Abstract
Plant
microbiome
and
its
manipulation
herald
a
new
era
for
plant
biotechnology
with
the
potential
to
benefit
sustainable
crop
production.
However,
studies
evaluating
diversity,
structure
impact
of
microbiota
in
economic
important
crops
are
still
rare.
Here
we
describe
comprehensive
inventory
assemblage
bacterial
fungal
communities
associated
sugarcane.
Our
analysis
identified
23,811
OTUs
an
unexpected
11,727
inhabiting
endophytic
exophytic
compartments
roots,
shoots
leaves.
These
originate
primarily
from
native
soil
around
plants
colonize
organs
distinct
patterns.
The
sample
type
is
primary
driver
community
organ
compartment
plays
major
role
assemblage.
We
core
composed
less
than
20%
total
microbial
richness
but
accounting
over
90%
relative
abundance.
roots
showed
89
families,
19
which
accounted
44%
Stalks
dominated
by
groups
yeasts
that
represent
12%
described
here
comprise
whose
biological
underlies
traits
growth
fermentative
processes.
PLoS Biology,
Год журнала:
2016,
Номер
14(1), С. e1002352 - e1002352
Опубликована: Янв. 20, 2016
Plant-associated
microorganisms
have
been
shown
to
critically
affect
host
physiology
and
performance,
suggesting
that
evolution
ecology
of
plants
animals
can
only
be
understood
in
a
holobiont
(host
its
associated
organisms)
context.
Host-associated
microbial
community
structures
are
affected
by
abiotic
factors,
increased
attention
is
given
the
role
microbiome
interactions
such
as
pathogen
inhibition.
However,
little
known
about
how
these
factors
act
on
community,
especially
what
microbe–microbe
interaction
dynamics
play.
We
begun
address
this
knowledge
gap
for
phyllosphere
microbiomes
simultaneously
studying
three
major
groups
Arabidopsis
thaliana
symbionts
(bacteria,
fungi
oomycetes)
using
systems
biology
approach.
evaluated
multiple
potential
control:
we
sampled
various
wild
A.
populations
at
different
times,
performed
field
plantings
with
genotypes,
implemented
successive
colonization
experiments
under
lab
conditions
where
genotype,
was
manipulated.
Our
results
indicate
both
genotype
interact
plant
all
microbes.
Considering
interactions,
however,
uncovered
network
interkingdom
significant
contributions
structure.
As
other
scale-free
networks,
small
number
taxa,
which
call
"hubs,"
strongly
interconnected
severe
effect
communities.
By
documenting
uncover
an
important
mechanism
explaining
genotypic
signatures
control
In
short,
they
directly
"hub"
microbes,
which,
via
transmit
effects
community.
analyzed
two
microbes
(the
obligate
biotrophic
oomycete
Albugo
basidiomycete
yeast
fungus
Dioszegia)
more
closely.
had
strong
epiphytic
endophytic
bacterial
colonization.
Specifically,
alpha
diversity
decreased
beta
stabilized
presence
infection,
whereas
otherwise
varied
between
plants.
Dioszegia,
hand,
provided
evidence
direct
hub
bacteria.
The
identification
"hubs"
their
importance
structuring
has
crucial
implications
plant–pathogen
research
opens
new
entry
points
ecosystem
management
future
targeted
biocontrol.
revelation
cascade
through
communities
understand
structure
perturbations
parallel
fields
including
human
bioprocesses.
particular,
parallels
"keystone"
pathogens
open
avenues
interdisciplinary
promise
better
our
understanding
functions
host-associated
microbiomes.
Journal of Advanced Research,
Год журнала:
2019,
Номер
19, С. 29 - 37
Опубликована: Март 20, 2019
Plants
have
evolved
with
a
plethora
of
microorganisms
having
important
roles
for
plant
growth
and
health.
A
considerable
amount
information
is
now
available
on
the
structure
dynamics
microbiota
as
well
functional
capacities
isolated
community
members.
Due
to
interesting
potential
due
current
challenges
in
crop
production
there
an
urgent
need
bring
microbial
innovations
into
practice.
Different
approaches
microbiome
improvement
exist.
On
one
hand
strains
or
strain
combinations
can
be
applied,
however,
field
success
often
variable
urgently
required.
Smart,
knowledge-driven
selection
needed
use
suitable
delivery
formulations.
other
hand,
farming
practices
genotype
influence
thus
functioning.
Therefore,
appropriate
breeding
leading
improved
plant-microbiome
interactions
are
avenues
increase
benefit
microbiota.
In
conclusion,
different
making
new
generation
inoculants
application
microbiome-based
agro-management
lines
could
lead
better
microbiome.
