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FEBS Lett. 1999 Oct 8;459(2):149-53.

Identification of new early markers of the hypersensitive response in Arabidopsis thaliana(1).

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Scottish Crop Research Institute, Department of Virology, Invergowrie, Dundee, UK.


New molecular markers of the hypersensitive response (HR) of Arabidopsis thaliana to the bacterial pathogen Xanthomonas campestris pv. campestris (X.c.c.) have been identified by differential screening of a cDNA library constructed from suspension cells inoculated by an HR-inducing strain in the presence of cycloheximide. Seven families of genes (called Athsr) have been isolated, show similarities to voltage-dependent anion channels (VDAC) and alternative oxidases, or are novel proteins. Athsr genes have shown to be specifically or preferentially expressed during the HR. These data suggest that Athsr genes might be involved in early events conditioning the establishment of the HR.

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