A first report on the microbial colonisation of the equine oesophagus

Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft
W MeyerJohannes Seeger

Abstract

Based on cryo-SEM, standard and high resolution TEM, glycoconjugate histochemistry, and microbiological differentiation, the present study demonstrates the colonisation of the epithelium of the equine oesophagus with microorganisms. As particularly apparent using cryo-SEM to illustrate natural conditions, the present microbiota were clearly dominated by bacteria, forming a one-layer system, as attached to and embedded in concentrated mannose/mannan substances covering the outer stratum corneal cells. Bacterial numbers ranged from 5600 to 7200 per mm(2) in the central part of the oesophagus, the number of fungi was less than 1% of the amount of bacteria. The compact stratum corneal cells showed numerous short protrusions sometimes as part of desmosomal contacts, but mainly projecting into distinct intercellular spaces, containing a mixture of acid and neutral glycoconjugates. The outermost corneal cells exhibited intact mitochondria and cytoplasmic vesicles, and a number of short cell processes toward the oesophageal lumen; i.e. into the glycoconjugate layers on the surface of the oesophagus. The diverse spectrum of bacteria found indicated a permanent mucosal flora, predominated by facultative and obligate anaerobic species. Th...Continue Reading

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Apr 11, 2007·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·Wilfried MeyerJohannes Seeger
Apr 27, 2007·International Journal of Medical Microbiology : IJMM·Michael LotzMathias Hornef
May 21, 2008·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·Wilfried MeyerAzuma Tsukise
Aug 30, 2008·Proceedings of the National Academy of Sciences of the United States of America·Michael J CoyneLaurie E Comstock
Nov 26, 2008·Gastroenterology·Andrew S Neish
Dec 17, 2008·FEMS Immunology and Medical Microbiology·Vinod SinghHariom Yadav
Dec 17, 2008·Mucosal Immunology·S K LindenM A McGuckin
Mar 11, 2009·Frontiers in Bioscience (Landmark Edition)·Marco VenturaDouwe van Sinderen

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Citations

Oct 27, 2016·Microbial Ecology·Dominika Drzewiecka
Aug 21, 2013·Acta histochemica·Wilfried MeyerAnke Schnapper
Apr 20, 2014·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Quinci D LaymanAnthony W Confer
Dec 17, 2014·Animal : an International Journal of Animal Bioscience·A G Goachet, V Julliand
Oct 16, 2012·Molecular Biology Reports·Benoit St-PierreRafat Al Jassim
Feb 11, 2021·American Journal of Primatology·Wanyi LeeGoro Hanya

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