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PHOTOCONTROL OF HYPOCOTYL ELONGATION IN DE‐ETIOLATED Cucumis sativus L. RAPID RESPONSES TO BLUE LIGHT
Year:
1983
Source of publication :
Photochemistry and Photobiology
Authors :
Gaba, Victor
;
.
Volume :
38
Co-Authors:
Gaba, V., Department of Biology, Queen Elizabeth College, University of London, Canipden Hill Road, London, W8 7AH, United Kingdom
Black, M., Department of Biology, Queen Elizabeth College, University of London, Canipden Hill Road, London, W8 7AH, United Kingdom
Facilitators :
From page:
469
To page:
472
(
Total pages:
4
)
Abstract:
Abstract— Rapid inhibition of hypocotyl extension of de‐etiolated Cucumis sativus L. by blue light is described, and compared with responses to white fluorescent light. Rapid inhibition of hypocotyl growth by blue light via the specific blue light photoreceptor requires a minimum Buence rate. Above this minimum value rapid modulations of growth rate accompany changes in blue light fluence rate. An initial response to blue light, or to a step‐up in blue fluence rate takes less than 5 min. A drop from high to low fluence rate blue light (or to darkness) is followed by a recovery of the growth rate after about 20 min. A change from a low fluence rate to darkness elicits a more rapid recovery of growth rate (within 7 min). Similar responses were obtained in seedlings de‐etiolated for a few hours and for several days. Copyright © 1983, Wiley Blackwell. All rights reserved
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DOI :
10.1111/j.1751-1097.1983.tb03368.x
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
27805
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:34
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Scientific Publication
PHOTOCONTROL OF HYPOCOTYL ELONGATION IN DE‐ETIOLATED Cucumis sativus L. RAPID RESPONSES TO BLUE LIGHT
38
Gaba, V., Department of Biology, Queen Elizabeth College, University of London, Canipden Hill Road, London, W8 7AH, United Kingdom
Black, M., Department of Biology, Queen Elizabeth College, University of London, Canipden Hill Road, London, W8 7AH, United Kingdom
PHOTOCONTROL OF HYPOCOTYL ELONGATION IN DE‐ETIOLATED Cucumis sativus L. RAPID RESPONSES TO BLUE LIGHT
Abstract— Rapid inhibition of hypocotyl extension of de‐etiolated Cucumis sativus L. by blue light is described, and compared with responses to white fluorescent light. Rapid inhibition of hypocotyl growth by blue light via the specific blue light photoreceptor requires a minimum Buence rate. Above this minimum value rapid modulations of growth rate accompany changes in blue light fluence rate. An initial response to blue light, or to a step‐up in blue fluence rate takes less than 5 min. A drop from high to low fluence rate blue light (or to darkness) is followed by a recovery of the growth rate after about 20 min. A change from a low fluence rate to darkness elicits a more rapid recovery of growth rate (within 7 min). Similar responses were obtained in seedlings de‐etiolated for a few hours and for several days. Copyright © 1983, Wiley Blackwell. All rights reserved
Scientific Publication
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