Title: INTERACTION BETWEEN PHYTOCHROME AND THE BLUE LIGHT PHOTORECEPTOR SYSTEM IN Mougeotia*
Abstract: Abstract— Face‐to‐profile chloroplast movement in Mougeotia was induced by sequences of strong blue and red short irradiations. This type of response occured only when blue light was applied prior to or simultaneously with red light, and far‐red irradiation was necessary after the sequence to cancel the remaining gradient of the far‐red absorbing form of phytochrome P fr . The dependence of the response magnitude on blue and red light sequences was studied for a wide range of light durations and dark intervals. The relationship between the response and the dark interval points to the lack of direct coupling between phytochrome and blue‐absorbing “cryptochrome”. It was postulated that a photoproduct having a life‐time of2–3 min is formed by the blue‐light‐mediated reaction. This photoproduct interacts with phytochrome during its transformation or with its final P fr form.
Publication Year: 1985
Publication Date: 1985-12-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 22
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