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Phytochrome regulation of pea phototropin


Elliott, RC and Platten, JD and Watson, JC and Reid, JB, Phytochrome regulation of pea phototropin, Journal of Plant Physiology, 161, (3) pp. 265-270. ISSN 0176-1617 (2004) [Refereed Article]

DOI: doi:10.1078/0176-1617-01228


Type 1 phototropin, one of the blue light receptors responsible for phototropism, is encoded in peas by at least two genes, PsPHOT1A and PsPHOT1B (formerly PsPK4 and PsPK5), both of which are more similar to Arabidopsis PHOT1 than to Arabidopsis PHOT2. We show here that PsPHOT1B encodes a full-length phototropin, whose expression pattern suggests that Psphot1b is the predominant phot1-type phototropin in etiolated seedlings. The gene encoding the other type 1 phototropin, PsPHOT1A, is expressed at low levels, with its highest levels in the leaves and stems of more mature, light-grown plants. Studies with phyA, phyB and the phyAphyB double mutants show that phyA and phyB have partially redundant roles in the reduction of PsPHOT1B expression under red light.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Genetics
Research Field:Gene expression (incl. microarray and other genome-wide approaches)
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the environmental sciences
UTAS Author:Elliott, RC (Dr Robert Elliott)
UTAS Author:Platten, JD (Mr Damien Platten)
UTAS Author:Reid, JB (Professor Jim Reid)
ID Code:29384
Year Published:2004
Web of Science® Times Cited:11
Deposited By:Plant Science
Deposited On:2004-08-01
Last Modified:2005-06-08

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