Soil Systems,
Год журнала:
2024,
Номер
8(2), С. 39 - 39
Опубликована: Март 26, 2024
The
use
of
plant
growth-promoting
rhizobacteria
(PGPR)
inoculated
on
plants
has
shown
that
it
can
increase
the
success
reforestation
and
accelerate
soil
recovery
by
improving
microbial
diversity.
Three
PGPR
isolated
from
natural
pine
populations
were
selected
for
their
metabolic
capabilities
taxonomic
affiliation
(Z4.3;
Bacillus
sp.,
Z5.4;
Arthobacter
Z7.15;
Pseudomonas
sp.)
when
alone
or
in
combination
(consortium)
stone
seedlings
before
transplanting
to
field.
Before
after
nine
months,
rhizospheric
samples
collected
structural
functional
metagenomic
studies.
First,
data
analyzed
using
EasyMAP.
Neither
alpha
nor
beta
diversity
showed
significant
differences
between
samples,
although
unique
taxa
representative
each
sample
detected.
predominant
phylum
all
cases
was
Proteobacteria,
followed
Bacteroidetes
Acidobacteria.
linear
discriminant
analysis
(LDA)
effect
size
(LEfSe)
found
significantly
over-represented
some
highlighting
different
representatives
order
Sphingomonadales
several
them.
Functional
inference
performed
with
PICRUSt
also
functions
samples.
study
demonstrates
have
a
positive
cause
detectable
changes
communities
terms
both
structure
function.
Agronomy,
Год журнала:
2023,
Номер
13(2), С. 542 - 542
Опубликована: Фев. 14, 2023
Conventional
agriculture
has
important
challenges
to
guarantee
soil
fertility
and
sustainable
food
production.
Many
agricultural
soils
in
the
world
are
degraded
multiple
strategies
currently
being
developed
restore
them.
The
study
of
beneficial
microorganisms
attracted
increasing
interest
due
their
relevant
role
development.
balance
maintenance
ecosystem
services,
such
as
biomass
transformation,
nutrient
cycling,
plant
growth,
health,
directly
dependent
on
microbial
activity.
Therefore,
it
is
promote
its
establishment
propagation.
An
ancient
technique
that
favors
biodiversity
production
application
compost.
While
numerous
studies
have
focused
benefits
cultivation,
fewer
for
microbiota.
objective
this
review
was
elucidate
microbiota
composting
process
impact
agriculture.
presents
advances
knowledge
importance
involved
how
compost
promotes
multiplication
consortia
functions
soils,
shifting
towards
a
more
resilient
Plant Stress,
Год журнала:
2023,
Номер
10, С. 100242 - 100242
Опубликована: Сен. 29, 2023
As
climate
change
exacerbates
drought
conditions,
global
crop
production
faces
an
escalating
threat.
Fortunately,
eco-friendly
solution
lies
in
harnessing
the
potential
of
plant-associated
plant
growth-promoting
bacteria.
However,
it's
crucial
to
recognize
that
drought's
impact
extends
beyond
plants;
it
also
influences
composition,
abundance,
and
activity
bacterial
communities.
Amongst
these
root-associated
communities,
Actinobacteria
are
key
players
preserving
well-being
hosts
during
stress,
with
research
demonstrating
minimal
disruption
communities
under
conditions.
Actinobacteria,
found
ubiquitously,
exceptional
candidates
for
promoting
growth
due
their
prevalence
soil
rhizosphere,
adeptness
at
colonizing
roots
surfaces,
capability
produce
diverse
secondary
metabolites
stress.
With
attributes,
members
phylum
present
themselves
as
most
promising
microbial
inoculation
plants.
They
enriched
rhizosphere
endosphere
microbiomes
crops
enduring
water
deficit
stress
Notably,
particularly
Streptomyces
genus,
employ
various
mechanisms,
such
modulation
phytohormone
levels,
reinforcement
antioxidant
enzymes,
enhanced
nutrient
uptake,
more,
alleviate
crops.
This
comprehensive
review
explores
actinobacterial
diversity
associated
plants
delves
into
on
Actinobacteria.
