Seeds of various wild and cultivated pulses express varied degrees of resistance to damage by Callosobruchus maculatus, a major pest of stored pulses. Seeds were analysed for trypsin/chymotrypsin inhibitors (qualitatively and quantitatively) and protein pro®les (SDS-polyacrylamide gel electrophoresis) to study the chemical basis of resistance to bruchid infestation. Seeds of the wild pulses Dun...

6 The ability to develop invasive haustoria is the key feature of parasitic angiosperms. 7 The haustorium attaches the parasite to the host, penetrates the host while keeping 8 its own tissues intact, develops a vascular continuity between the host and parasite 9 and ultimately provides the conduit through which host and parasite materials flow. 10 The ability to make haustoria distinguishes pa...