Род Cercospora в Республике Армения

Abstract

57 species of Cercospora have been discovered in Armenia, of which 20 species (35 %) grow on trees and bushes, while 37 (65 %) are herbotrophs. Affected plants consist of 55 genus and 29 families of higher plants. The pre-mountainous and mountainous zones, up to 1300–1800 meters above sea level, are the most favorable for Cercospora. Some solitary species can be found at a high altitude of 2200 meters above sea level. The ascomycetes stage of Mycosphaerella in Armenia has been reliably observed only in C. ligustri Roum as M. ligustri Desm. Adapting to conditions that are more or less extreme, Cercospora species have shown a transition from one vital type of sporulation, the open and unprotected form, to the immersed and more protected sporulation, forming endogenic sclerotia and pycnidia.