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Metabolic and Molecular Events Occurring during Chromoplast Biogenesis

Bian, Wanping and Barsan, Cristina and Egea, Isabel and Purgatto, Eduardo and Chervin, Christian and Zouine, Mohamed and Latché, Alain and Bouzayen, Mondher and Pech, Jean-Claude Metabolic and Molecular Events Occurring during Chromoplast Biogenesis. (2011) hindawi publishing Corporation, vol. 2011 . ISSN 2090-0120

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Official URL: http://dx.doi.org/10.1155/2011/289859

Abstract

Chromoplasts are nonphotosynthetic plastids that accumulate carotenoids. They derive from other plastid forms, mostly chloroplasts. The biochemical events responsible for the interconversion of one plastid form into another are poorly documented. However, thanks to transcriptomics and proteomics approaches, novel information is now available. Data of proteomic and biochemical analysis revealed the importance of lipid metabolism and carotenoids biosynthetic activities. The loss of photosynthetic activity was associated with the absence of the chlorophyll biosynthesis branch and the presence of proteins involved in chlorophyll degradation. Surprisingly, the entire set of Calvin cycle and of the oxidative pentose phosphate pathwaypersisted after the transition from chloroplast to chromoplast. The role of plastoglobules in the formation and organisation of carotenoid-containing structures and that of the Or gene in the control of chromoplastogenesis are reviewed. Finally, using transcriptomic data, an overview is given the expression pattern of a number of genes encoding plastid-located proteins during tomato fruit ripening.

Item Type:Article
Additional Information:Thanks to hindawi publishing Corporation. The definitive version is available at http://www.hindawi.com. The original PDF of the article can be found at Journal of botany website : http://www.hindawi.com/journals/jb/2011/289859/
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:19 Sep 2011 11:52

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