Maier, Alexander and Hoecker, Ute ORCID: 0000-0002-5636-9777
(2015).
COP1/SPA ubiquitin ligase complexes repress anthocyanin accumulation under low light and high light conditions.
Plant Signal. Behav., 10 (1).
PHILADELPHIA:
TAYLOR & FRANCIS INC.
ISSN 1559-2324
Abstract
In Arabidopsis and many other plant species, anthocyanin pigments accumulate only after light exposure and not in darkness. Excess light of very high fluence rates leads to a further, very strong increase in anthocyanin levels. How excess light is sensed is not well understood. Here, we show that mutations in the key repressor of light signaling, the COP1/SPA complex, cause a strong hyperaccumulation of anthocyanins not only under normal light but also under excess, high light conditions. Hence, normal light signaling via COP1/SPA is required to prevent hyperaccumulation of anthocyanins under these high light conditions. However, since cop1 and spa mutants show a similar high-light responsiveness of anthocyanin accumulation as the wild type it remains to be resolved whether COP1/SPA is directly involved in the high-light response itself.
Item Type: | Journal Article | ||||||||||||
Creators: |
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URN: | urn:nbn:de:hbz:38-419679 | ||||||||||||
DOI: | 10.4161/15592316.2014.970440 | ||||||||||||
Journal or Publication Title: | Plant Signal. Behav. | ||||||||||||
Volume: | 10 | ||||||||||||
Number: | 1 | ||||||||||||
Date: | 2015 | ||||||||||||
Publisher: | TAYLOR & FRANCIS INC | ||||||||||||
Place of Publication: | PHILADELPHIA | ||||||||||||
ISSN: | 1559-2324 | ||||||||||||
Language: | English | ||||||||||||
Faculty: | Faculty of Mathematics and Natural Sciences | ||||||||||||
Divisions: | Faculty of Mathematics and Natural Sciences > Department of Biology > Botanical Institute | ||||||||||||
Subjects: | no entry | ||||||||||||
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Refereed: | Yes | ||||||||||||
URI: | http://kups.ub.uni-koeln.de/id/eprint/41967 |
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