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[Fecal flora of man. V. communication: The fluctuation of the fecal flora of the healthy adult (author's transl)]. 1977

T Mitsuoka, and K Ono

Seven fecal specimens from each of healthy persons, aged 25 to 42 years, during the period of 2 months were analyzed to obtain the knowledge on the day-to-day variation in the same person and the person-to-person variation. Irrespective of individuals, bacteroidaceae, catenabacteria (eubacteria and strict anaerobic lactobacilli), peptostreptococci (anaerobic gram positive cocci) and bifidobacteria constituted the predominant flora. Spirillaceae, megasphaerae and clostridia (except Cl. perfringens) were also found as predominant flora in specific individuals. In all cases, enterobacteria and streptococci constitute the accompanying flora. In addition, veillonallae and lactobacilli were found as predominant flora in most cases. The remaining flora, consisting of Cl. perfringens, staphylococci and yeast, occurred occasionally in low numbers. With regard to the composition of the fecal flora of each person, a great individual variation was recognized and confirmed statistically. Each person had a characteristic fecal flora. In the same person, the numbers of bacteria of the predominating flora were over a 2 months period relatively constant. On the other hand, a great day-to-day variation in the numbers of bacteria of the accompanying flora as well as the remaining flora was demonstrated.

UI MeSH Term Description Entries
D007778 Lactobacillus A genus of gram-positive, microaerophilic, rod-shaped bacteria occurring widely in nature. Its species are also part of the many normal flora of the mouth, intestinal tract, and vagina of many mammals, including humans. Lactobacillus species are homofermentative and ferment a broad spectrum of carbohydrates often host-adapted but do not ferment PENTOSES. Most members were previously assigned to the Lactobacillus delbrueckii group. Pathogenicity from this genus is rare.
D008297 Male Males
D010462 Peptostreptococcus A genus of gram-positive, anaerobic, coccoid bacteria that is part of the normal flora of humans. Its organisms are opportunistic pathogens causing bacteremias and soft tissue infections.
D003013 Clostridium A genus of motile or nonmotile gram-positive bacteria of the family Clostridiaceae. Many species have been identified with some being pathogenic. They occur in water, soil, and in the intestinal tract of humans and lower animals.
D003016 Clostridium perfringens The most common etiologic agent of GAS GANGRENE. It is differentiable into several distinct types based on the distribution of twelve different toxins. Clostridium welchii
D004755 Enterobacteriaceae A family of gram-negative, facultatively anaerobic, rod-shaped bacteria that do not form endospores. Its organisms are distributed worldwide with some being saprophytes and others being plant and animal parasites. Many species are of considerable economic importance due to their pathogenic effects on agriculture and livestock. Coliform Bacilli,Enterobacteria,Ewingella,Leclercia,Paracolobactrum,Sodalis
D005051 Eubacterium A genus of gram-positive, rod-shaped bacteria found in cavities of man and animals, animal and plant products, infections of soft tissue, and soil. Some species may be pathogenic. No endospores are produced. The genus Eubacterium should not be confused with EUBACTERIA, one of the three domains of life. Butyribacterium
D005243 Feces Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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