It
examines
mechanisms
through
which
mitigate
Emphasizing
role
multi-omics
techniques
broadening
our
understanding
plant-Actinobacteria
interactions,
this
aims
inspire
further
exploration
relatively
uncharted
territory.
Furthermore,
discusses
future
directions
application
traits,
underlining
sustainable
agricultural
practices.
Ecological Indicators,
Год журнала:
2024,
Номер
158, С. 111545 - 111545
Опубликована: Янв. 1, 2024
The
study
aimed
to
comprehensively
investigate
the
structural
dynamics
of
a
soil
microbial
community
within
100-year
agricultural
field
experiment.
experimental
design
encompasses
three
distinct
management
practices,
namely
monoculture,
five–year
rotation,
and
random
each
with
or
without
incorporation
legumes
manure.
Soil
communities
were
determined
by
Next-Generation
Sequencing
(Illumina
MiSeq
analysis)
both
V3
V4
hypervariable
regions
16S
rRNA
gene
for
bacteria
Archaea,
as
well
ITS1
fungi.
In
all
soils,
dominant
bacterial
phyla
Proteobacteria,
Actinobacteria,
Acidobacteria,
Chloroflexi,
orders
Actinomycetales,
Rhizobiales,
Acidimicrobiales,
Sphingomonadales.
However,
fungal
Ascomycota,
Basidiomycota,
Zygomycota,
Pleosporales,
Eurotiales,
Hypocreales,
Mortierellales.
Compared
fallow
land,
affected
soil,
reducing
ratio
oligotrophs
(e.g.
Acidobacteria
Armatimonadetes)
copiotrophs
(Actinobacteria
Gemmatimonadetes).
Moreover,
contributed
an
increased
number
plant
growth-promoting
groups
(PGPB),
antagonistic
many
(e.g.,
Fusarium
spp.)
pathogens
Bukholderiales,
Xanthomonadales).
generally
in
study,
there
no
significant
differences
between
monoculture
crop
rotations.
two
taxa
can
be
considered
potential
indicators
"healthy
soil":
nitrifying
Nitrospira
spp.
whose
abundance
was
strongly
dependent
on
nitrogen,
potassium,
phosphorus,
organic
carbon,
pH,
PGP
fungi
genus
Mortierellla
which
depended
mainly
nitrogen
pH.
Finally,
most
abundant
especially
rotation
legumes,
while
soils
did
not
favour
these
microorganisms.
conclusion,
various
practices
affect
microbiota
thus
their
ability
support
land
productivity.
Chemical Engineering Journal,
Год журнала:
2024,
Номер
493, С. 152772 - 152772
Опубликована: Июнь 2, 2024
To
improve
the
performance
of
an
anaerobic
membrane
bioreactor
(AnMBR)
treating
swine
wastewater,
integrated
microbial
fuel
cell
(MFC)-AnMBR
was
constructed
and
operated
for
185
days
at
organic
concentrations
3000–––12000
mg/L
to
investigate
effect
in-situ
bioelectric
field
on
removal,
methane
production,
system
stability
fouling.
Results
showed
that
MFC-AnMBR
achieved
up
99.0
%
chemical
oxygen
demand
(COD)
removal
all
loads
with
maximum
methanogenic
capacity
0.21
L/gCODremoved.
Compared
conventional
AnMBR,
shortened
start-up
period
by
15
days,
improved
COD
8.7
±
1.5
production
54.2
37.8
%.
In
presence
field,
soluble
products
(SMP)
extracellular
polymeric
substances
(EPS)
were
reduced
52.7
10.9
15.7
%,
respectively.
Notably,
extended
life
cycle
more
than
40
days.
Facilitated
abundance
g_Methanothrix
g_Brooklawnia
(capable
electron
transfer
g_Methanothrix)
in
increased
29.5
−
48.7
8.2
10.8
respectively,
greatly
enhancing
performance.
Furthermore,
inhibited
growth
membrane-fouling
bacteria
(p_Bacteroidota
p_Firmicutes)
promoted
proliferation
membrane-fouling-mitigating
p_Actinobacteria
membranes.
Overall,
exhibited
excellent
long-term
operation
when
wastewater
different
loads.
This
provided
a
promising
strategy
stabilising
efficiently
wastewater.
