MICROSCOPIA DE EPIFLUORESCÊNCIA PARA A DETERMINAÇÃO DE BIOMASSA MICELIAL EM SUBSTRATO DE CULTIVO SÓLIDO PARTICULADO
Ano: 2012 | Volume: 15 | Número: Suplemento
Autores: MORAIS, D. C.; ROSSETO, P.; MARCANTE, R. C.; FRISON, P. S.; FERREIRA, F. G.; TANAKA, H. S.; COLAUTO, N. B.; VALLE, J. S. do; SOUZA, S. G. H.; ALBERTON, O.; LINDE, G. A. Autor Correspondente: MORAIS, D. C. | [email protected]
Determination of fungal mycelial biomass grown on solid substrate cultivation (SSC) is still a challenge due to the difficulty in separating mycelium and substrate. The objective of this study was to evaluate the epifluorescence microscopy to determine the mycelial biomass of Pleurotus ostreatus grown in SSC. P. ostreatus was grown in malt extract liquid medium and mycelial biomass was separated by centrifugation. It was then lyophilized and milled. Mycelial powder was added at known concentrations to SSC composed of sugarcane bagasse and soy fiber, previously autoclaved. Mycelial biomass was determined by epifluorescence microscopy. In order to promote mycelial biomass variation for the determination by epifluorescence microscopy, SSC added at different iron concentrations was used for fungus growth. It was concluded that the technique has low precision and accuracy, which implies the need for further studies in order to apply this technique for the determination of mycelial biomass grown in SSC.