Terverticillate penicillia studied by direct electrospray mass spectrometric profiling of crude extracts II. Database and identification

Jørn Smedsgaard

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    A mass spectral database was built using standard instrument software from 678 electrospray mass spectra (mass profiles) from crude fungal extracts of terverticillate taxa within the genus Penicillium. The match factors calculated from searching all the mass profiles stored in the database were used as a distance measure for grouping into taxa. Isolates from more than 75% of the taxa were placed correctly, that is with the highest match factors to other isolates of the their own species by library searches. The database was used as an expert system based on correct identification of the isolates stored according to classical taxonomic criteria. Mass profiles collected in previous studies could be identified by a search in the database. (C) 1997 Elsevier Science Ltd.
    Original languageEnglish
    JournalBiochemical Systematics and Ecology
    Volume25
    Pages (from-to)65-71
    ISSN0305-1978
    DOIs
    Publication statusPublished - 1997

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