The role of photosynthesis and amino acid metabolism in the energy status during seed development.
The role of photosynthesis and amino acid metabolism in the energy status during seed development.
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DOI：
10.3389/fpls.2014.00447
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发表时间：
2014
影响因子：
5.6
通讯作者：
Fernie AR
中科院分区：
文献类型：
--
作者：
Galili G;Avin-Wittenberg T;Angelovici R;Fernie AR
种子是被子植物维持进化的主要器官。在种子萌发的初始阶段，种子积累大量的用作营养和能量储备的储存化合物。储存化合物的积累需要大量的能量，由于氧气和光的渗透减少，特别是进入种子内部，能量的产生可能受到限制。在这篇综述中，我们讨论了调整种子代谢有限的能量生产所造成的次优渗透到种子组织中的氧气。我们还讨论了光合作用在种子发育过程中的作用及其对发育种子能量状况的贡献。最后，我们描述了氨基酸代谢对种子能量状态的贡献，重点是导致赖氨酸，苏氨酸，蛋氨酸和异亮氨酸的合成和催化的Asp-family途径。
Seeds are the major organs responsible for the evolutionary upkeep of angiosperm plants. Seeds accumulate significant amounts of storage compounds used as nutrients and energy reserves during the initial stages of seed germination. The accumulation of storage compounds requires significant amounts of energy, the generation of which can be limited due to reduced penetration of oxygen and light particularly into the inner parts of seeds. In this review, we discuss the adjustment of seed metabolism to limited energy production resulting from the suboptimal penetration of oxygen into the seed tissues. We also discuss the role of photosynthesis during seed development and its contribution to the energy status of developing seeds. Finally, we describe the contribution of amino acid metabolism to the seed energy status, focusing on the Asp-family pathway that leads to the synthesis and catabolism of Lys, Thr, Met, and Ile.
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通讯作者：
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