Why was Desulfovibrio fairfieldensis not found in faecal DNA from patients with gastric disease?

We recently compared the diversity and approximate abundance of sulphate reducing bacteria in faeces from gastric disease patients with those from a healthy control group (Jia et al., 2012). Major conclusions from that study included that relatively few species of sulphate reducing bacteria are associated with human faeces, and that there was no correlation between the species detected and the disease state: Crohn's disease; ulcerative colitis; or irritable bowel syndrome. However, as noted by one anonymous reviewer, a surprising result was our failure to detect widespread occurrence of Desulfovibrio fairfieldensis, a species that has previously been proposed to be associated with gastric disease (Loubinoux et al., 2002). © 2013 Federation of European Microbiological Societies. Published by Blackwell Publishing Ltd. All rights reserved
Source: FEMS Immunology and Medical Microbiology - Category: Microbiology Authors: Tags: Letter Source Type: research