
establishment.
work
investigated
microbiome
among
grains
barley
accessions.
Two
phenotypes
were
compared,
each
either
tolerant
or
sensitive
short
submergence
period
followed
by
recovery.
The
study
used
metataxonomic
analysis
based
on
16S
ribosomal
RNA
gene
sequencing
and
subsequent
functional
prediction.
Our
results
support
hypothesis
that
bacterial
inhabiting
seeds
are
between
accessions,
which
harbour
specific
phyla
families.
Finally,
bacteria
detected
accessions
show
peculiar
enrichment
suggests
possible
connection
with
successful
germination
Plants,
Journal Year:
2023,
Volume and Issue:
12(3), P. 544 - 544
Published: Jan. 25, 2023
Phosphorus
(P)
is
an
essential
nutrient
for
plant
growth
and
development,
as
well
important
factor
limiting
sustainable
maize
production.
Targeted
nitrogen
(N)
fertilization
in
the
form
of
ammonium
has
been
shown
to
positively
affect
Pi
uptake
under
P-deficient
conditions
compared
nitrate.
Nevertheless,
its
profound
effects
on
root
traits,
P
uptake,
soil
microbial
composition
are
still
largely
unknown.
In
this
study,
two
genotypes
F160
F7
with
different
sensitivity
were
used
investigate
phosphorus-related
traits
such
hair
length,
diameter,
AMF
association,
multiple
efficiencies
limitation
when
fertilized
either
or
Ammonium
application
improved
phosphorous
acquisition
efficiency
genotype
but
not
F160,
suggesting
that
plays
role
how
a
particular
N
affects
maize.
Additionally,
metabarcoding
data
showed
young
roots
able
promote
distinct
taxa,
arbuscular
mycorrhizal
fungi,
ammonium.
Overall,
results
suggest
chemical
fertilizer
can
be
instrumental
selecting
beneficial
communities
associated
phosphorus
fitness.
Applied Soil Ecology,
Journal Year:
2023,
Volume and Issue:
195, P. 105226 - 105226
Published: Dec. 5, 2023
The
application
of
organic
amendments
is
a
common
practice
in
the
restoration
contaminated
and
degraded
soils.
We
designed
an
experiment
pot
mesocosms
to
study
effect
amendment
(comparing
short-term
addition
biosolid
compost
with
soils
amended
17
years
ago)
soil
legacy
exposed
or
not
extensive
grazing
over
remediation
process)
on
resistance
Mediterranean
against
simulated
drought
event.
Pots
were
sown
forage
mixture
(Lolium
rigidum
Medicago
polymorpha),
was
evaluated
by
measuring
chemical
properties,
biological
activity
(soil
enzyme
activities
respiration
rate),
microbial
community
composition
plant
production.
Our
results
showed
positive
exposure
increasing
water
retention
stability
production
under
conditions.
long-term
avoided
negative
consequences
L.
(the
species
lowest
tolerance
stress),
while
M.
polymorpha
biomass
12
times
non-amended
non-exposed
soil.
However,
(enzyme
rate)
as
well
diversity
limited
conditions
any
type
management
legacy,
demonstrating
great
adaptation
communities
stress
semiarid
Soils
matter
inputs
long-term,
through
grazing,
high
similarities
terms
bacterial
fungal
composition.
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(12), P. 9898 - 9898
Published: June 8, 2023
Regenerative
3agriculture
prioritizes
soil
health
to
build
up
organic
carbon
and
nitrogen
stocks
while
supporting
the
active
diverse
biota
that
is
a
prerequisite
for
maintaining
crop
productivity
quality
in
sustainable
food
production.
This
study
aimed
at
unravelling
impact
of
inorganic
maintenance
systems
'Red
Jonaprince'
apple
(Malus
×
domestica
Borkh.)
orchard
on
microbiota
biodiversity
physico-chemical
properties.
During
our
study,
we
compared
seven
floor
management
terms
microbial
community
diversity.
Fungal
bacterial
communities
all
taxonomic
levels
differed
largely
between
augmented
matter
(organic)
other
tested
regimes.
The
dominant
phylum
was
Ascomycota.
operational
units
(OTUs)
within
Ascomycota
were
identified
as
members
Sordariomycetes,
followed
by
Agaricomycetes,
both
dominated
versus
inorganic.
most
prominent
phyla,
Proteobacteria,
accounted
43%
assigned
bacteria
OTUs.
Gammaproteobacteria,
Bacteroidia,
Alphaproteobacteria
predominant
samples,
Acidobacteriae,
Verrucomicrobiae,
Gemmatimonadetes
more
abundant
mulches.