Metabolite Profiling of the Response of Burdock Roots to Copper Stress was written by Jung, Youngae;Ha, Miyoung;Lee, Jueun;Ahn, Yun Gyong;Kwak, Jong Hwan;Ryu, Do Hyun;Hwang, Geum-Sook. And the article was included in Journal of Agricultural and Food Chemistry in 2015.Reference of 1731-94-8 The following contents are mentioned in the article:
Arctium lappa L. (Asteraceae), also known as burdock, has a long history of cultivation as a dietary vegetable worldwide. Stress in plants disrupts metabolic homeostasis and requires adjustment of metabolic pathways. Exposure to heavy metals is one of the most prevalent environmental stresses encountered by plants. In this study, metabolite profiling based on 1H NMR and GC-MS was used to obtain a holistic view of the response of burdock roots to copper stress. The principal component anal. model generated from the NMR data showed significant separation between groups. Copper-treated burdock roots were characterized by increased levels of phenols and decreased levels of primary metabolites. These results suggest that copper stress leads to activation of the phenylpropanoid pathway and growth inhibition. GC-MS analyses revealed increased levels of unsaturated fatty acids and decreased levels of sterols in the copper-treated group. Changes in metabolite concentrations were analyzed by UPLC/QTRAP-MS, and the significances were confirmed by two-way anal. of variance and Bonferroni’s test. Interestingly, linoleic acid was increased about 2.7-fold, from 316 to 855 ppm, in the group treated with copper for 6 days. This study demonstrates that metabolomic profiling is an effective anal. approach to understanding the metabolic pathway(s) associated with copper stress in burdock roots. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Reference of 1731-94-8).
Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Reference of 1731-94-8
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