Gn. Elsayed et al., INSECT CUTICLE AND YEAST EXTRACT EFFECTS ON GERMINATION, GROWTH, AND PRODUCTION OF HYDROLYTIC ENZYMES BY NOMURAEA-RILEYI, Mycopathologia, 122(3), 1993, pp. 143-147
Larval cuticle of Helicoverpa (Heliothis) zea and yeast extract added
to a minimal medium (MM) induced germination of conidia of Nomuraea ri
leyi whereas sterile distilled water or MM alone did not. Yeast extrac
t increased mycelial yield, but when cuticle was added, mycelial yield
significantly decreased. Proteases and chitinases of N. rileyi were o
nly expressed when cuticle was added to the MM.