title: Light and scanning electron microscopy of the cardiac gland region of the stomach of the babirusa (Babyrousa babyrussa--Suidae, Mammalia).
abstract: Previous studies have indicated that the gross anatomical structure of the stomach of the babirusa (Babyrousa babyrussa) differs markedly from that of all other pigs. This light and scanning electron microscopic study revealed a previously unknown, microscopic structure characterised by a 'honeycomb' pattern at the luminal surface of the tunica mucosa. The walls of the 'honeycomb' were about 0.20-0.25 mm high and appeared almost entirely composed of various types of bacteria. Underneath the bacteria the walls were formed by thin tubes composed of non-glandular squamous epithelial-like cells, extending from the tops of the ridges between each glandular pit. There is as yet no evidence of a comparable structure in the stomach of any other pig, or to our knowledge any other forestomach-fermenting mammal.
authors.affiliation: Centre for Research and Conservation, Royal Zoological Society of Antwerp, Koningin Astridplein 26, 2018 Antwerp, Belgium. kristin.leus@zooantwerpen.be
authors.forename: Kristin
authors.initials: K
authors.lastname: Leus
authors.forename: Alastair A
authors.initials: AA
authors.lastname: Macdonald
authors.forename: Gordon
authors.initials: G
authors.lastname: Goodall
authors.forename: David
authors.initials: D
authors.lastname: Veitch
authors.forename: Steven
authors.initials: S
authors.lastname: Mitchell
authors.forename: Luc
authors.initials: L
authors.lastname: Bauwens
mesh_terms: D000818:Animals; D015373:Bacterial Typing Techniques; D002299:Cardia / Q000033:anatomy & histology* / Q000382:microbiology; D004847:Epithelial Cells / Q000648:ultrastructure; D005260:Female; D005753:Gastric Mucosa / Q000648:ultrastructure*; D006090:Gram-Negative Bacteria / Q000302:isolation & purification / Q000648:ultrastructure; D006094:Gram-Positive Bacteria / Q000302:isolation & purification / Q000648:ultrastructure; D008297:Male; D008855:Microscopy, Electron, Scanning; D013045:Species Specificity; D013552:Swine / Q000033:anatomy & histology* / Q000382:microbiology