The effects of barley seed infected with Pyrenophora graminea on storage protein (hordein) patterns

摘要

Pyrenophora graminea is a seed-borne pathogen and is the causal agent of barley leaf stripe. On the basis of SDS-PAGE electrophoresis, hordein patterns (groups C and B) of five barley varieties different in their resistance levels, were tested to defect seeds infected with P. graminea. Three categories of subunits were obtained. Absence of particular subunits in the infected seeds of all varieties, the presence of some subunits in the resistant varieties only, and B-hordein degradation represented in lower molecular subunits in the sensitive varieties,