Negative fungal chemotropism to toxic metals

Marina Fomina, Karl Ritz, Geoffrey M. Gadd (Lead / Corresponding author)

    Research output: Contribution to journalArticlepeer-review

    42 Citations (Scopus)

    Abstract

    Hyphal growth responses of Geotrichum candidum, Gliocladium roseum, Humicola grisea and Trichoderma viride to Cu and Cd were studied using a simple tessellated agar tile system. Negative chemotropic behaviour of hyphae, which included curling and growth away from metal-containing domains, occurred in all species and with both metals. Both toxic metal and sucrose concentrations in the medium modulated the magnitude of the negative chemotropic effects observed. In general, greater concentrations of metals led to a higher level of negative chemotropism in response to Cu and Cd, which could be reduced with increasing concentrations of sucrose in the medium. This suggests that resource availability affects the ability of these fungi to grow into metal-laden domains. Copyright (C) 2000 Federation of European Microbiological Societies.

    Original languageEnglish
    Pages (from-to)207-211
    Number of pages5
    JournalFEMS Microbiology Letters
    Volume193
    Issue number2
    DOIs
    Publication statusPublished - 1 Dec 2000

    Keywords

    • Cadmium
    • Copper
    • Fungal chemotropism
    • Hyphal growth response
    • Toxic metal

    ASJC Scopus subject areas

    • Microbiology
    • Molecular Biology
    • Genetics

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