Intraspecific variations of Ditylenchus myceliophagus goodey, 1958 in relation to hosts, temperature and age of nematode culture
Abstract
The effects of nine fungal hosts (Alternaria alternata, Agaricus bisporus, Fusarium solani, Mucor sp., Pleurotus sajor-caju, Rhizoctonia solani, R. bataticola, Sclerotium sclerotiarum and Trichoderma harzianum), four temperatures (13, 20, 25 and 30°±1°C) and three culture ages (30, 40 and 55 days) on taxonomic characters of Ditylenchus myceliophagus were investigated. Occurrence of males, shape of stylet knobs, number of lateral lines, junction between corpus and median bulb, arrangement of oocytes in ovary, crustaformeria, limit of anterior genital tract, shape of spicules, and covering of bursa were not affected by temperature, type of host and age of host culture. However, marked variations occurred in the basal oesophageal bulb and tail shape. Morphometric and allometric characters were influenced to varying degrees by these environmental factors.
Keywords
Ditylenchus myceliophagus, morphometric, allometric characters, taxonomy, temperature, age, fungal hosts
