FIG. 2.

(A) TEM of thin sections of H. pylori cultured in broth for 2 days. Most of these cells were spiral and contained poly-P granules showing sublimation characteristics (arrow). The inset (magnified) shows part of a cell with an intact poly-P granule (small arrow) and crystalline iron (large arrow). (B) TEM of thin sections of H. pylori cultured in broth for 16 days. Three different morphological types are illustrated: a U form (large arrow), IC forms (arrowheads), and DC forms (small arrows). Bars, 1μm.