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Micrographs of aphid thoraxes produced by scanning electron microscopy (A–C), transmission electron microscopy (D–F) and optical microscopy (G–I) of aphids treated only with TSB medium (A, D, and G), the L193 culture (B, E, and H) and the biosurfactant produced by L193 (C, F, and I). Arrows indicate aphid membranes.
