Extracellular enzymes of Fusarium graminearum isolates

AUTOR(ES)

Kikot, Gisele Eleonora, Hours, Roque Alberto, Alconada, Teresa María

FONTE

Brazilian Archives of Biology and Technology

DATA DE PUBLICAÇÃO

2010-08

RESUMO

Fusarium graminearum isolates from three different agroecological regions in Argentina were examined according to the production of different extracellular enzyme activities of potential biotechnological interest: pectinases (PGase: polygalacturonase and PMGase: polymethylgalacturonase), cellulase (CMCase: carboxymethylcellulase) and hemicellulase (xylanase). The isolates were grown in minimum salt medium supplemented with 0.25% glucose, 0.125% citric pectin and 0.125% oat bran as carbon sources and/or enzyme inducers. PGase activity was detected early (after two days of incubation) in all the cultures; it was found to be the highest for all the isolates. PMGase was high only for those isolates of the II region. CMCase and endoxylanase activities were particularly found at late stages (after four and seven days of incubation, respectively) and the maximum values were lower than pectinase activities.

Documentos Relacionados

• Aggressiveness of Fusarium oxysporum and Fusarium solani isolates to yerba-mate and production of extracellular enzymes
• Production and characterization of galactose oxidase produced by four isolates of Fusarium graminearum
• Deoxynivalenol, acetyl deoxynivalenol, and zearalenone formation by Canadian isolates of Fusarium graminearum on solid substrates.
• Variation in Deoxynivalenol, 15-Acetyldeoxynivalenol, 3-Acetyldeoxynivalenol, and Zearalenone Production by Fusarium graminearum Isolates †
• Infecção por Fusarium graminearum e Fusarium verticillioides em sementes de milho