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Bacterial diversity in agroecosystems
Agriculture, Ecosystems & Environment, 1999All life forms rely on bacterial processes for their survival. Bacterial diversity is greater than the diversity of any other group of organisms. Bacteria are responsible for diverse metabolic functions that affect soil and plant health. Nutrient cycling, organic matter formation and decomposition, soil structure formation, and plant growth promotion ...
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Tryptophanase in Diverse Bacterial Species
Journal of Bacteriology, 1969The distribution of tryptophanase was studied. The highest observed specific activity, μmoles per minute per milligram (dry weight) cells, is given in parentheses after each species. Tryptophanase was inducible and repressible in Escherichia coli (.914), Paracolobactrum coliforme (.210),
K. Moser, R. D. DeMoss
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Bacterial diversity in aphthous ulcers
Oral Microbiology and Immunology, 2007Introduction: Recurrent aphthous ulcers are common lesions of the oral mucosa of which the etiology is unknown. This study aimed to estimate the bacterial diversity in the lesions and in control mucosa in pooled samples using a culture‐independent molecular approach.Methods: Samples were collected from ten healthy individuals and ten individuals with
Leonardo Marchini +4 more
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Bacterial Diversity and Systematics
1994The proceedings of a symposium held under the auspices of the Federation of European Microbiological Societies, September 1993, in Granada, Spain, devoted to microbial identification. Such a topic could not be addressed without some reference to the enabling discipline of classification, but the ...
Alberto Ramos-Cormenzana +2 more
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Bacterial Diversity in Freshwater
2017The tree of life, describing the evolutionary relationships among organisms, is totally dominated by bacteria. In a regular ecology textbook, the number of bacterial and Archaeal examples are, however, few. Microorganisms are in many respects understudied, and we do not yet know if they follow similar “rules” as other organisms: for instance, regarding
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Bacterial Diversity in the Human Gut
2004Publisher Summary The human digestive tract is colonized by highly complex microbial ecosystem containing vast numbers of bacteria that could be assigned to several hundred bacterial species. Bacterial colonization of the gut is affected by a wide variety of host, microbiological, environmental and dietary factors, as indicated in the chapter.
George T. Macfarlane, Sandra Macfarlane
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A mouthful of bacterial diversity
Trends in Microbiology, 2000Extensive analyses of the bacterial flora living in our mouths have been carried out, primarily by cultivation in laboratory media. Using direct PCR amplification of 16s rDNA sequences present in tooth plaque, Relman and co-workers have now shown that many more bacterial species are present in this environment than was previously thought1xBacterial ...
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Ecology, 2016
Bacteria are essential for many ecosystem services but our understanding of factors controlling their functioning is incomplete. While biodiversity has been identified as an important driver of ecosystem processes in macrobiotic communities, we know much
F. Roger +4 more
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Bacteria are essential for many ecosystem services but our understanding of factors controlling their functioning is incomplete. While biodiversity has been identified as an important driver of ecosystem processes in macrobiotic communities, we know much
F. Roger +4 more
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Bacterial Diversity in Polar Habitats [PDF]
, 2014 This chapter talks about the development of culture-independent, molecular methods that have revolutionized the field and the understanding of molecular ecology. Through the use of these techniques, it is now apparent that the earlier culture-based studies were not a representative reflection of the dominant microorganisms in many psychrophilic ...
Don A. Cowan +3 more
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Extolling the diversity of bacterial endotoxins
Nature Immunology, 2001It is part of the immunologic lexicon that Toll receptors are integral parts of the innate immune response machinery. What ligands they bind, however, is only now beginning to be elucidated.
Douglas T. Golenbock, Matthew J. Fenton
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