Figure 6

Proposed model for TAXI-type OsCLP activity during pathogen attack. Two major ways that the host can suppress fungal infection are indicated. To protect the host from cell-wall degrading enzymes (xylanases) secreted from the fungi, the host secretes enzyme inhibitors (xylanase inhibitors) to suppress biochemical activities. These defense-related proteins contain biochemical activity (chitinase) that is activated by pathogen infection and secreted to directly attack the fungi, resulting in protection of the host cells.