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  • 1985-1989  (2)
  • 1960-1964  (2)
Document type
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    The Center for Culture of Marine Phytoplankton: History, Structure, Function, and Future (1988)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 35 (1988), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1988.tb04338.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A Mutant of Chlamydomonas moewusii lacking contractile vacuoles (1960)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 7 (1960), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: An X-ray induced mutant (S-16) of Chlamydomonas moewusii Gerloff lacked observable contractile vacuoles. Unlike the wild strain with vacuoles, S-16 survived only when the osmotic pressure of the medium was above 1.5 atmospheres and was provided by compounds that penetrate cell membranes slowly, like NaCl or sucrose. In solutions of such compounds, when the osmotic pressure was above 2.1 atmospheres, growth of S-16 was similar to that of the wild strain. S-16 did not grow at all in isosmotic solutions of ethylene glycol cr other rapidly penetrating compounds. Urea and glycerol, which penetrate only moderately rapidly, allowed an intermediate growth. Thus, S-16 cells are dependent upon the prevention of net inward diffusion of water.Contractile vacuoles of the wild strain were not seen when cells were suspended in solutions that allowed growth of S-16. but were visible in isosmotic solutions cf ethylene glycol or ethanol. S-16 cells ultimately burst in solutions of low osmotic pressure; large vacuole-like areas were formed but did not contract.The pulsation rate of vacuoles of the wild strain was relatively independent of osmetic pressure; vacuoles became smaller and finally invisible at higher osmotic pressures.It is concluded that the sole essential function of contractile vacuoles in C. moewusii is elimination of water.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1960.tb00740.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Low Molecular Weight Organic Base from the Dinoflagellate Amphidinium carteri (1960)
    [s.l.] : Nature Publishing Group
    Nature 185 (1960), S. 689-690 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The substance responsible for the blue reaction, and presumably also for the fishy odour, is very labile. The product originally released into the medium by this organism is somewhat more complex than the dialysable substance responsible for the blue reaction, since samples of filtered medium taken ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/185689a0
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Light quality and oceanic ultraphytoplankters (1986)
    [s.l.] : Nature Publishing Group
    Nature 319 (1986), S. 142-143 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We compared the performances in culture of oceanic clones of Synechococcus and eukaryotic algae from different classes in conditions of nutrient abundance but variable light intensity and quality. We also compared attenuation spectra and fluorescence emission spectra. All eukaryotic ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/319142a0
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    Paper (German National Licenses)
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