Fig. 4. Co localization of Lycopersicon esculentum lectin and X-gal staining of engrafted type I pneumocytes. (A) Type I pneumocytes (arrows) lining an alveolus (Alv) stain blue indicating their origin from lacZ-expressing bone marrow cells. No X-gal staining was found in the adjacent type II cell (T2). (B) This same section after binding to L. esculentum lectin shows that the brown lectin staining co-localizes with the blue cells. The lectin staining stops abruptly at the junction of positively stained type I cells and the negatively stained type II cell. Bar, 7 µm.
