TY - JOUR
T1 - Overexpression of BSK5 in Arabidopsis thaliana Provides Enhanced Disease Resistance
AU - Majhi, Bharat Bhusan
AU - Sessa, Guido
N1 - Publisher Copyright:
© 2019, © 2019 Taylor & Francis Group, LLC.
PY - 2019/9/2
Y1 - 2019/9/2
N2 - Plant surface-localized pattern recognition receptors (PRRs) recognize pathogen- or damage-associated molecular patterns (PAMP/DAMPs) and activate pattern-triggered immunity (PTI). PRRs recruit receptor-like cytoplasmic kinases (RLCKs) to transduce the perceived signal to downstream signaling components. Brassinosteroid-signaling kinase 5 (BSK5) is a member of the RLCK XII subfamily and mutational analysis revealed its involvement in plant immunity. Here, we provide evidence that overexpression of BSK5 in transgenic Arabidopsis plants enhanced disease resistance to the bacterial pathogen Pseudomonas syringae and to the fungus Botrytis cinerea. Remarkably, upon treatment with the flg22, elf18 and pep1 PAMP/DAMPs, BSK5-overexpressing plants displayed higher levels of immune responses, including production of reactive oxygen species, callose deposition at the cell wall, and PATHOGENESIS-RELATED1 (PR1) gene expression. Together, these findings further substantiate the role of BSK5 in plant immunity and illustrate its potential use for improving plant disease resistance.
AB - Plant surface-localized pattern recognition receptors (PRRs) recognize pathogen- or damage-associated molecular patterns (PAMP/DAMPs) and activate pattern-triggered immunity (PTI). PRRs recruit receptor-like cytoplasmic kinases (RLCKs) to transduce the perceived signal to downstream signaling components. Brassinosteroid-signaling kinase 5 (BSK5) is a member of the RLCK XII subfamily and mutational analysis revealed its involvement in plant immunity. Here, we provide evidence that overexpression of BSK5 in transgenic Arabidopsis plants enhanced disease resistance to the bacterial pathogen Pseudomonas syringae and to the fungus Botrytis cinerea. Remarkably, upon treatment with the flg22, elf18 and pep1 PAMP/DAMPs, BSK5-overexpressing plants displayed higher levels of immune responses, including production of reactive oxygen species, callose deposition at the cell wall, and PATHOGENESIS-RELATED1 (PR1) gene expression. Together, these findings further substantiate the role of BSK5 in plant immunity and illustrate its potential use for improving plant disease resistance.
KW - Arabidopsis thaliana
KW - BSK5
KW - Botrytis cinerea
KW - PAMP/DAMPs
KW - PTI
KW - Pseudomonas syringae
UR - http://www.scopus.com/inward/record.url?scp=85068521576&partnerID=8YFLogxK
U2 - 10.1080/15592324.2019.1637665
DO - 10.1080/15592324.2019.1637665
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C2 - 31262220
AN - SCOPUS:85068521576
SN - 1559-2316
VL - 14
JO - Plant Signaling and Behavior
JF - Plant Signaling and Behavior
IS - 9
M1 - e1637665
ER -