FIG 1 .

(A to G) TEM on negatively stained whole spores of C. sordellii strains ATCC 9714 (A), DA108 (B), JGS6382 (C), SSCC26591 (D), R28058 (E), W2922 (F), and W3026 (G). (H) Magnified view of exosporium showing hexagonal structural array. (I) Magnified view of spore appendages emerging through the exosporium for strain SSCC26591. Spores of all strains have a baggy exosporium (A to G); spores of some strains have tubular appendages (D to F). Ap, appendage; Ex, exosporium; IS, inner spore. Bars, 0.5 µm (A to G and I) and 0.1 µm (H).