Mechanism of calcium in melatonin enhancement of functional substance-phenolic acid in germinated hulless barley

• DOI: 10.1039/d2ra05289j
• Publication Date: 2022-10-13T08:46:49Z
• Authors: Xin Tian; Xudong He; Jinpeng Xu; Zhengfei Yang; Weiming Fang; Yongqi Yin
• Keywords: Phenolic acid

Phenolic acid is a physiologically active substance that has variety of effects on humans. Barley sprouts are often used as food ingredients to enrich phenolic acids and further produce functional foods rich in acids. In this study, the mechanism Ca2+ involvement regulating biosynthesis plant growth barley by melatonin (MT) under NaCl stress was investigated. According studies, MT (25 μM) increased total calcium content, induced burst, up-regulated gene expression calcium-regulated protein-dependent protein kinase calcium-binding transcription-activating protease NaCl-stressed (60 mM) barley. Exogenous its combined CaCl2 (0.4 significantly promoted increasing activity C4H PAL, PAL F5H. The addition exogenous caused systemic tolerance barley, determined decrease fluorescence intensity hydrogen peroxide oxygen radical anions well an enhancement antioxidant enzyme, thus sprout length fresh weight. addition, use with antagonists (lanthanum chloride or ethylene glycol tetraacetic acid), impaired all impacts mentioned above. These findings imply participated MT-induced improvement