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  • 1
    Electronic Resource
    Electronic Resource
    The Lipid Requirement of the Ciliated Protozoon Tetrahymena patula (1983)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 30 (1983), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: . The ciliated protozoon Tetrahymena patula can be grown in a chemically defined medium supplemented with a suitable lipid. High purity natural phosphoiipids; mono-, di-, and triglycerides: and free fatty acids are suitable lipids. The more complete lipids appear to serve simply as nutritionally convenient sources of fatty acids. T. patula can also be grown in the synthetic medium supplemented with cholesterol or other sterols in lieu of fatty acid containing lipids. Supplementation with either ethanolamine or choline permits suboptimal growth of the ciliate in a lipid-free synthetic medium. No other water soluble compound, of a variety that were tested, permitted growth of the ciliate in the lipid-free medium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1983.tb01025.x
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  • 2
    Electronic Resource
    Electronic Resource
    Isolation of a Stearoyl CoA Desaturase from Tetrahymena thermophila (1981)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 28 (1981), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Cell free preparations of Tetrahymena thermophila contain an enzyme that catalyzes the direct desaturation of stearoyl CoA to octadecenoic acid. The enzyme is associated with the microsomal fraction of the ciliate. Substrate for the enzyme consists of either free stearic acid or stearoyl CoA. Both ATP and CoA are required when free stearate is the substrate and are also highly stimulatory when stearoyl CoA is the substrate. With stearoyl CoA as the substrate, either NADH or NADPH are required for desaturase activity. In the presence of ATP and CoA, either NAD or NADP can replace NADH and NADPH. Desaturase activity is optimal when the enzyme is incubated at a pH of 7.2 and a temperature of 30–35°C. Highest levels of the stearoyl CoA desaturase are found in stationary phase ciliates grown at 35°C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1981.tb02818.x
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