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Effect of cell-free culture filtrate on membrane integrity of Bipolaris sorokiniana mycelium. (A) Fluorescence of mycelia stained with PI measured by revolve fluorescence microscopy (×20). (B) Ultraviolet scanning spectra of ergosterol content in the mycelium plasma membrane treated with cell-free culture filtrate. (C) Effects of cell-free culture filtrate on the electric conductivity of mycelium. Values are presented as mean ± SE (n = 3).
