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OsWAKL21, a putative receptor of rice cell wall damage activates alternate signaling in rice and Arabidopsis to induce immunity

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Title OsWAKL21, a putative receptor of rice cell wall damage activates alternate signaling in rice and Arabidopsis to induce immunity
 
Creator Malukani, K. K.
Ranjan, A.
Hota, S. J.
Patel, H. K.
Sonti, Ramesh V.
 
Subject OsWAKL21
putative receptor of rice cell wall
rice
Arabidopsis
alternate signaling
 
Description Accepted date: 27 October 2019
Xanthomonas oryzae pv. oryzae (Xoo) causes the serious bacterial blight disease of rice. As part of its virulence repertoire, Xoo secretes various
cell wall degrading enzymes (CWDEs) such as cellulases, xylanases and a Lipase/esterase (LipA). Conversely, treatment of rice tissues with any
of these purified enzymes activates immune responses. Plants sense this cell wall damage as a mark of infection and induce immune responses.
Very little information is available about the plant functions that are involved in the elaboration of cell wall damage induced immune responses.
Transcriptome analyses revealed a rice cell wall-associated receptor kinase, OsWAKL21 that is upregulated following treatment with either LipA
or Xoo. VIGS mediated downregulation of OsWAKL21 attenuates LipA induced immune responses. Overexpression of OsWAKL21 in rice
mimics LipA treatment in induction of immune responses, activation of JA pathway and enhanced expression of defence related genes, indicating
that it plays an important role in elaboration of LipA induced immune responses. Ectopic expression of OsWAKL21 in Arabidopsis also activates
plant immune responses. OsWAKL21 is a moonlighting kinase having in vitro kinase and guanylate cyclase activities. Interestingly, OsWAKL21
needs kinase activity to activate immune responses in rice while in Arabidopsis it needs the guanylate cyclase activity. Thus OsWAKL21 is
activating similar immune responses in two different species but via different mechanisms.
 
Date 2019-10-30T10:39:17Z
2019-10-30T10:39:17Z
2019
 
Type Other
 
Identifier (Abstract) Molecular Plant-Microbe Interactions 32(10): S1.70
1943-7706
http://223.31.159.10:8080/jspui/handle/123456789/1010
https://apsjournals.apsnet.org/doi/pdf/10.1094/MPMI-32-10-S1.1
https://doi.org/10.1094/MPMI-32-10-S1.1
 
Language en_US
 
Publisher American Phytopathological Society