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Phytochrome regulation of pea phototropin


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Elliott, RC and Platten, JD and Watson, JC and Reid, JB (2004) Phytochrome regulation of pea phototropin. Journal of Plant Physiology, 161 (3). pp. 265-270. ISSN 01761617

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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 Type: Article
Journal or Publication Title: Journal of Plant Physiology
Page Range: pp. 265-270
ISSN: 01761617
Identification Number - DOI: 10.1078/0176-1617-01228
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Date Deposited: 06 Feb 2012 05:18
Last Modified: 18 Nov 2014 04:27
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