The arabidopsis wall associated kinase-like 10 gene encodes a functional guanylyl cyclase and is co-expressed with pathogen defense related genes
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ArticleAuthors
Meier, StuartRuzvidzo, Oziniel
Morse, Monique
Donaldson, Lara
Kwezi, Lusisizwe
Gehring, Christoph A
KAUST Department
Computational Bioscience Research Center (CBRC)Date
2010-01-26Metadata
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Background: Second messengers have a key role in linking environmental stimuli to physiological responses. One such messenger, guanosine 3?,5?-cyclic monophosphate (cGMP), has long been known to be an essential signaling molecule in many different physiological processes in higher plants, including biotic stress responses. To date, however, the guanylyl cyclase (GC) enzymes that catalyze the formation of cGMP from GTP have largely remained elusive in higher plants. Principal Findings: We have identified an Arabidopsis receptor type wall associated kinase-like molecule (AtWAKL10) as a candidate GC and provide experimental evidence to show that the intracellular domain of AtWAKL10431-700 can generate cGMP in vitro. Further, we also demonstrate that the molecule has kinase activity indicating that AtWAKL10 is a twin-domain catalytic protein. A co-expression and stimulus-specific expression analysis revealed that AtWAKL10 is consistently coexpressed with well characterized pathogen defense related genes and along with these genes is induced early and sharply in response to a range of pathogens and their elicitors. Conclusions: We demonstrate that AtWAKL10 is a twin-domain, kinase-GC signaling molecule that may function in biotic stress responses that are critically dependent on the second messenger cGMP. © 2010 Meier et al.Citation
Meier S, Ruzvidzo O, Morse M, Donaldson L, Kwezi L, et al. (2010) The Arabidopsis Wall Associated Kinase-Like 10 Gene Encodes a Functional Guanylyl Cyclase and Is Co-Expressed with Pathogen Defense Related Genes. PLoS ONE 5: e8904. doi:10.1371/journal.pone.0008904.Publisher
Public Library of Science (PLoS)Journal
PLoS ONEISSN
19326203PubMed ID
20126659PubMed Central ID
PMC2811198Handle URI
http://hdl.handle.net/10754/325282Scopus Count
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