https://www.selleckchem.com/products/bgj398-nvp-bgj398.html Furthermore, heterologous expression of MeUGT1 in Arabidopsis thaliana increased the flavonol glycoside contents in the plants. Therefore, the UGTs characterized in this study could provide new data that will be useful for examining flavonoid biosynthesis in liverworts.Melatonin (N-acetyl-5-methoxytryptamine) plays important roles in the regulation of development and the response to biotic and abiotic stresses in plants. Serotonin-N-acetyltransferase (SNAT) functions as a key catalytic enzyme involved in melatonin biosynthesis. In this study, the candidate gene VvSNAT1 (SNAT isogene) was isolated from grape (Vitis vinifera L. cv. Merlot). Tissue-specific expression and external treatment revealed that VvSNAT1 is a salt-inducible gene that is highly expressed in leaves. Subcellular localisation results revealed that VvSNAT1 was located in the chloroplasts, which is similar to other plant SNAT proteins. Ectopic overexpression of VvSNAT1 in Arabidopsis resulted in increased melatonin production and salt tolerance. Transgenic Arabidopsis overexpressing VvSNAT1 exhibited enhanced growth and physiological performance, including a lower degree of leaf wilting, higher germination rate, higher fresh weight, and longer root length under salt stress. Moreover, overexpression of VvSNAT1 in Arabidopsis protected cells from oxidative damage by reducing the accumulation of malondialdehyde (MDA) and hydrogen peroxide (H2O2). These results indicate that VvSNAT1 positively responds to salt stress. Our results provide a novel perspective for VvSNAT1 to improve salt tolerance, mediated by melatonin accumulation, plant growth promotion and oxidative damage reduction.Sinocalycanthus chinensis, a diploid (2n = 22) deciduous shrub, belongs to the Calycanthaceae family of magnoliids and is rich secondary metabolites, such as terpenoids. However, the regulation of terpenoid biosynthesis in S. chinensis is largely unknown. In this st