Molecular and phenotypic description of Stachybotrys chlorohalonata sp. nov and two chemotypes of Stachybotrys chartarum found in water-damaged buildings

Birgitte Andersen, Kristian Fog Nielsen, Ulf Thrane, T. Szaro, J.W. Taylor, B.B. Jarvis

    Research output: Contribution to journalJournal articleResearchpeer-review


    Twenty-five Stachybotrys isolates from two previous studies have been examined and compared, rising morphological, chemical and phylogenetic methods. The results show that S. chartarum sensu lato can be segregated into two chemotypes and one new species. The new species, S. chlorohalonata, differs morphologically from S. chartarum by having smooth conidia, being more restricted in growth and producing a green extracellular pigment on the medium CYA. S. chlorohalonata and S. chartarum also have different tri5, chs1 and tub1 gene fragment sequences. The two chemotypes of S. chartarum, chemotype S and chemotype A, have similar morphology but differ in production of metabolites. Chemotype S produces macrocyclic trichothecenes, satratoxins and roridins, while chemotype A produces atranones and dolabellanes. There is no difference between the two chemotypes in the tub1 gene fragment, but there is a one nucleotide difference in each of the tri5 and the chs1 gene fragments.
    Original languageEnglish
    Issue number6
    Pages (from-to)1227-1238
    Publication statusPublished - 2003

    Cite this