PHYTOCHROME DESTRUCTION IN DARK - AND LIGHT-GROWN AMARANTHUS CAUDATUS SEEDLINGS |
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| Authors: | Brigitte Heim Merten Jabben Eberhard Schäfer |
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| Institution: | Biological Institute II, University of Freiburg, D-7800 Freiburg, W. Germany |
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| Abstract: | Abstract— Slow destruction of the far-red-absorbing form of phytochrome (Pfr), which has been observed in light-grown oat and maize, occurs in light- and dark-grown Amaranthus, Pharbitis , and Brassica seedlings as well. Destruction of Pfr in these seedlings shows two phases: if a high level of Pfr is produced in dark-grown seedlings, the destruction is fast in the beginning and then slows after a low Pfr level has been reached. Slow Pfr destruction is predominant in light-grown tissue. |
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