COMPARATIVE PROTEIN ELECTROPHORETIC AND ISOENZYMIC PATTERNS OF PHYTOPHTHORA-CRYPTOGEA ISOLATES FROM CHILEAN KIWIFRUIT AND NORTH-AMERICAN DECIDUOUS FRUITS

Isolates of Phytophthora from fruit crops, previously identified as P. cryptogea on the basis of standard morphological criteria, were compa red using electrophoretic patterns of total soluble mycelial proteins and isozyme analysis. According to these criteria, all 33 isolates rec overed from kiwifruit in Chile were similar or identical to isolates f rom California recovered from kiwifruit, apple, and cherry. In contras t, the Chilean and California isolates appeared no more related to New York isolates of P. cryptogea than they were to isolates of P. cactor um, P. cinnamomi, and P. megasperma that were similarly examined. Isol ates identified as P. cryptogea from deciduous fruit crops in New York appear to belong to a different taxon than isolates of P. cryptogea f rom fruit crops in Chile and California.