Yu Jingyao, Yang Yu, Luo Lanjun, Feng Fang, Saeed Sana, Luo Jie, Fang Chuanying, Zhou Junjie, Li Kang
School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China.
School of Tropical Agriculture and Forestry, Hainan University, Haikou 570288, China.
Foods. 2024 May 16;13(10):1544. doi: 10.3390/foods13101544.
Plant factories offer a promising solution to some of the challenges facing traditional agriculture, allowing for year-round rapid production of plant-derived foods. However, the effects of conditions in plant factories on metabolic nutrients remain to be explored. In this study, we used three rice accessions (KongYu131, HuangHuaZhan, and Kam Sweet Rice) as objectives, which were planted in a plant factory with strict photoperiods that are long-day (12 h light/12 h dark) or short-day (8 h light/16 h dark). A total of 438 metabolites were detected in the harvested rice grains. The difference in photoperiod leads to a different accumulation of metabolites in rice grains. Most metabolites accumulated significantly higher levels under the short-day condition than the long-day condition. Differentially accumulated metabolites were enriched in the amino acids and vitamin B6 pathway. Asparagine, pyridoxamine, and pyridoxine are key metabolites that accumulate at higher levels in rice grains harvested from the short-day photoperiod. This study reveals the photoperiod-dependent metabolomic differences in rice cultivated in plant factories, especially the metabolic profiling of taste- and nutrition-related compounds.
植物工厂为传统农业面临的一些挑战提供了一个有前景的解决方案，能够实现全年快速生产植物源食品。然而，植物工厂中的条件对代谢营养成分的影响仍有待探索。在本研究中，我们以三个水稻品种（空育131、黄花占和香米）为研究对象，将它们种植在具有严格光周期的植物工厂中，光周期分别为长日照（12小时光照/12小时黑暗）或短日照（8小时光照/16小时黑暗）。在收获的水稻籽粒中总共检测到438种代谢物。光周期的差异导致水稻籽粒中代谢物的积累不同。大多数代谢物在短日照条件下的积累水平显著高于长日照条件。差异积累的代谢物在氨基酸和维生素B6途径中富集。天冬酰胺、吡哆胺和吡哆醇是在短日照光周期收获的水稻籽粒中积累水平较高的关键代谢物。本研究揭示了植物工厂栽培水稻中光周期依赖性的代谢组学差异，特别是与味道和营养相关化合物的代谢谱。
