Food Quality and Safety,
Journal Year:
2023,
Volume and Issue:
7
Published: Jan. 1, 2023
Abstract
Seed-borne
bacterial
pathogens
cause
severe
yield
loss
and
biotoxin
contamination
in
rice,
leading
to
increasing
concern
on
the
global
food
supply
environmental
safety.
Plant
native
microbes
play
an
important
role
defending
against
diseases,
but
their
actions
are
often
influenced
by
chemical
fungicides
applied
field.
Here,
Bacillus
licheniformis
mmj
was
isolated
from
rice
spikelet,
which
uniquely
showed
not
only
fungicide-responsiveness
also
broad-spectrum
antimicrobial
activity
major
including
Xanthomonas
oryzae
pv.
oryzae,
Burkholderia
plantarii
glumae.
To
understand
hallmark
underlying
adaptation
of
B.
mmj,
genome
sequence
determined
SMRT
subjected
bioinformatics
analysis.
Genome
analysis
enabled
identification
a
set
antimicrobial-resistance
antibacterial
genes
together
with
array
harsh
environment-adaptive
genes.
Moreover,
metabolites
were
analyzed
gas
chromatography
coupled
triple
quadrupole
mass
spectrometry,
volatile
components
that
linked
preliminarily
profiled.
Collectively,
present
findings
reveal
genomic
metabolic
landscapes
fungicide-responsive
licheniformis,
offers
new
opportunity
design
biopesticides
cope
prevalent
phytopathogens.
Environmental Science and Ecotechnology,
Journal Year:
2021,
Volume and Issue:
9, P. 100144 - 100144
Published: Dec. 29, 2021
The
contaminant
of
herbicide
clopyralid
(3,6-dichloro-2-
pyridine-carboxylic
acid,
CLP)
poses
a
potential
threat
to
the
ecological
system.
However,
there
is
general
lack
research
devoted
perturbation
CLP
bio-denitrification
process,
and
its
biological
response
mechanism
remains
unclear.
Herein,
long-term
exposure
was
systematically
investigated
explore
influences
on
denitrification
performance
dynamic
microbial
responses.
Results
showed
that
low-concentration
(<15
mg/L)
caused
severe
nitrite
accumulation
initially,
while
higher
concentrations
(35-60
had
no
further
effect
after
acclimation.
mechanistic
study
demonstrated
reduced
reductase
(NIR)
activity
inhibited
metabolic
(carbon
metabolism
nitrogen
metabolism)
by
causing
oxidative
stress
membrane
damage,
resulting
in
accumulation.
more
than
80
days
acclimation,
almost
found
at
60
mg/L
CLP.
It
proposed
secretion
extracellular
polymeric
substances
(EPS)
increased
from
75.03
mg/g
VSS
15
109.97
CLP,
which
strengthened
protection
cells
improved
NIR
activities.
Additionally,
biodiversity
richness
community
experienced
U-shaped
process.
relative
abundance
denitrification-
carbon
metabolism-associated
microorganisms
decreased
initially
then
recovered
with
enrichment
related
EPS
N-acyl-homoserine
lactones
(AHLs).
These
protected
microbe
toxic
regulated
their
interactions
among
inter-
intra-species.
This
revealed
successive
provided
proper
guidance
for
analyzing
treating
herbicide-containing
wastewater.
Abstract
Single
pathogen‐targeted
disease
management
measure
has
shown
drawbacks
in
field
efficacy
under
the
scenario
of
global
change.
An
in‐depth
understanding
plant
pathogenesis
will
provide
a
promising
solution
but
faces
challenges
emerging
paradigm
involving
microbiome.
While
beneficial
impact
microbiome
is
well
characterized,
their
potential
role
facilitating
pathological
processes
so
far
remained
largely
overlooked.
To
address
these
unsolved
controversies
and
challenges,
we
hereby
highlight
pathobiome,
disease‐assisting
portion
hidden
microbiome,
paradigm.
We
review
detrimental
actions
mediated
by
pathobiome
at
multiple
scales
further
discuss
how
natural
human
triggers
result
prevalence
which
would
probably
clue
to
mitigation
epidemics.
Collectively,
article
advance
current
insight
into
also
pave
new
way
cope
with
upward
trends
designing
pathobiome‐targeted
measure.
Frontiers in Plant Science,
Journal Year:
2025,
Volume and Issue:
15
Published: Jan. 20, 2025
The
quality
of
fresh
tea
leaves
is
crucial
to
the
final
product,
and
maintaining
microbial
stability
in
plantations
essential
for
optimal
plant
growth.
Unique
communities
play
a
critical
role
shaping
flavor
enhancing
resilience
against
biotic
stressors.
Tea
production
frequently
challenged
by
pests
diseases,
which
can
compromise
both
yield
quality.
While
stress
generally
has
detrimental
effects
on
plants,
it
also
activates
defense
metabolic
pathways,
leading
shifts
communities.
Microbial
biocontrol
agents
(MBCAs),
including
entomopathogenic
antagonistic
microorganisms,
present
promising
alternative
synthetic
pesticides
mitigating
these
stresses.
In
addition
controlling
MBCAs
influence
composition
communities,
potentially
health
resilience.
However,
despite
significant
advances
laboratory
research,
field-level
impacts
microecology
remain
insufficiently
explored.
This
review
provides
insights
into
interactions
among
insects,
offering
strategies
improve
pest
disease
management
plantations.