Ecological Differences Between Four Australian Isolates of Aphelenchus Avenae Bastian

Abstract

Goodey (1963) synonymized all species of the genus Aphelenchu8 Bastian, 1865, under Aphelenchu8 avenae Bastian, 1865, emphasizing the lack of adequate detail in existing species descriptions and urging further close detailed study of different populations. To study variation in A. avenae in Australia we collected isolates from various places and maintained them in monoxenic culture on Rhizoctonia 80lani Kuhn in the laboratory. Several of the isolates showed distinct ecological differences and the results of experiments to measure these differences are reported here.