INMIBO ( EX - PROPLAME)   14614
INSTITUTO DE MICOLOGIA Y BOTANICA
Unidad Ejecutora - UE
artículos
Título:
Effect of co-cultivation of two Pleurotus species on lignocellulolytic enzyme production and mushroom fructification. International Biodeterioration and Biodegradation
Autor/es:
MAIRA CARABAJAL; LAURA LEVIN; EDGARDO ALBERTÓ; BERNARDO E. LECHNER
Revista:
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdan; Año: 2011
ISSN:
0964-8305
Resumen:
Co-cultivation of
mushroom species produce changes on fungal enzyme production and fructification
that were not in-depth studied hitherto. This work was conducted with the aim
of studying how the interactions between Pleurotus
ostreatus and Pleurotus citrinopileatus
in a dual culture affect the lignocellulolytic enzymes production, influence
yield values and modify the morphological properties of basidiomata obtained.
With this purpose monocultures of both species in a straw-based substrate were
investigated, as well as dual-cultures with 3 different spatial patterns (one
fungus in the upper portion of the bag and the second in the bottom, the
opposite spatial pattern, and a mix of spawn from both, scattered in each bag).
Co-cultivation did not increase basidiomata production, moreover, it inhibited carpophore
development of P. ostreatus in the
mix, and decreased basidiomata stems length significantly. Biological
efficiencies achieved in monocultures of P.
ostreatus and P. citrinopileatus
were 95.3% and 67.6% respectively. Different spatial patterns affected not only enzyme production but also
mycelial yield. Cellulolytic and xylanolytic activities detected increased
significantly when P. ostreatus was inoculated in the upper
portion of the bag and P. citrinopileatus
in the bottom part, but co-cultivation did not stimulate ligninolytic
enzyme production. The highest laccase (8.2 U g-1) and Mn-peroxidase
(7.5 U g-1) activities were detected in monocultures of P. ostreatus, in coincidence with
maximum lignin degradation (28%).