College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China.
College of Natural Resources and Environment, Baoshan University, Baoshan 678000, China.
Int J Mol Sci. 2022 Apr 24;23(9):4704. doi: 10.3390/ijms23094704.
Quinoa ( Willd.) is a dicotyledonous annual herb of Family Amaranthaceae and Subfamily Chenopodiaceae. It has high nutritional and economic value. Phosphorus (P) is an essential plant macronutrient, a component of many biomolecules, and vital to growth, development, and metabolism. We analyzed the transcriptomes and metabolomes of Dianli-1299 and Dianli-71 quinoa seedlings, compared their phenotypes, and elucidated the mechanisms of their responses to the phosphorus treatments. Phenotypes significantly varied with phosphorus level. The plants responded to changes in available phosphorus by modulating metabolites and genes implicated in glycerophospholipid, glycerolipid and glycolysis, and glyconeogenesis metabolism. We detected 1057 metabolites, of which 149 were differentially expressed (DEMs) and common to the control (CK) vs. the low-phosphorus (LP) treatment samples, while two DEMs were common to CK vs. the high-phosphorus (HP) treatment samples. The Kyoto Encyclopedia of genes and genomes (KEGG) annotated 29,232 genes, of which 231 were differentially expressed (DEGs) and common to CK vs. LP, while one was common to CK vs. HP. A total of 15 DEMs and 11 DEGs might account for the observed differences in the responses of the quinoa seedlings to the various phosphorus levels. The foregoing results may provide a theoretical basis for improving the phosphorus utilization efficiency in quinoa.
藜麦（Willd.）是苋科藜亚科藜属的一种二年生草本植物。它具有很高的营养价值和经济价值。磷（P）是植物必需的大量营养素，是许多生物分子的组成部分，对生长、发育和新陈代谢至关重要。我们分析了 Dianli-1299 和 Dianli-71 藜麦幼苗的转录组和代谢组，比较了它们的表型，并阐明了它们对磷处理的响应机制。表型随磷水平显著变化。植物通过调节与甘油磷脂、甘油脂和糖酵解以及糖异生代谢相关的代谢物和基因来响应可利用磷的变化。我们检测到 1057 种代谢物，其中 149 种代谢物在对照（CK）与低磷（LP）处理样品之间差异表达（DEMs），而在 CK 与高磷（HP）处理样品之间有两个 DEMs 是共同的。京都基因与基因组百科全书（KEGG）注释了 29232 个基因，其中 231 个在 CK 与 LP 之间差异表达（DEGs），而一个在 CK 与 HP 之间差异表达。总共 15 个 DEMs 和 11 个 DEGs 可能解释了藜麦幼苗对不同磷水平的反应差异。上述结果可为提高藜麦磷利用效率提供理论依据。
