The effects of space flight factors on lettuce seeds aboard the Kosmos-936 and Kosmos-1129 satellites for 20 days were studied. The phytochrome dependent (PD) reaction of light sensitive seeds was a sensitive criterion for evaluating the biological effects of space flight factors. The PD reaction of air dry lettuce seeds was suppressed after space flight, especially if the seeds were exposed to open space during the flight. Space flight affects the physiological activity of both phytochrome forms, and both the phi sub 730 dependent reactions of lettuce seeds were suppressed.


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    Titel :

    Use of Phytochrome-Dependent Reaction in Evaluating the Effect of Space Flight Factors on the Plant Organism


    Beteiligte:
    B. A. Shteyne (Autor:in) / L. V. Nevzgodina (Autor:in) / A. T. Miller (Autor:in)

    Erscheinungsdatum :

    1982


    Format / Umfang :

    11 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch