INMIBO ( EX - PROPLAME)   14614
INSTITUTO DE MICOLOGIA Y BOTANICA
Unidad Ejecutora - UE
artículos
Título:
Search for new naturally occurring strains of Pleurotus from Argentina to improve yields. P. albidus as a novel proposed species for mushroom production
Autor/es:
BERNARDO E. LECHNER; EDGARDO ALBERTÓ
Revista:
REVISTA IBEROAMERICANA DE MICOLOGIA
Editorial:
ASOCIACION ESPANOLA MICOLOGIA-AEM
Referencias:
Lugar: Londres; Año: 2010
ISSN:
1130-1406
Resumen:
Yield values and morphological variations of fruiting bodies obtained
from the cultivation of fourteen Pleurotus
strains isolated from naturally occurring specimens from Argentina were tested
on supplemented Salix sawdust,
wheat straw and supplemented wheat straw. The species studied were
Pleurotus albidus, P. cystidiosus, P. djamor, P.
ostreatus and P. pulmonarius. The strains were tested at different
temperatures on Nobles medium. The maximum rate growth was reached by strains of P.
pulmonarius, P. albidus, and P. ostreatus. No
relationship was found when optimal mycelium growth, incubation time and yields
were compared. In general, wild strains had a good
performance on W or SW. The highest yield was obtained with P. albidus on wheat straw (BE 171.3 %)
which overcame in 82 % the yield obtained for the commercial strain in the
same substrate. When morphological variations were analyzed for each species, significant
differences were found among strains. It was also possible to find a strain of P. ostreatus with better BE than the
commercial strain assayed. We propose the study of naturally occurring species
as a useful practice to improve yields and to preserve germplasm of fungal
species. The high BE obtained on SW and easy cultivation techniques indicate
that P. albidus could be an interesting species for commercial
production.