Polynucleotides, polysaccharides, phospholipids and membranes

As described earlier, plant self-protection from its own defensive compounds can be variously achieved by localization of the active agents in the cell wall, seed protein bodies and vacuoles and by storage of inactive forms (e.g. inactive glycosylated derivatives of the active aglycone). Further, deposition of active agents in dead protective material such as fruit hull, wood and bark ensures effective defence at the point of predator entry as well as protection of the plant from its own defensive compounds. 

In addition to the PRPs outlined above, plants elaborate a variety of other defensive proteins (of which some are constitutive and others also induced by wounding) including protein inhibitors of ct-amylase, chitinase, polygalacturonase and of other glycosidases (Chapter 13)  

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