Frontiers in Physiology,
Год журнала:
2019,
Номер
10
Опубликована: Июнь 21, 2019
Beneficial
fungi
in
the
genus
Trichoderma
are
among
most
widespread
biocontrol
agents
of
plant
pathogens.
Their
role
triggering
defenses
against
pathogens
has
been
intensely
investigated,
while,
contrast,
very
limited
information
is
available
on
induced
barriers
active
insects.
The
growing
experimental
evidence
this
latter
topic
looks
promising,
and
paves
way
toward
development
strains
and/or
consortia
multiple
targets.
However,
predictability
reproducibility
effects
that
these
beneficial
still
somewhat
by
lack
an
in-depth
understanding
molecular
mechanisms
underlying
specificity
their
interaction
with
different
crop
varieties,
how
environmental
factors
modulate
interaction.
To
fill
research
gap,
here
we
studied
transcriptome
changes
tomato
plants
(cultivar
"Dwarf
San
Marzano")
harzianum
(strain
T22)
colonization
subsequent
infestation
aphid
Macrosiphum
euphorbiae.
A
wide
reprogramming,
related
to
metabolic
processes,
regulation
gene
expression
defense
responses,
was
both
separate
treatments,
which
showed
a
synergistic
when
concurrently
applied.
evident
genes
were
associated
multitrophic
Trichoderma-tomato-aphid.
Early
late
involved
direct
insects
(i.e.,
peroxidase,
GST,
kinases
polyphenol
oxidase,
miraculin,
chitinase),
along
indirect
genes,
such
as
sesquiterpene
synthase
geranylgeranyl
phosphate
synthase.
Targeted
untargeted
semi-polar
metabolome
analysis
revealed
alteration
showing
increased
accumulation
isoprenoids
treated
plants.
array
transcriptomic
metabolomics
nicely
fit
higher
mortality
aphids
feeding
plants,
herein
reported,
previously
observed
attractiveness
parasitoid
Aphidius
ervi.
Moreover,
over-expression
transcripts
coding
for
several
families
defense-related
transcription
(bZIP,
MYB,
NAC,
AP2-ERF,
WRKY),
suggesting
fungus
contributes
priming
responses
pest
Collectively,
our
data
indicate
treatment
induces
metabolomic
changes,
underpin
responses.
Plant Cell & Environment,
Год журнала:
2019,
Номер
42(5), С. 1630 - 1644
Опубликована: Янв. 11, 2019
Plant
responses
to
abiotic
stress
include
various
modifications
in
amino
acid
metabolism.
By
using
a
hydroponic
culture
system,
we
systematically
investigate
modification
profiles
and
the
proteome
of
Arabidopsis
thaliana
leaves
during
initial
recovery
from
low
water
potential
or
high
salinity.
Both
treatments
elicited
oxidative
leading
biphasic
response
recovery.
Degradation
highly
abundant
proteins
such
as
subunits
photosystems
ribosomes
contributed
an
accumulation
free
acids.
Catabolic
pathways
for
several
acids
were
induced
indicating
their
usage
alternative
respiratory
substrate
compensate
decreased
photosynthesis.
Our
results
demonstrate
that
rapid
detoxification
potentially
detrimental
Lys
is
priority
period.
The
content
Pro,
which
acts
compatible
osmolyte
stress,
was
adjusted
by
balancing
its
synthesis
catabolism
both
after
treatments.
production
derived
secondary
metabolites
up-regulated
specifically
period,
our
dataset
also
indicates
increased
rates
precursor
Overall,
support
tight
relationship
between
metabolism
responses.
Annual Review of Plant Biology,
Год журнала:
2021,
Номер
72(1), С. 761 - 791
Опубликована: Март 23, 2021
Salicylic
acid
(SA)
is
an
essential
plant
defense
hormone
that
promotes
immunity
against
biotrophic
and
semibiotrophic
pathogens.
It
plays
crucial
roles
in
basal
the
amplification
of
local
immune
responses,
as
well
establishment
systemic
acquired
resistance.
During
past
three
decades,
immense
progress
has
been
made
understanding
biosynthesis,
homeostasis,
perception,
functions
SA.
This
review
summarizes
current
knowledge
regarding
SA
other
biological
processes.
We
highlight
recent
breakthroughs
substantially
advanced
our
how
biosynthesized
from
isochorismate,
it
perceived,
receptors
regulate
different
aspects
immunity.
Some
key
questions
biosynthesis
signaling,
such
produced
via
another
intermediate,
benzoic
acid,
affects
activities
its
transcriptional
regulation
genes,
remain
to
be
addressed.
New Phytologist,
Год журнала:
2020,
Номер
229(3), С. 1234 - 1250
Опубликована: Сен. 26, 2020
Systemic
immunity
triggered
by
local
plant-microbe
interactions
is
studied
as
systemic
acquired
resistance
(SAR)
or
induced
(ISR)
depending
on
the
site
of
induction
and
lifestyle
inducing
microorganism.
SAR
pathogens
interacting
with
leaves,
whereas
ISR
beneficial
microbes
roots.
Although
salicylic
acid
(SA)
a
central
component
SAR,
additional
signals
exclusively
promote
not
immunity.
These
cooperate
in
SAR-
possibly
also
ISR-associated
signaling
networks
that
regulate
The
non-SA
pathway
driven
pipecolic
its
presumed
bioactive
derivative
N-hydroxy-pipecolic
acid.
This
further
regulates
inter-plant
defense
propagation
through
volatile
organic
compounds
are
emitted
SAR-induced
plants
recognized
cues
neighboring
plants.
Both
influence
phytohormone
crosstalk
towards
enhanced
against
pathogens,
which
at
same
time
affects
composition
plant
microbiome.
potentially
leads
to
changes
defense,
plant-microbe,
plant-plant
interactions.
Therefore,
we
propose
such
inter-organismic
could
be
combined
highly
effective
protection
strategies.
Frontiers in Microbiology,
Год журнала:
2020,
Номер
11
Опубликована: Июль 3, 2020
At
different
stages
throughout
their
life
cycle,
plants
often
encounter
several
pathogenic
microbes
that
challenge
plant
growth
and
development.
The
sophisticated
innate
immune
system
prevents
the
of
harmful
via
two
interconnected
defense
strategies
based
on
pathogen
perception.
These
involve
microbe-associated
molecular
pattern-triggered
immunity
microbial
effector-triggered
immunity.
Both
these
responses
induce
mechanisms
for
restricting
attack
to
protect
against
pathogens
terminate
growth.
Plants
develop
memory
after
an
exposure
pathogens,
leading
systemic
acquired
resistance.
Unlike
with
microbes,
make
friendly
interactions
beneficial
boosting
system.
A
spike
in
recent
publications
has
further
improved
our
understanding
as
triggered
by
microbes.
present
study
reviews
current
how
plant-microbe
can
activate
at
level.
We
discuss
interaction
boost
demonstrating
examples
Mycorrhizal
Rhizobial
association
be
exploited
engineer
disease
resistance
crop
improvement.
