title: Ultrastructure of the granulopoietic microenvironment in the tunica propria of the bursa of Fabricius of white Leghorn chicken embryo.
abstract: Granulopoietic areas of tunica propria of chicken embryo bursa (stage 38 to 45 H-H) were composed of fibroblasts, reticular cells with and without lipid droplets and macrophages within a network of collagen fibers. We suggest that the reticular cells with lipid droplets could have the same microenvironmental significance as adipocytes of other granulopoietic organs.
mesh_terms: D000818:Animals; D002060:Bursa of Fabricius / Q000648:ultrastructure*; D002642:Chick Embryo; D005347:Fibroblasts / Q000648:ultrastructure; D006098:Granulocytes / Q000648:ultrastructure*; D006410:Hematopoiesis; D006412:Hematopoietic Stem Cells / Q000648:ultrastructure*; D008854:Microscopy, Electron