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Chromoplast Differentiation: Current Status and Perspectives

Egea, Isabel and Barsan, Cristina and Bian, Wanping and Purgatto, Eduardo and Latché, Alain and Chervin, Christian and Bouzayen, Mondher and Pech, Jean-Claude Chromoplast Differentiation: Current Status and Perspectives. (2010) Plant & Cell Physiology, vol. 51 (n° 10). pp. 1601-1611. ISSN 0032-0781

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Official URL: http://dx.doi.org/10.1093/pcp/pcq136

Abstract

Chromoplasts are carotenoid-accumulating plastids conferring color to many flowers and fruits as well as to some tubers and roots. Chromoplast differentiation proceeds from preexisting plastids, most often chloroplasts. One of the most prominent changes is remodeling of the internal membrane system associated with the formation of carotenoid-accumulating structures. During the differentiation process the plastid genome is essentially stable and transcriptional activity is restricted. The buildup of the chromoplast for specific metabolic characteristics is essentially dependent upon the transcriptional activity of the nucleus. Important progress has been made in terms of mediation of the chloroplast-to-chromoplast transition with the discovery of the crucial role of the Or gene. In this article we review recent developments in the structural, biochemical and molecular aspects of chromoplast differentiation and also consider the reverse differentiation of chromoplasts into chloroplast-like structures during the regreening process occurring in some fruit. Future perspectives toward a full understanding of chromoplast differentiation include in-depth knowledge of the changes occurring in the plastidial proteome during chromoplastogenesis, elucidation of the role of hormones and the search for signals that govern the dialog between the nuclear and the chromoplastic genome.

Item Type:Article
Additional Information:Thanks to Oxford University Press editor. The definitive version is available at http://www.oxfordjournals.org/our_journals/pcp/about.html The original PDF of the article can be found at Plant & Cell Physiology website : http://pcp.oxfordjournals.org/content/51/10/1601.abstract
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
French research institutions > Institut National de la Recherche Agronomique - INRA
Other partners > Universidade de São Paulo - USP (BRAZIL)
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Deposited By: Brigitte LAFFORGUE
Deposited On:26 Jan 2011 13:18

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