CNRS-Bayer CropScience Joint Laboratory, UMR 5240, Bayer CropScience, Lyon Cedex 9, France.
Annu Rev Plant Biol. 2012;63:507-33. doi: 10.1146/annurev-arplant-042811-105550. Epub 2011 Nov 28.
Germination vigor is driven by the ability of the plant embryo, embedded within the seed, to resume its metabolic activity in a coordinated and sequential manner. Studies using "-omics" approaches support the finding that a main contributor of seed germination success is the quality of the messenger RNAs stored during embryo maturation on the mother plant. In addition, proteostasis and DNA integrity play a major role in the germination phenotype. Because of its pivotal role in cell metabolism and its close relationships with hormone signaling pathways regulating seed germination, the sulfur amino acid metabolism pathway represents a key biochemical determinant of the commitment of the seed to initiate its development toward germination. This review highlights that germination vigor depends on multiple biochemical and molecular variables. Their characterization is expected to deliver new markers of seed quality that can be used in breeding programs and/or in biotechnological approaches to improve crop yields.
种子活力取决于植物胚胎的能力，胚胎嵌入在种子中，以协调和有序的方式恢复其代谢活动。使用“组学”方法的研究支持这样的发现，即种子萌发成功的一个主要贡献者是在母株上胚胎成熟过程中储存的信使 RNA 的质量。此外，蛋白质稳态和 DNA 完整性在萌发表型中起主要作用。由于其在细胞代谢中的关键作用及其与调节种子萌发的激素信号通路的密切关系，含硫氨基酸代谢途径代表了种子开始发育为萌发的关键生化决定因素。本综述强调，种子活力取决于多个生化和分子变量。对它们的特征描述有望提供新的种子质量标记，可以用于育种计划和/或生物技术方法来提高作物产量。
