Figure 4From: Heterologous expression and processing of the flavescence dorée phytoplasma variable membrane protein VmpA in Spiroplasma citri Immunogold labelling transmission electron microscopy of S. citri transformants. Labelling of pSTVA1 (vmpAs, A, B and D) and pSTVA5 (vmpAp, C) transformed spiroplasmas with anti-S. citri rabbit serum (A, positive control), anti-VmpA rabbit serum (B and C), and in the absence of primary antibodies (D, negative control). Scale bars, 250 nm (A–D) and 100 nm (insets).Back to article page