Overexpression of BSK5 in Arabidopsis thaliana Provides Enhanced Disease Resistance.
Bharat Bhusan MajhiGuido SessaPublished in: Plant signaling & behavior (2019)
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.
Keyphrases
- cell wall
- gene expression
- arabidopsis thaliana
- immune response
- reactive oxygen species
- transcription factor
- cell proliferation
- plant growth
- physical activity
- depressive symptoms
- oxidative stress
- dna methylation
- candida albicans
- mental health
- single cell
- pseudomonas aeruginosa
- staphylococcus aureus
- dendritic cells
- single molecule
- protein kinase
- drug induced