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Production of cuticle-degrading proteases by Nomuraea rileyi and its virulence against Anticarsia gemmatalis Ciência Rural
Nunes,Ana Rita Fonseca; Martins,Juliana Nascimento; Furlaneto,Márcia Cristina; Barros,Neiva Monteiro de.
Nomuraea rileyi represents an important natural control agent of Anticarsia gemmatalis preventing populations from reaching economic threshold levels in soybean. During the processes of host infection, entomopathogenic fungi produce extracellular proteases, which degrade the host cuticle and are suggested to be virulence determinants. It was examined the production of subtilisin-like (Pr1) and trypsin-like (Pr2) proteases in two strains (NR458 and CG434) of N. rileyi and its possible role in the process of pathogenicity to this caterpillar. Fungal growth was performed in a mineral medium containing nitrate, and supplemented with the cuticle or exuviae from A. gemmatalis, or with the non-cuticular substrate casein. In medium containing nitrate as sole...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biological control; Subtilisin-like [Pr1]; Trypsin-like [Pr2].
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000900001
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