Microbial diversity in gut ecosystems
نویسندگان
چکیده
منابع مشابه
Molecular microbial ecology in gut ecosystems
The microbial community inhabiting the gastrointestinal tract is represented by all major groups of microbes and is characterized by high population density, wide diversity and complexity of interactions. Resident microbial populations have been described as herbivores, omnivores, carnivores, and in a wide range of zoological classes where they contribute to the nutrition, physiology, immunolog...
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Despite the importance of microbial communities for ecosystem services and human welfare, the relationship between microbial diversity and multiple ecosystem functions and services (that is, multifunctionality) at the global scale has yet to be evaluated. Here we use two independent, large-scale databases with contrasting geographic coverage (from 78 global drylands and from 179 locations acros...
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Microbial ecosystems are remarkably diverse, stable, and often consist of a balanced mixture of core and peripheral species. Here we propose a conceptual model exhibiting all these emergent properties in quantitative agreement with real ecosystem data, specifically species abundance and prevalence distributions. Resource competition and metabolic commensalism drive stochastic ecosystem assembly...
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BACKGROUND Smoking has a negative impact on Crohn's disease (CD), but the mechanisms underlying this association are unclear. We compared the gut microbiota composition of smoking with nonsmoking patients with CD using a metagenomic approach. METHODS Stool samples and clinical data were collected from current smokers and nonsmokers with CD from France and the Netherlands, matched for country,...
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ژورنال
عنوان ژورنال: Reproduction Nutrition Development
سال: 1997
ISSN: 0926-5287
DOI: 10.1051/rnd:19970705