UV-B induced changes in the secondary metabolites of Morus alba L. leaves.

Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry
Xi-Da GuJing-Kui Tian

Abstract

Ultraviolet-B (UV-B) radiation is harmful to plants and human beings. Many secondary metabolites, like flavonoids, alkaloids, and lignin, are UV-B absorbing compounds, which can protect the genetic material of plants. Furthermore, they are active components of herbal drugs. UV-B radiation can activate the self-protective secondary metabolism system. The results of this paper provide a method to induce bioactive secondary metabolites from mulberry leaves (Morus alba L.) by UV-B irradiation in vitro. Five significantly different chromatographic peaks were found by HPLC fingerprint after induction, from which two active compounds were identified: One was chalcomoracin, a natural Diels-Alder type adduct with antibacterial activity; the other one was moracin N, which is a precursor of chalcomoracin. Their contents were 0.818 mg/g and 0.352 mg/g by dry weight, respectively.

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Citations

Mar 25, 2011·Plant Cell Reports·Paramjit Khurana, Vibha G Checker
Nov 19, 2011·Biological Trace Element Research·Chun Xia MaoQing Zhou
Oct 13, 2012·Medicinal Research Reviews·Subhash PadhyeFazlul H Sarkar
Feb 15, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Olumoye AjaoYacine Boumghar
Jan 31, 2012·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Mohd Hafiz Ibrahim, Hawa Z E Jaafar
Apr 27, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Yuhang ChenWenming Wang

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Methods Mentioned

BETA
NMR

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