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Phytochrome-mediated bud development in Pisum sativum

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Summary

Light-grown dwarf peas were disbudded except for a single lateral bud, then transferred to darkness at 24° C. During the dark period the seedlings were irradiated daily for 5 or 7 min with R or FR. The buds exposed to R developed into shoots faster than those irradiated with FR. The R effect was FR reversible, and the FR effect was R reversible. The Pfr form of phytochrome thus promoted shoot growth including cell division, DNA and RNA synthesis.

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Abbreviations

R:

red

FR:

far-red

P:

phytochrome

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Authors and Affiliations

  1. Biology Department, Northeastern University, Boston

    A. K. Khudairi, A. T. Johnnykutty & S. Agarwal

Authors
  1. A. K. Khudairi
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  2. A. T. Johnnykutty
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  3. S. Agarwal
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Khudairi, A.K., Johnnykutty, A.T. & Agarwal, S. Phytochrome-mediated bud development in Pisum sativum . Planta 101, 185–188 (1971). https://doi.org/10.1007/BF00387631

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  • DOI: https://doi.org/10.1007/BF00387631

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