Metabolites,
Год журнала:
2023,
Номер
13(3), С. 374 - 374
Опубликована: Март 2, 2023
The
use
of
chemical
fertilizers
and
pesticides
has
caused
harmful
impacts
on
the
environment
with
increase
in
economic
burden.
Biofertilizers
are
biological
products
containing
living
microorganisms
capable
improving
plant
growth
through
eco-friendly
mechanisms.
In
this
work,
three
actinobacterial
strains
Streptomyces
violaceoruber,
coelicolor,
Kocuria
rhizophila
were
characterized
for
multiple
promoting
(PGP)
traits
such
as
indole
acetic
acid
production,
phosphate
solubilization,
N2-fixation,
drought
salt
tolerance.
Then,
these
investigated
their
secreted
cellular
metabolome,
revealing
a
rich
arsenal
bioactive
molecules,
including
antibiotics
siderophores,
S.
violaceoruber
being
most
prolific
strain.
Furthermore,
vivo
assays,
performed
tomato
(Solanum
lycopersicum
L.),
resulted
an
improved
germination
index
seedlings
from
seeds
treated
PGP
actinobacteria,
particular
focus
cultures.
particular,
last
strain,
producing
volatile
organic
compounds
having
antimicrobial
activity,
was
able
to
modulate
volatilome
exert
control
global
DNA
methylation
seedlings.
Thus,
results,
confirming
efficacy
selected
actinobacteria
development
by
non-volatile
can
promote
alternatives
sustainable
agriculture.
Modern
agricultural
practices
have
long
relied
on
chemical
inputs,
including
fertilizers,
pesticides,
and
herbicides.
However,
these
inputs
come
at
a
cost
to
crop
nutritional
value
soil
health.
Overuse
of
such
chemicals
has
led
environmental
degradation,
the
emergence
weed
disease
resistance,
contamination
food
supplies.
Furthermore,
it
contributed
accumulation
hazardous
substances
in
soil,
exacerbating
health
degradation.
In
response
challenges,
there
is
pressing
need
for
eco-friendly
approaches
address
growing
concern.
Microbial
inoculants,
functioning
as
biofertilizers,
bioherbicides,
biopesticides,
biocontrol
agents,
offer
promising
alternative
inputs.
By
introducing
beneficial
microorganisms
into
or
plants,
overall
both
crops
can
be
significantly
improved.
inoculants
play
pivotal
role
pest
management,
consequently
contributing
improved
human
Comprising
diverse
microorganisms,
bacteria,
fungi,
algae,
microbial
interact
with
through
various
mechanisms,
effectively
reducing
dependency
fertilizers
mitigating
their
adverse
effects.
This
chapter
comprehensively
explores
vital
sustaining
long-term
populations
elucidates
distinctive
modes
action.
Frontiers in Plant Science,
Год журнала:
2024,
Номер
15
Опубликована: Фев. 9, 2024
Rhizobacteria
are
capable
of
inducing
defense
responses
via
the
expression
pathogenesis-related
proteins
(PR-proteins)
such
as
chitinases,
and
many
studies
have
validated
functions
plant
chitinases
in
responses.
Soybean
(
Glycine
max
)
is
an
economically
important
crop
worldwide,
but
functional
validation
soybean
chitinase
remains
limited.
In
this
study,
genome-wide
characterization
was
conducted,
contribution
three
(GmChi01,
GmChi02,
or
GmChi16)
Arabidopsis
transgenic
lines
against
soil-borne
pathogen
Fusarium
oxysporum
.
Compared
to
Col-0
empty
vector
controls,
with
GmChi02
GmChi16
exhibited
fewer
chlorosis
symptoms
wilting.
While
enhanced
F.
,
only
one
significantly
induced
by
Burkholderia
ambifaria
The
observation
indicated
that
may
be
different
rhizobacteria
for
survey
37
gene
expressions
response
six
observed
diverse
inducibility,
where
10
genes
were
upregulated
at
least
rhizobacterium
9
did
not
respond
any
rhizobacteria.
Motif
analysis
on
promoters
further
identified
consensus
also
rhizobacterium-specific
transcription
factor-binding
sites
inducible
genes.
Collectively,
these
results
confirmed
involvement
enhancement
highlighted
inducibility
encountering
