Koopman J P, Stadhouders A M, Kennis H M, De Boer H
Lab Anim. 1987 Jan;21(1):48-52. doi: 10.1258/002367787780740743.
Scanning electron micrographs are presented of the ileal epithelium of mice aged 5, 15, 20 and 25 days. During this period the villous pattern develops to full maturity. By the twentieth day of life a segmented filamentous micro-organism colonizes the ileal epithelium and is firmly attached via a small segment. During the first days of colonization the segmented filamentous micro-organisms themselves are subcolonized by small rod-shaped bacteria, presumably lactobacilli. At the age of 25 days this subcolonization was no longer observed.
展示了5日龄、15日龄、20日龄和25日龄小鼠回肠上皮的扫描电子显微镜图像。在此期间，绒毛模式发展至完全成熟。到出生后第20天，一种分节丝状微生物定殖于回肠上皮，并通过一小段牢固附着。在定殖的最初几天，分节丝状微生物自身被小杆状细菌（推测为乳酸杆菌）再次定殖。在25日龄时，不再观察到这种再次定殖现象。
