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  • Title: Ultrastructure of protoplasts from mycelium and microconidia of Trichophyton mentagrophytes.
    Author: Scott EM, Gorman SP, Wright LR.
    Journal: Sabouraudia; 1985 Feb; 23(1):31-6. PubMed ID: 3887601.
    Abstract:
    Protoplast formation from mycelium and microconidia of Trichophyton mentagrophytes was achieved with Novozym 234. Pretreatment procedures with dithiothreitol or urea mercaptoethanol sodium lauryl sulphate before digestion with Novozym 234 greatly reduced protoplast yield from mycelium. Snail gut enzyme did not protoplasts in good yield. Scanning electron microscopy of mycelium protoplasts showed the acquired spherical shape. The plasma membrane appeared finely granular although remnants of cell wall could sometimes be observed. Transmission electron microscopy showed the cell interior of these protoplasts was plasmolysed. Microconidia treated with Novozym 234 displayed a range of cell wall digestion, with intact protoplasts showing distinct cytoplasmic organelles.
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