Arabidopsis OTU2 deubiquitinates cysteine protease RD21A to enhance clubroot resistance
Chao Li,
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Sha Li,
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Lu Feng
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et al.
The Plant Journal,
Journal Year:
2025,
Volume and Issue:
122(1)
Published: April 1, 2025
SUMMARY
Clubroot
is
a
major
threat
to
cruciferous
crops
worldwide,
largely
due
the
complex
pathogenesis
of
its
causal
agent,
Plasmodiophora
brassicae
,
and
limited
availability
genetic
resistance
in
plants.
Previous
research
has
shown
that
P.
secretes
E3
ubiquitin
ligase
PbE3‐2,
which
targets
degrades
Arabidopsis
thaliana
cysteine
protease
RD21A
facilitate
infection.
In
this
study,
we
identified
plant
defense
mechanism
counteracts
pathogen
virulence
strategy.
We
found
A.
deubiquitinating
enzyme
OTU2,
whose
expression
upregulated
during
infection,
interacts
with
RD21A.
Notably,
OTU2
stabilized
by
deubiquitination
inhibited
interaction
between
PbE3‐2
Furthermore,
overexpression
enhanced
an
RD21A‐dependent
manner.
Collectively,
our
findings
demonstrate
deubiquitinates
RD21A,
protecting
it
from
PbE3‐2‐mediated
degradation
thereby
mitigating
virulence.
This
study
provides
new
insights
into
immune
mechanisms
offers
potential
strategies
for
developing
clubroot‐resistant
crops.
Language: Английский
Targeting conserved secreted effectors to control rice blast
Trends in Plant Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 1, 2024
Language: Английский
CaZingipain2 Acts Positively in Pepper (Capsicum annuum L.) Immunity against R. solanacearum
Ruijie Wu,
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Zhen Wu,
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Yalin Qing
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et al.
Plants,
Journal Year:
2024,
Volume and Issue:
13(18), P. 2552 - 2552
Published: Sept. 11, 2024
Bacterial
wilt
caused
by
Language: Английский
Identification and characterization of specific motifs in effector proteins of plant parasites using MOnSTER
Giulia Calia,
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Paola Porracciolo,
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Yongpan Chen
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et al.
Communications Biology,
Journal Year:
2024,
Volume and Issue:
7(1)
Published: July 12, 2024
Plant
pathogens
cause
billions
of
dollars
crop
loss
every
year
and
are
a
major
threat
to
global
food
security.
Identifying
characterizing
effectors
is
crucial
towards
their
improved
control.
Because
poor
sequence
conservation,
effector
identification
challenging,
current
methods
generate
too
many
candidates
without
indication
for
prioritizing
experimental
studies.
In
most
phyla,
contain
specific
motifs
which
influence
localization
targets
in
the
plant.
Therefore,
there
an
urgent
need
develop
bioinformatics
tools
tailored
pathogen
effectors.
To
circumvent
these
limitations,
we
have
developed
MOnSTER
tool
that
identifies
clusters
protein
sequences
(CLUMPs).
can
be
fed
with
identified
by
de
novo
or
from
databases
such
as
Pfam
InterProScan.
The
advantage
reduction
motif
redundancy
clustering
them
associating
score.
This
score
encompasses
physicochemical
properties
AAs
occurrences.
We
built
up
our
method
identify
discriminant
CLUMPs
oomycetes
Consequently,
applied
on
plant
parasitic
nematodes
six
about
60%
known
nematode
candidate
parasitism
proteins.
Furthermore,
found
co-occurrences
domains
important
invasion
pathogenicity.
potentiality
this
goes
beyond
characterization
used
easily
cluster
calculate
CLUMP-score
any
set
sequences.
Language: Английский