Fig. 1
From: Bacterial accumulation in intestinal folds induced by physical and biological factors
Structural features of the anterior intestinal wall fold 7 days post-fertilization (dpf). a Larval zebrafish at 7 dpf. The intestine was highlighted for illustration by orally gavaging with Rhodamine B dye. The intestine was divided into three different segments: anterior, middle, and posterior. b Definition of the amplitude A, width W, and distance between the folds in the intestinal wall D. c Geometric features of the intestinal folds on the dorsal and ventral sides. A/W is the ratio of amplitude to width, and D/W is the ratio of distance to width. p values as determined by the Mann–Whitney–Wilcoxon test, and error bars indicate standard deviation (N = 6 fish)