Asakura Hiroko, Yamakawa Takashi, Tamura Tomoko, Ueda Reiko, Taira Shu, Saito Yoshikazu, Abe Keiko, Asakura Tomiko
Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan.
Department of Global Agricultural Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan.
J Agric Food Chem. 2021 Mar 10;69(9):2894-2905. doi: 10.1021/acs.jafc.0c06168. Epub 2021 Feb 27.
Transcriptome and metabolome analysis in tomato () fruits cultivated under drought conditions showed that drought stress promoted fatty acid synthesis and increased the content of fatty acids in fruits. The accumulation of some phospholipids composed of palmitic acid and oleic acid also was significantly increased, especially in seeds. Moreover, inositol, which is a component of cell membranes and cell walls, was increased through the activity of the myoinositol monophosphatase 1-mediated pathway. In mature fruits, the levels of metabolic regulators such as β-alanine and 4-aminobutyric acid were elevated. These results showed that these compounds are drought-responsive and enhance drought tolerance and subsequently they could enhance the nutritional value and health benefits of tomato fruit.
干旱条件下栽培的番茄果实转录组和代谢组分析表明，干旱胁迫促进了脂肪酸合成并增加了果实中脂肪酸的含量。一些由棕榈酸和油酸组成的磷脂的积累也显著增加，尤其是在种子中。此外，作为细胞膜和细胞壁组成成分的肌醇通过肌醇单磷酸酶1介导的途径活性增加。在成熟果实中，β-丙氨酸和4-氨基丁酸等代谢调节物的水平升高。这些结果表明，这些化合物对干旱有响应，可增强耐旱性，进而提高番茄果实的营养价值和健康益处。
