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  1. Chromatium Adenii ('Thiorhodaceae’): Bio-Convection Aero and Phototactic Behaviour (1966 Film)

    Director
    N Pfennig
    Subject
    Biology
    Distribution
    Film (16mm)

    Shows the effects of convection currents on suspended ‘Chromatium’ bacilli; also the effects of air (which repels) and light (which attracts) these motile organisms. Made from material shot in 1965. An...

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  2. Chromatium Okenii ('Thiorhodaceae’): Flagella Movement (1966 Film)

    Director
    N Pfennig
    Subject
    Biology
    Distribution
    Film (16mm)

    Shows movement of flagella in ‘Chromatium okenii’ through slow motion cinematography. The different effect of flagella movement is demonstrated as ‘push’ and ‘pull’ movement. It shows that the...

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  3. Thiospirillum Jenense ('Thiorhodaceae’): Locomotion and Phototactic Behaviour (1964 Film)

    Director
    N Pfennig
    Subject
    Biology
    Distribution
    Film (16mm)

    Shows in detail the locomotion of these curious motile bacilli, also the remarkably specific phototropic effects in certain parts of the spectrum. Made from material shot in 1963. An Encyclopaedia...

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