Untersuchungen über die Ultrastruktur von Saprolegnia monoica / Ultrastructural Studies of Saprolegnia monoica

Abstract

In the tip region of a young hyphae vesicles with a diameter of 0.18 μ and vacuoles form the “Spitzenkörper”. This special differentiation is missed in old stages of hyphae. The vesicles enlarge the CM. The lomasomes in the transitional region serve for the synthesis of cell wall substances. Nuclearenvelope, ER, dictyosomes, vesicles and CM are accounted as a connecting system. The dictyogenesis from vesicles of the ER or the nuclear envelope is described. The mitochondria which occur different in the regions of the hyphae form potlike stages which contain lipoid droplets in their inside. Furthermore there occur isolated lipoid droplets which are in exchange with “polygonale bodies”, which are considered as glycoproteids. Multivesicular bodies, ER-vesicles and vacuoles are described too.