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首页> 外文期刊>Journal of Botany >Metabolic and Molecular Events Occurring during Chromoplast Biogenesis
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Metabolic and Molecular Events Occurring during Chromoplast Biogenesis

机译：在叶绿体生物发生过程中发生的代谢和分子事件。

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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 pathway persisted after the transition from chloroplast to chromoplast. The role of plastoglobules in the formation and organisation of carotenoid-containing structures and that of theOrgene 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.
机译：叶绿体是积累类胡萝卜素的非光合质体。它们源自其他质体形式，主要是叶绿体。导致一种质体形式相互转化为另一种质的生化事件的文献报道很少。但是，由于转录组学和蛋白质组学方法的发展，现在可以得到新颖的信息。蛋白质组学和生化分析的数据揭示了脂质代谢和类胡萝卜素生物合成活性的重要性。光合活性的丧失与叶绿素生物合成分支的缺失以及叶绿素降解所涉及的蛋白质的存在有关。令人惊讶的是，从叶绿体过渡到发色体后，整个加尔文循环和氧化性戊糖磷酸途径的整个过程持续存在。综述了质体球在含类胡萝卜素结构的形成和组织中的作用，以及Orgene在色质形成控制中的作用。最后，利用转录组学数据，概述了番茄果实成熟过程中编码质体定位蛋白的许多基因的表达模式。

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