Ultrastructural studies of concentric bodies in the ascomycetous fungus Venturia inaequalis

Abstract

Concentric bodies about 280 nm in diameter were often observed as inclusions in hyphae of the perithecial wall and infrequently were seen in the vegetative hyphae and conidiophores of Venturia inaequalis. These apparently spherical bodies were found singly or in clusters and consisted of several distinct layers. The inclusions appeared to be identical with those found in a number of lichen mycobionts.