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  • Articles  (5)
  • Bacteria
  • Dissolved organic carbon
  • Springer  (5)
  • American Chemical Society
  • Inter-Research
  • Molecular Diversity Preservation International
  • Medicine  (5)
  • 1
    Electronic Resource
    Electronic Resource
    Calcium binding by a lipid extract ofBacterionema matruchotii (1968)
    Springer
    Calcified tissue international 2 (1968), S. 296-298 
    Details
    ISSN: 1432-0827
    Keywords: Calcium ; Lipid ; Bacteria ; Calcification
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Description / Table of Contents: Résumé On a fait ce travail pour determiner si le facteur responsable pour la liaison de calcium par un calcifableBacterionema matruchotii est dans la fraction lipide de la cellule. Des cellules congelees et sechees ont ete extraites par le chloroform-methanol. La fraction de chloroform-methanol, les cellules extraites et les cellules non traitees ont ete examinees pour la liaison de calcium. La fraction du chloroform-methanol et les cellules non traitees avaient la liaison de calcium. Les cellules extraites n'en avaient pas.
    Abstract: Zusammenfassung Diese Arbeit wurde durchgeführt um festzustellen, ob sich der Faktor für die Calcium-bindung, durch das calcifizierendeBacterionema matruchotii, in der Lipoidfraktion befindet. Die lyophiilisierten Zellen wurden mit Chloroform-Methanol extrahiert. Die Chloroform-Methanol-Fraktion, die extrahierten Zellen, sowie die nicht behandelten Zellen wurden auf eine Calciumbindung hin untersucht. Die Chloroform-Methanol-Fraktion und die nicht behandelten Zellen demonstrierten eine Calciumbindung. Die extrahierten Zellen hingegen nicht.
    Notes: Abstract This work was done to determine whether the factor responsible for calcium binding by a calcifiableBacterionema matruchotii is in the lipid fraction of the cell. Freeze-dried cells were extracted with chloroform-methanol. The chloroform-methanol fraction, the extracted cells and untreated cells were examined for calcium binding. The chloroform-methanol fraction and the untreated cells bound calcium. The extracted cells did not.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02279217
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  • 2
    Electronic Resource
    Electronic Resource
    Survey of mycotic and bacterial keratitis in Sri Lanka (1994)
    Springer
    Mycopathologia 127 (1994), S. 77-81 
    Details
    ISSN: 1573-0832
    Keywords: Bacteria ; Drug sensitivity ; Fungi ; Keratitis ; Paecilomyces farinosus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Over a two-year period (1976–1977 and 1980–1981), 66 cases of bacterial and mycotic cases of keratitis were diagnosed in the Eye Clinic of the General Hospital in Kandy, Sri Lanka. The clinical and microbiologic aspects of these cases are described. Noteworthy was the first known human case caused byPaecilomyces farinosus, a geophilic species, commonly encountered as an insect parasite throughout the world. The bacterial and the other fungal etiologic agents isolated and identified were:Pseudomonas aeruginosa, Streptococcus pneumoniae, Aspergillus flavus, A. niger, Fusarium oxysporum, andLasiodiplodia theobromae. In vitro the fungi showed sensitivity in decreasing order to fluctytosine, nystatin, amphotericin B and econazole. Due to the out-patient status of the patients, their in-vivo response to treatment was not assessable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01103062
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  • 3
    Electronic Resource
    Electronic Resource
    Studies on the fine structure of the protozoan Cyclidium, with special reference to the mitochondria, pellicle and surface-associated bacteria (1973)
    Springer
    Cell & tissue research 139 (1973), S. 303-310 
    Details
    ISSN: 1432-0878
    Keywords: Protozoa ; Bacteria ; Association ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The ultrastructure of Cyclidium, including the cilia, kinetosomes, pellicle, microtubules and kinetodesmal fibers is similar to that recorded for other ciliates. Of special interest is the attachment of rod-shaped bacteria within the longitudinally directed shallow surface folds of the protozoan. Both the bacteria and the surface of Cyclidium seem to possess an outer coating of a sticky substance which upon contact holds the bacteria to the protozoan. The bacteria appear to be attached by only a relatively small area of their surfaces. A dense substance appears within the alveolus of the pellicle at the regions of the attachment of the bacteria. The association of the organisms is probably a temporary one, and it is unknown whether either organism is benefited or harmed by the association. The position of the mitochondria in Cyclidium is unusual in that they all lie flattened against the inner membrane of the pellicle, usually in a position directly opposite to that of the attachment of the bacteria to the surface, thus being separated from the bacteria by only the outer cell membrane and the pellicle. Whether or not this close topographical relationship is of significance is unknown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00306587
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  • 4
    Electronic Resource
    Electronic Resource
    Ultrastructure of the enlarged cecum in germfree rats (1971)
    Springer
    Cell & tissue research 120 (1971), S. 555-578 
    Details
    ISSN: 1432-0878
    Keywords: Cecum ; Germfree ; Bacteria ; Symbiosis ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The cecum of germfree rats, as studied by light microscopy and scanning and transmission electron microscopy, differs in many respects from the cecum of conventional rats. Epithelial cells in germfree rats are taller and have larger nuclei and longer microvilli than similar cells in conventional rats. The cecal mucosa of germfree rats shows a larger variability in the arrangement of the crypts of Lieberkühn than does the mucosa of conventional rats. Some crypts are funnel-shaped and connected close to the mucosal surface with adjacent similar crypts to form long valleys. Less wide crypts open on elevated regions of the mucosal surface. The lamina propria of germfree animals is devoid of plasma cells but rich in mast cells. Germfree animals show hypertrophy of the tunica muscularis externa. In conventional rats the cecal lumen contains a large variety of morphologically different bacteria. However, the lumen of the crypts of Lieberkühn contains only one type of elongated bacteria, which are present in large amounts. This finding suggests that symbiotic relations may be of particular importance in the crypts of Lieberkühn in the cecum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00340589
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  • 5
    Electronic Resource
    Electronic Resource
    Role of the furrow of the proximal colon in the production of soft and hard feces in nutrias, Myocastor coypus (2000)
    Springer
    Journal of comparative physiology 170 (2000), S. 531-535 
    Details
    ISSN: 1432-136X
    Keywords: Key words Large intestine ; Furrow of proximal colon ; Digesta ; Bacteria ; Soft and hard feces ; Nutrias ; Myocastor coypus ; AbbreviationsN nitrogen ; TAA total amino acids ; DAP diaminopimelic acid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The bacterial level of soft feces is higher than that of hard feces in nutrias. This suggests the heterogeneity of bacterial density in the large intestine. To show the heterogeneity of bacteria in the contents of the large intestine in nutrias, we divided the contents of the large intestine into 12 regions, then measured the nitrogen (N), total amino acids (TAA) and diaminopimelic acid (DAP), a bacterial marker, of these regions. Levels of N, TAA and DAP varied along the cross section of the proximal colon. The greater curvature of the main lumen and furrow had higher N, TAA and DAP concentrations than the lesser curvature. We also examined the involvement of the furrow in producing two types of feces differing in bacterial nitrogen content by surgically preventing the flow of the furrow contents. We compared the concentrations of N, TAA and DAP between soft and hard feces among operated, sham-operated and intact animals. Surgical closure of the furrow abolished the difference in levels of N, TAA and DAP between soft and hard feces, suggesting that the furrow of the proximal colon is responsible for making the bacterial density higher in soft feces than in hard feces.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003600000131
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