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doi:10.1016/0022-2011(80)90131-7 
Copyright © 1980 Published by Elsevier Inc.
Polysaccharide and protein degradation, germination, and virulence against mosquitoes in the entomopathogenic fungus Metarhizium anisopliae
Received 1 October 1979.
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Abstract
From a genetically uniform wild-type strain of Metarhizium anisopliae pathogenic to mosquitoes, mutants were selected which were altered in the ability to degrade starch, gelatin, or milk. The mutants with enhanced starch degradation (dep), when grown on starch-containing media, proved hypervirulent toward the mosquito Culex pipiens pipiens in standard laboratory tests. Alterations in protein (gelatin or milk) degradation did not correlate with changes in virulence. The dep mutants appear to belong to the same class as mutants selected previously as hypervirulent and characterized by early spore germination. The relationship among polysaccharide degradation, early germination, and virulence is discussed.
Author Keywords: Metarhizium anisopliae; virulence, genetics of; entomopathogen; fungal enzymes; biological control
