Mycelial growth of strains of Pleurotus ostreatus developed on agar and its correlation with the productivity in pilot production farm

• Autor(a) principal: Sastre-Ahuatzi,M.
• Data de Publicação: 2007
• Outros Autores: Téllez-Téllez,M., Díaz-Godínez,G., Montiel-González,A.M., Díaz,R., Sánchez,C.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Journal of Microbiology
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300035
• topic: Pleurotus ostreatus; 2-deoxyglucose; laccases activity; proteases activity; mushroom production

Radial growth rate, intracellular laccases and proteases activities, and protein content were evaluated in five strains of Pleurotus ostreatus, grown on starch-based and glucose-based agar media containing different concentrations of the glucose analogue 2-deoxyglucose (2-DG). Productivity of the strains in pilot scale cultivation was also determined. The mycelium of four strains had approximately between 0.6- to 3-fold higher protein content when grown on glucose medium containing 0.01 g/L of 2-DG than when grown on glucose medium. The radial growth rate and intracellular laccases activity of some strains showed a positive and a negative correlation with the productivity, respectively. These results suggest that the strains with high radial growth rate and low intracellular laccases activity on glucose without 2-DG, on starch without 2-DG or on glucose containing 0.01 g/L of 2-DG are highly productive in pilot production farm.