INFIVE 05416
INSTITUTO DE FISIOLOGIA VEGETAL
Unidad Ejecutora - UE
artículos
Título:
Screening for alkaline keratinolytic activity in fungi isolated from soils of the biosphere reserve Parque Costero del Sur (Argentina).
Autor/es:
ELÍADES, L. A.; CABELLO, M. N.; VOGET, C. E.; GALARZA, B.; SAPARRAT M. C. N.
Revista:
World Journal Microbiology and Biotechnology
Editorial:
Springer Netherlands
Referencias:
Año: 2010
ISSN:
1573-0972
Resumen:
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A screening was carried out on 69 fungal strains isolated
from alkaline-calcareous, neutral and alkaline-sodic soils,
as well as from their associated plant material, to determine
their ability to grow at alkaline pH. A total of 32 fungi were selected for
their ability to produce alkaline keratinase activity in submerged shaken
cultures supplemented with soybean meal (SM) and tryptone and on cow hair
(CH) under solid state fermentation conditions. Although several fungal strains
produced keratinolytic activity on both SM and
CH, they differed in the levels detected. Among them, Aspergillus niger, Cladosporium
cladosporioides, Metarrhizium anisopliae, Neurospora tetrasperma
and Westerdikella dispersa were
the best producers, with levels higher than 1.2 U ml-1. Different
fungal species are here reported for the first time for their ability to
produce keratinolytic activity at alkaline pH.
