Sequence and expression of a wheat gene that encodes a novel protein associated with pathogen defense.
Wheat (Triticum aestivum) exhibits local acquired resistance to the powdery mildew pathogen Erysiphe graminis f. sp. tritici. The resistant state can be induced by a preinoculation with the nonhost pathogen E. g.f. sp. hordei, the barley powdery mildew, and is accompanied by the activation of putative defense genes. Here, we report the sequence of a pathogen-induced gene, WIR1a, and a corresponding cDNA, WIR1, that encode novel defense-related proteins of 88 and 85 amino acids, respectively. Analysis of the primary structure of these proteins predicts them to be integral membrane proteins with extracytoplasmic C-terminal domains rich in proline and glycine, through which the proteins possibly interact with the cell wall.
Bull
J
J
Institute of Plant Biology, University of Zurich, Switzerland.
Mauch
F
F
Hertig
C
C
Rebmann
G
G
Dudler
R
R
D000595:Amino Acid Sequence; D001203:Ascomycota / Q000502:physiology*; D001483:Base Sequence; D004247:DNA; D007113:Immunity, Innate / Q000235:genetics; D008969:Molecular Sequence Data; D010935:Plant Diseases; D010940:Plant Proteins / Q000235:genetics*; D014908:Triticum / Q000235:genetics* / Q000276:immunology / Q000382:microbiology
D010940:Plant Proteins; D004247:DNA