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  • 1980-1984  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Unusual nutrition of the “Pompeii worm” Alvinella pompejana (polychaetous annelid) from a hydrothermal vent environment: SEM, TEM, 13C and 15N evidence (1983)
    Springer
    Marine biology 75 (1983), S. 201-205 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Morphological and histological studies of Alvinella pompejana (a polychaete living in the vicinity of hydrothermal vents of the East Pacific Ocean) were performed using light, scanning and transmission electron microscopy. The worms were collected in April–May 1979, during the “Rise” cruise by the submersible “Alvin” on the crest of East Pacific Rise at 21°N. The digestive tracts contained many sulfide particles (as determined by microprobe analysis) associated with organic matter and bacteria. Bacterial communities of different morphological types (cocci and filaments) were also observed at different levels of the worm's outer teguments. An atypical (possibly bacteria-derived) nutritional source of carbon and nitrogen for A. pompejana is indicated by the natural abundances of 13C:12C and 15N:14N in its tissues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00406003
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Natural killer cell activity in fawn-hooded rats (1983)
    Springer
    Cellular and molecular life sciences 39 (1983), S. 308-310 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Fawn-hooded (FH) rats were shown to lack the genetically conditioned defect of natural killer (NK) activity hypothesized to be present by analogy with the Chediak-Higashi syndrome (CHS) in mice and human beings. In 4-h51Cr release assays, splenic NK cells from FH rats killed YAC-1, RL♂ 1 and G1-TC tumor targets without deficiency based upon comparison with cells from BD-IV, BD-IX and NBR inbred rat strains. Progeny of BD×FH F1 rats backcrossed to FH failed to reveal a correlation of reduced NK activity and dilute coat color. From these, and other data presented, it is concluded that despite similarities in coat color dilution and platelet storage pool deficiency, FH rats do not closely resemble CHS mice or human beings in having deficient NK activity and cannot be considered the rat homolog of the CHS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01955321
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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