1988
DOI: 10.1099/00222615-25-4-253
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Nitrate- and nitrite-reducing bacteria in the achlorhydric stomach

Abstract: Summary. The microbial composition of samples of gastric juice from eight achlorhydric patients was determined by aerobic and rigorously anaerobic culture techniques. Bacteria from 16 genera were commonly isolated, but representatives of only three genera, (streptococci, neisseriae and haemophili) were isolated from every patient. Nitrate and nitrite were both reduced by veillonellae, haemophili, staphylococci, corynebacteria, lactobacilli, flavobacteria and fusobacteria, but the potential rate of nitrate redu… Show more

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Cited by 52 publications
(39 citation statements)
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“…Values comparable to those reported by Forsythe et al (1987) were obtained. No nitrate reductase activity was detected with suspensions of N. subflava or S.…”
Section: Rates Of Nitrate and Nitrite Reduction By Suspensions Of Indsupporting
confidence: 89%
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“…Values comparable to those reported by Forsythe et al (1987) were obtained. No nitrate reductase activity was detected with suspensions of N. subflava or S.…”
Section: Rates Of Nitrate and Nitrite Reduction By Suspensions Of Indsupporting
confidence: 89%
“…The rates of nitrite accumulation and removal were 640 and 580 U ml-l at a density of 4 x lo9 bacteria ml-l, 370 and 330 U ml-l with 2 x lo9 bacteria ml-l, 200 and 140 U ml-l with 1 x lo9 bacteria ml-l, and 120 and 100 U ml-l with 5 x lo8 bacteria ml-l. dry wt)-l for veillonellae. These values are again similar to those determined with pure culture suspensions (Forsythe et al, 1987). The slower rate of nitrite reduction by streptococci than by neisseriae was reflected in the times taken for nitrite to disappear from binary suspensions (Fig.…”
Section: Nitrite Accumulation During Nitrate Reduction By Binary Bactsupporting
confidence: 86%
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“…Highest activities were reported for denitrifying bacteria, but these organisms are rarely isolated from the gastro-intestinal tract, even when the p H of gastric juice is abnormally high due to achlorhydria (Forsythe et al, 1988). Consequently, despite their 10-fold lower catalytic activity, the far larger population of enteric bacteria can be predicted to contribute the majority of nitrosation activity in the human body.…”
Section: Introductionmentioning
confidence: 99%