Gut Microorganisms
Mostrando 13-24 de 43 artigos, teses e dissertações.
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13. Efeitos da ingestÃo de Zymomonas mobilis em ratos Wistar
Due to the increaase need of health life, new no-pharmacologic alternatives is growing up aiming the prevention of diseases and to benefit health in the World. In this way greater emphasis, had been done to obtain new microorganisms with probiotic attributes, which in Zymomonas mobilis may be regarding his antagonic capacity against pathogenic microorganisms
Publicado em: 2004
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14. N2O-Producing Microorganisms in the Gut of the Earthworm Aporrectodea caliginosa Are Indicative of Ingested Soil Bacteria
The main objectives of this study were (i) to determine if gut wall-associated microorganisms are responsible for the capacity of earthworms to emit nitrous oxide (N2O) and (ii) to characterize the N2O-producing bacteria of the earthworm gut. The production of N2O in the gut of garden soil earthworms (Aporrectodea caliginosa) was mostly associated with the g
American Society for Microbiology.
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15. Hindgut Fermentation in Three Species of Marine Herbivorous Fish
Symbioses with gut microorganisms provides a means by which terrestrial herbivores are able to obtain energy. These microorganisms ferment cell wall materials of plants to short-chain fatty acids (SCFA), which are then absorbed and used by the host animal. Many marine herbivorous fishes contain SCFA (predominantly acetate) in their hindgut, indicative of gut
American Society for Microbiology.
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16. Bacteria Associated with the Surface and Gut of Marine Copepods
Little is known about the nature of bacteria associated with the surface and gut of marine copepods, either in laboratory-reared animals or in the natural environment. Nor is it known whether such animals possess a gut flora. The present report deals with studies of microorganisms isolated from healthy, laboratory-reared copepods of the species Acartia tonsa
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17. The Gut of the Soil Microarthropod Folsomia candida (Collembola) Is a Frequently Changeable but Selective Habitat and a Vector for Microorganisms
Interaction potentials between soil microarthropods and microorganisms were investigated with Folsomia candida (Insecta, Collembola) in microcosm laboratory experiments. Microscopic analysis revealed that the volumes of the simple, rod-shaped guts of adult specimens varied with their feeding activity, from 0.7 to 11.2 nl. A dense layer of bacterial cells, as
American Society for Microbiology.
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18. Influence of immunoglobulin and interleukin 2 on the translocation of microorganisms from gut into blood.
The aim of this study was to influence the translocation of microorganisms and endotoxin from the gut of septic rats by the intravenous (i.v.) administration of immunoglobulin and interleukin 2. Acute infection was induced in all animals by an intraperitoneal bacterial challenge of 2 x 10(6) microorganisms (Ps. aeruginosa, E. coli, Kleb. pneumoniae). Immedia
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19. Isolation of Plasmid-Harboring Serratia plymuthica from Facultative Gut Microflora of the Tobacco Hornworm, Manduca sexta
Aseptic isolation of the facultative gut microflora of the tobacco hornworm, Manduca sexta, yielded four microorganisms. Two were gram-positive Bacillus spp., one was Serratia plymuthica, and another was the yeast Candida guilliermondii. The three bacterial species were screened for extrachromosomal DNA, and S. plymuthica was found to have a 6.4-kilobase pla
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20. Effects of probiotics and commensals on intestinal epithelial physiology: implications for nutrient handling
Eukaryotes and prokaryotes have developed mutually beneficial relationships over millennia of evolutionary adaptation. Bacteria in our gut rely on our diet and the protected environment of our bodies just as our health depends on byproducts of microbial metabolism. Microorganisms of the gut microbiota ferment carbohydrates into short-chain fatty acids, conve
Blackwell Science Inc.
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21. Use of norfloxacin to study colonization ability of Escherichia coli in in vivo and in vitro models of the porcine gut.
The colonization resistance conveyed by the intestinal microbiota can prevent colonization of the intestinal system by new strains. In this study, this resistance was partly circumvented by use of the antimicrobial drug norfloxacin. The colonization abilities of two closely related Escherichia coli strains, which were resistant to nalidixic acid and rifampin
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22. The Earthworm Gut: an Ideal Habitat for Ingested N2O-Producing Microorganisms
The in vivo production of nitrous oxide (N2O) by earthworms is due to their gut microbiota, and it is hypothesized that the microenvironment of the gut activates ingested N2O-producing soil bacteria. In situ measurement of N2O and O2 with microsensors demonstrated that the earthworm gut is anoxic and the site of N2O production. The gut had a pH of 6.9 and an
American Society for Microbiology.
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23. Lack of antibody response to invasin in humans with yersiniosis.
The Yersinia pseudotuberculosis inv gene encodes invasin, a 103-kDa outer membrane protein allowing bacteria to penetrate mammalian cells. This protein is produced in vitro at below 30 degrees C. In this work, we studied the antibody response against invasin in humans suffering from yersiniosis and in mice orally infected with a virulent strain of Y. pseudot
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24. Growth and Invasiveness of Candida albicans in the Germ-Free and Conventional Mouse After Oral Challenge
Candida albicans was established in large numbers throughout the gut after one oral challenge in the germ-free and in the conventional mouse. Of the strains tested, only the germ-free ND 1 mouse appeared to be susceptible to infection, and this was confined to the stomach mucosa; lesions contained large numbers of hyphal and mycelial forms with blastospores.