This
paper
reviews
importance
functionalities
bacterial
discusses
concepts
regard
plant-associated
bacteria.
Since
the
colonization
of
land
by
ancestral
plant
lineages
450
million
years
ago,
plants
and
their
associated
microbes
have
been
interacting
with
each
other,
forming
an
assemblage
species
that
is
often
referred
to
as
a
"holobiont."
Selective
pressure
acting
on
holobiont
components
has
likely
shaped
plant-associated
microbial
communities
selected
for
host-adapted
microorganisms
impact
fitness.
However,
high
densities
detected
tissues,
together
fast
generation
time
more
ancient
origin
compared
host,
suggest
microbe-microbe
interactions
are
also
important
selective
forces
sculpting
complex
assemblages
in
phyllosphere,
rhizosphere,
endosphere
compartments.
Reductionist
approaches
conducted
under
laboratory
conditions
critical
decipher
strategies
used
specific
cooperate
compete
within
or
outside
tissues.
Nonetheless,
our
understanding
these
shaping
communities,
along
relevance
host
health
natural
context,
remains
sparse.
Using
examples
obtained
from
reductionist
community-level
approaches,
we
discuss
fundamental
role
(prokaryotes
micro-eukaryotes)
community
structure
health.
We
provide
conceptual
framework
illustrating
among
microbiota
members
establishment
maintenance
host-microbial
homeostasis.
Nature Communications,
Год журнала:
2016,
Номер
7(1)
Опубликована: Июль 12, 2016
Bacteria
living
on
and
in
leaves
roots
influence
many
aspects
of
plant
health,
so
the
extent
a
plant's
genetic
control
over
its
microbiota
is
great
interest
to
crop
breeders
evolutionary
biologists.
Laboratory-based
studies,
because
they
poorly
simulate
true
environmental
heterogeneity,
may
misestimate
or
totally
miss
certain
host
genes
microbiome.
Here
we
report
large-scale
field
experiment
disentangle
effects
genotype,
environment,
age
year
harvest
bacterial
communities
associated
with
Boechera
stricta
(Brassicaceae),
perennial
wild
mustard.
Host
microbiome
evident
but
not
roots,
varies
substantially
among
sites.
Microbiome
composition
also
shifts
as
plants
age.
Furthermore,
large
proportion
leaf
groups
are
shared
suggesting
inoculation
from
soil.
Our
results
demonstrate
how
genotype-by-environment
interactions
contribute
complexity
assembly
natural
environments.
Annual Review of Genetics,
Год журнала:
2016,
Номер
50(1), С. 211 - 234
Опубликована: Сен. 20, 2016
Plants
do
not
grow
as
axenic
organisms
in
nature,
but
host
a
diverse
community
of
microorganisms,
termed
the
plant
microbiota.
There
is
an
increasing
awareness
that
microbiota
plays
role
growth
and
can
provide
protection
from
invading
pathogens.
Apart
intense
research
on
crop
plants,
Arabidopsis
emerging
valuable
model
system
to
investigate
drivers
shaping
stable
bacterial
communities
leaves
roots
tool
decipher
intricate
relationship
among
its
colonizing
microorganisms.
Gnotobiotic
experimental
systems
help
establish
causal
relationships
between
genotypes
phenotypes
test
hypotheses
biotic
abiotic
perturbations
systematic
way.
We
highlight
major
recent
findings
using
comparative
profiling
omics
analyses,
discuss
these
approaches
light
establishment
beneficial
traits
like
nutrient
acquisition
health.
New Phytologist,
Год журнала:
2015,
Номер
209(2), С. 798 - 811
Опубликована: Окт. 15, 2015
Desert
plants
are
hypothesized
to
survive
the
environmental
stress
inherent
these
regions
in
part
thanks
symbioses
with
microorganisms,
and
yet
microbial
species,
communities
they
form,
forces
that
influence
them
poorly
understood.
Here
we
report
first
comprehensive
investigation
of
associated
species
Agave,
which
native
semiarid
arid
Central
North
America
emerging
as
biofuel
feedstocks.
We
examined
prokaryotic
fungal
rhizosphere,
phyllosphere,
leaf
root
endosphere,
well
proximal
distal
soil
samples
from
cultivated
agaves,
through
Illumina
amplicon
sequencing.
Phylogenetic
profiling
revealed
composition
was
primarily
determined
by
plant
compartment,
whereas
mainly
influenced
biogeography
host
species.
Cultivated
A.
tequilana
exhibited
lower
levels
diversity
compared
although
no
differences
were
found
endosphere.
Agaves
shared
core
taxa
known
promote
growth
confer
tolerance
abiotic
stress,
suggests
common
principles
underpinning
Agave-microbe
interactions.