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Rice OsPBL1 (ORYZA SATIVA ARABIDOPSIS PBS1-LIKE 1) enhanced defense of Arabidopsis against Pseudomonas syringae DC3000
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Rice OsPBL1 (ORYZA SATIVA ARABIDOPSIS PBS1-LIKE 1) enhanced defense of Arabidopsis against Pseudomonas syringae DC3000
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Rice OsPBL1 (ORYZA SATIVA ARABIDOPSIS PBS1-LIKE 1) enhanced defense of Arabidopsis against Pseudomonas syringae DC3000
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Journal Article
Rice OsPBL1 (ORYZA SATIVA ARABIDOPSIS PBS1-LIKE 1) enhanced defense of Arabidopsis against Pseudomonas syringae DC3000
2016
Overview
The receptor-like cytoplasmic kinases (RLCK family VII) are required for plant defense against various pathogens. Previously,
OsPBL1
(
ORYZA SATIVA ARABIDOPSIS PBS1-LIKE 1
) was isolated from rice as a potential RSV (rice stripe virus) resistant factor, but its physiological roles in plant defense are yet to be investigated. In this study, we demonstrated that
OsPBL1
increased defense against
P. syringae
in transgenic
Arabidopsis.
To ascertain the role of
OsPBL1
gene in plant defense,
OsPBL1
tagged with
HA
(i.e. Hemagglutinin) was overexpressed in
Arabidopsis
and examined for the resistance against
Pseudomonas syringae
pv.
tomato
DC3000 (i.e.
Pst
DC3000). At 3 dpi of
Pst
DC3000, transgenic
Arabidopsis
lines exhibited the reduced chlorotic lesion and propagation of
P. syringae
, compared to wild type. Elevated pathogen resistance of transgenic lines was correlated with increased H
2
O
2
accumulation and callose deposition on the infected leaves. It was also revealed that expression levels of salicylic acid dependent genes such as
PR1
,
PR2
, and
PR5
, were induced higher in transgenic lines than wild type. Taken together, our data suggested that
OsPBL1
exerted the role in defense against pathogen attacks in plant via mainly facilitating salicylic acid dependent pathway.
Publisher
Springer Netherlands,Springer Nature B.V
Subject
