Enhancement of senescence by far-red light.
Far-red light was demonstrated to accelerate senescence in mature, green tissue of intact thalli of Marchantia polymorpha. The red/far-red reversibility of this phenomenon proves the involvement of phytochrome. As a daily exposure to 5 min red light is sufficient to prevent aging of the tissue, photosynthesis does not play a specific role in this response.
Laboratory of General Botany, R.U.C.A., Antwerpen, Belgium.
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JA
De Greef
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Fredericq