Bacterial biota in the human distal esophagus

Zhiheng Pei; Edmund J. Bini; Liying Yang; Meisheng Zhou; Fritz Francois; Martin J. Blaser

doi:10.1073/pnas.0306398101

Fig. 1.

An external file that holds a picture, illustration, etc.
Object name is zpq0110442130001.jpg

Microscopic examination of bacterial cells in the esophagus. Esophageal biopsies were fixed in formalin, paraffin-embedded, sectioned, and examined by using Gram-Twort stain. In the biopsy from subject A, monomorphic Gram-negative bacilli were tightly associated with the surface of squamous epithelial cells (×1,000).