Extracellular Enzymes of Fusarium graminearum Isolates

Brazilian Archives Of Biology And Technology

Rua Professor Algacyr Munhoz Mader 3775, CIC
Curitiba / PR
Site: http://www.scielo.br/babt
Telefone: (41) 3316-3012
ISSN: 15168913
Editor Chefe: Carlos Ricardo Soccol
Início Publicação: 30/11/1946
Periodicidade: Bimestral
Área de Estudo: Biologia geral

Extracellular Enzymes of Fusarium graminearum Isolates

Ano: 2010 | Volume: 53 | Número: 4
Autores: Gisele Eleonora Kikot, Roque Alberto Hours, Teresa María Alconada
Autor Correspondente: Teresa María Alconada | [email protected]

Palavras-chave: extracellular enzymes, fusarium graminearum, pectinases, cellulases, hemicellulases

Resumos Cadastrados

Resumo Inglês:

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