title: Sem study on the invasion of Nomuraea rileyi (Farlow) on silkworm, Bombyx mori Linn. causing green muscardine.
abstract: The mature conidia of Nomuraea rileyi (Farlow) germinate on the larval integument of Bombyx mori within 24 h and penetrate the cuticle within 36 h after inoculation at 24.0 +/- 1.0 degrees C temperature and 80.0 +/- 5.0% relative humidity. The penetrating hyphae multiply by budding and septa formation in the hemocoel, and the larva succumbs to the infection 6-7 days post-treatment. The hyphal bodies elongate and become interwoven with other hyphae forming a mycelial complex across different tissues. The ramification of hyphae along the epidermal tissue results in larval mummification in 7-8 days. Numerous conidiophores emerge, producing a confluent white fungal mat over the entire surface of the host larva by 9-10 days. Pale green conidia develop, making the larval body green. Life cycle of the fungus on B. mori is completed in 10-11 days.
authors.affiliation: Electron Microscopy Unit, Central Sericultural Research and Training Institute, Srirampura, Mysore-570 008, India. root@CSRTI.ERNET.IN
authors.forename: V
authors.initials: V
authors.lastname: Kumar
authors.forename: G P
authors.initials: GP
authors.lastname: Singh
authors.forename: V
authors.initials: V
authors.lastname: Kumar
authors.forename: A M
authors.initials: AM
authors.lastname: Babu
authors.forename: R K
authors.initials: RK
authors.lastname: Datta