2012
DOI: 10.5433/1679-0359.2012v33supl2p3055
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Identificação de proteases produzidas pelo fungo entomopatogênico Beauveria bassiana (Bals) Vuill. Cepa CG432 previamente ativada em insetos vivos de broca do café ((Hypothenemus hampei))

Abstract: Identificação de proteases produzidas pelo fungo entomopatogênico ResumoConídios de fungos entomopatogênicos atravessam o exoesqueleto do inseto pela ação mecânica do tubo germinativo e produção de múltiplas isoformas de proteases, quitinases e lipases em resposta à composição da cutícula do inseto. Desta forma o objetivo deste trabalho foi extrair, purificar e caracterizar a estrutura de proteases produzidas em cultivo submerso por Beauveria bassiana CG432 previamente ativada em adultos vivos de broca-do-café… Show more

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“…The insect cuticle is mainly composed of chitin with proteins, acting as a primary barrier against pathogens (Goettel et al, 2005;Xue et al, 2014). Beauveria bassiana produces chitinases and proteases to disintegrate the insect cuticle, but its efficacy depends on the spore size, conidia germination rate and metabolite production (Varea et al, 2012;Sree and Varma, 2015) and the composition of free fatty acids in the cuticle of the insects (Sree and Varma, 2015;Wronska et al, 2018). Long-chain fatty acids such as capric, undecanoic, stearic and oleic do not prevent B. bassiana conidia germination, but they may cause germ tube autolysis, preventing hyphae growth.…”
Section: Selection Of Isolatesmentioning
confidence: 99%
“…The insect cuticle is mainly composed of chitin with proteins, acting as a primary barrier against pathogens (Goettel et al, 2005;Xue et al, 2014). Beauveria bassiana produces chitinases and proteases to disintegrate the insect cuticle, but its efficacy depends on the spore size, conidia germination rate and metabolite production (Varea et al, 2012;Sree and Varma, 2015) and the composition of free fatty acids in the cuticle of the insects (Sree and Varma, 2015;Wronska et al, 2018). Long-chain fatty acids such as capric, undecanoic, stearic and oleic do not prevent B. bassiana conidia germination, but they may cause germ tube autolysis, preventing hyphae growth.…”
Section: Selection Of Isolatesmentioning
confidence: 99%