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TEM on spore section of strain ATCC 9714. A transverse spore section is presented. Panel A is a magnified view of the left side of panel B. Panel C is a magnified view of the right side of panel B. Panel B shows the complete spore section. IEx, inner exosporial layer; OEx, outer exosporial layer; Ex, exosporium; IM, inner membrane; GCW, germ cell wall; Cx, cortex; OC, outer coat; IC, inner coat; UC, undercoat. A single layer each of IEx and OEx makes up the Ex. Bars, 0.1 µm.
