title: Induction of laccase activity in the white rot fungus Pleurotus ostreatus using water polluted with wheat straw extracts.
abstract: The purpose of this work was to explore the use of polluted water effluents from wheat straw using industries as inducers of lignocellulolytic enzymatic activities in cultures of white rot basidiomycetes. For this purpose, we studied the effect of a wheat straw water extract on the evolution of the laccase activity recovered from submerged cultures of Pleurotus ostreatus made in different media and under various culture conditions. Our results demonstrated an accumulative induction effect in all the cultures and conditions tested. This induction is parallel to changes in the laccase electrophoretic profiles recovered from the culture supernatants. The isoenzyme that appeared to be mainly responsible for the laccase activity under these conditions was laccase 10, as confirmed by sequencing the induced protein. These results support the idea of using wheat straw effluents as inducers in liquid cultures of P. ostreatus mycelia for the production of ligninolytic enzymatic cocktails.
authors: Department of Agrarian Production, Public University of Navarre, 31006 Pamplona, Spain.
authors: Alejandra
authors: A
authors: Parenti
authors: Elaia
authors: E
authors: Muguerza
authors: Amaia Redin
authors: AR
authors: Iroz
authors: Alejandra
authors: A
authors: Omarini
authors: Enma
authors: E
authors: Conde
authors: Manuel
authors: M
authors: Alfaro
authors: Raúl
authors: R
authors: Castanera
authors: Francisco
authors: F
authors: Santoyo
authors: Lucía
authors: L
authors: Ramírez
authors: Antonio G
authors: AG
authors: Pisabarro
mesh_terms: D000595:Amino Acid Sequence; D018533:Biomass; D002241:Carbohydrates / Q000032:analysis; D004790:Enzyme Induction / Q000187:drug effects; D007527:Isoenzymes / Q000378:metabolism; D042845:Laccase / Q000096:biosynthesis* / Q000737:chemistry; D008031:Lignin / Q000378:metabolism; D008969:Molecular Sequence Data; D008970:Molecular Weight; D010636:Phenols / Q000032:analysis; D020076:Pleurotus / Q000187:drug effects / Q000201:enzymology* / Q000254:growth & development; D014908:Triticum / Q000737:chemistry*; D014866:Waste Products / Q000032:analysis*; D014873:Water Pollutants / Q000494:pharmacology*
chemical_list: D002241:Carbohydrates; D007527:Isoenzymes; D010636:Phenols; D014866:Waste Products; D014873:Water Pollutants; D008031:Lignin; D042845:Laccase