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An Uncharacterized Apocarotenoid-Derived Signal Generated in ζ-Carotene Desaturase Mutants Regulates Leaf Development and the Expression of Chloroplast and Nuclear Genes in Arabidopsis

Avendaño-Vázquez, Aida-Odette; Cordoba, Elizabeth; Llamas, Ernesto; San Román, Carolina; Nisar, Nazia; De la Torre, Susana; Ramos-Vega, Maricela; Gutiérrez-Nava, María de la Luz; Cazzonelli, Christopher Ian; Pogson, Barry; León, Patricia

Description

In addition to acting as photoprotective compounds, carotenoids also serve as precursors in the biosynthesis of several phytohormones and proposed regulatory signals. Here, we report a signaling process derived from carotenoids that regulates early chloroplast and leaf development. Biosynthesis of the signal depends on ζ-carotene desaturase activity encoded by the ζ-CAROTENE DESATURASE (ZDS)/CHLOROPLAST BIOGENESIS5 (CLB5) geneinArabidopsis thaliana. Unlike other carotenoiddeficient plants,...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
URI: http://hdl.handle.net/1885/74286
Source: The Plant Cell
DOI: 10.1105/tpc.114.123349

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