Transcriptional activation of a maize calcium-dependent protein kinase gene in response to fungal elicitors and infection.

Plants respond to pathogen infection with the activation of the expression of pathogenesis-related genes, a response that involves Ca2+-regulated protein phosphorylation processes. We report here the isolation of a full-length complementary DNA encoding a calcium-dependent protein kinase (CPK) gene from maize. CPK genes occur in maize as members of a multigene family, but only one specific CPK gene, the ZmCPK10 gene here described, is transcriptionally activated in response to both fungal infection and treatment with fungal elicitors.

Expression of class I O-methyltransferase in healthy and TMV-infected tobacco.

Tobacco possesses two distinct classes of O-methyltransferases (OMTs; S-adenosyl-L-methionine:o-diphenol O-methyltransferases; EC 2.1.1.

Regulation of enzymes involved in lignin biosynthesis: induction of O-methyltransferase mRNAs during the hypersensitive reaction of tobacco to tobacco mosaic virus.

The mRNAs encoding orthodiphenol-O-methyltransferases (OMTs; EC 2.1.1.