Chitin elicitor receptor kinase 1 (CERK1) is required for the non-host defense response of Arabidopsis to Fusarium oxysporum f. Sp. cubense

Banana wilt disease is a typical vascular disease caused by the fungal pathogen Fusarium oxysporum f. sp. cubense 4 ( Foc 4). Pattern recognition receptors in the plant cell membrane can recognize pathogen-associated molecular patterns (PAMPs) to activate multi-layer defense responses, including def...

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Bibliographic Details
Published in:European journal of plant pathology 2017-03, Vol.147 (3), p.571-578
Main Authors: Huaping, Huang, Xiaohui, Jing, Lunying, Wu, Junsheng, Huang
Format: Article
Language:English
Subjects:
Agriculture
Arabidopsis
Arabidopsis thaliana
Bananas
Biomedical and Life Sciences
Chitin
Ecology
Fungi
Fusarium oxysporum
Kinases
Life Sciences
Musa
Pathogens
Pattern recognition
Plant diseases
Plant Pathology
Plant Sciences
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Summary:Banana wilt disease is a typical vascular disease caused by the fungal pathogen Fusarium oxysporum f. sp. cubense 4 ( Foc 4). Pattern recognition receptors in the plant cell membrane can recognize pathogen-associated molecular patterns (PAMPs) to activate multi-layer defense responses, including defense gene expression, stomatal closure, reactive oxygen species (ROS) burst and callose deposition, to limit pathogen growth. In the present study, we found that chitin elicitor receptor kinase 1 (CERK1) was required for the non-host resistance of Arabidopsis thaliana to Foc B2 (a strain of Foc 4). The cerk1 mutant had weaker defense responses after Foc B2 treatment, including lower expression of PAMP- and salicylic acid-responsive genes, no stomatal closure, lower ROS level and less callose deposition, than that of the wild-type plant. Consistent with this, the cerk1 mutant plants exhibited higher susceptibility to non-host pathogen Foc B2. These results suggest the crucial importance of CERK1 in Foc B2-triggered non-host resistance.
ISSN:0929-1873
1573-8469
DOI:10.1007/s10658-016-1026-3