Chechetkin IR, Blufard AS, Khairutdinov BI, Mukhitova FK, Gorina SS, Yarin AY, Antsygina LL, Grechkin AN. Isolation and structure elucidation of linolipins C and D, complex oxylipins from flax leaves.
Phytochemistry 2013;
96:110-6. [PMID:
24042063 DOI:
10.1016/j.phytochem.2013.08.010]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 07/05/2013] [Accepted: 08/17/2013] [Indexed: 05/08/2023]
Abstract
Two complex oxylipins (linolipins C and D) were isolated from the leaves of flax plants inoculated with phytopathogenic bacteria Pectobacterium atrosepticum. Their structures were elucidated based on UV, MS and NMR spectroscopic data. Both oxylipins were identified as digalactosyldiacylglycerol (DGDG) molecular species. Linolipin C contains one residue of divinyl ether (ω5Z)-etherolenic acid and one α-linolenate residue at sn-1 and sn-2 positions, respectively. Linolipin D possesses two (ω5Z)-etherolenic acid residues at both sn-1 and sn-2 positions. The rapid formation (2-30min) of linolipins C and D alongside with linolipins A and B occurred in the flax leaves upon their damage by freezing-thawing.
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