Production and regulation of lignin degrading enzymes from Lentinus squarrosulus (mont.) Singer and Psathyrella atroumbonata Pegler
Keywords:
Basidiomycetes, Lentinus squarrosulus, Psathyrella atroumbonata, ligninase, cofactors.Abstract
The influence of metal ions on the production and regulation of ligninase and mycelia extension of two
type Basidiomycetes ( Lentinus squarrosulus and Psathyrella atroumbonata) cultivated on
lignocellulose waste was investigated. Mn2+ and Ca2+ ions stimulated growth of both fungi and mycelia
extension significantly. Ligninase production increased two to twelve fold under the influence of Mn2+
and Ca2+ ions at concentrations of 20 to 80 mM. Mg2+ and K+
ions did not stimulate growth and
extension of fungal mycelia, rather fungal cultures became deactivated after six days. The importance
of mycelia extension and enhanced enzyme production has biotechnological applications in wood and
pulp, textile and tanning, as well as in oil industries.
