Figure 1

Mitochondrial ultrastructure in bMECs. A1 and A2: Control group, with normal mitochondria and mitochondrial cristae in the bMECs. B1 and B2: P. ciferrii infection group; note the slight vacuolization in mitochondria in P. ciferrii-infected bMECs. C1 and C2: P. bovis infection group; note the mitochondrial cristae dissolution and large areas of vacuolation in bMECs.