Stimulation of ligninolytic peroxidase activity by nitrogen nutrients in the white rot fungus Bjerkandera sp. strain BOS55.

E.E.J. Kaal, E. de Jong, J.A. Field

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    111 Citations (Scopus)

    Abstract

    Bjerkandera sp. strain BOS55, a newly isolated wild-type white rot fungus, produced lignin peroxidase (LiP) in nitrogen (N)-sufficient glucose-peptone medium, whereas no LiP was detectable in N-limited medium. The production of LiP was induced by the peptide-containing components of this medium and also by soy bean protein. Furthermore, the production of manganese-dependent peroxidase was stimulated by organic N sources, although lower production was also evident in N-limited medium. Further research showed that the induction of LiP depended on the combination of pH and the type of N source. An amino acid mixture and ammonium induced LiP only at either pH 6 or 7.3, respectively. Peptone induced LiP activity at all pH values tested; however, the highest activity was observed at pH 7.3. The results presented here indicate that Bjerkandera spp. are distinct from the model white rot fungus, Phanerochaete chrysosporium, which produces ligninolytic peroxidases in response to N limitation.
    Original languageEnglish
    Pages (from-to)4031-4036
    JournalApplied and Environmental Microbiology
    Volume59
    Publication statusPublished - 1993

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