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首页> 外文期刊>The FEBS journal >Unprecedented pathogen-inducible complex oxylipins from flax - linolipins A and B
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Unprecedented pathogen-inducible complex oxylipins from flax - linolipins A and B

机译：亚麻中史无前例的病原体诱导性复合脂蛋白-亚麻酸A和B

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摘要

Oxylipins constitute a large family of bioregulators, biosynthesized via unsaturated fatty acid oxidation. This study reports the detection of an unprecedented family of complex oxylipins from flax leaves. Two major members of this family, compounds 1 and 2, were isolated and purified. Their structures were evaluated using NMR and MS analyses. Both compounds were identified as monogalactosyldiacylglycerol species. Compound 1 contains one l-linolenoyl residue and one residue of (9Z,11E,1'Z,3'Z)-12-(1',3'-hexadienyloxy)-9,11-dodecadienoic, (s5Z)-etherolenic acid at positions sn-1 and sn-2, respectively. Compound 2 possesses (s5Z)-etherolenic acid residues at both position sn-1 and position sn-2. We suggest the trivial names linolipin A and linolipin B for compounds 1 and 2, respectively, and the collective name linolipins for this new family of complex oxylipins. The linolipin content of flax leaves increased significantly in response to pathogenesis. Thus, accumulation of esterified antimicrobial divinyl ethers may be of relevance to plant defense.
机译：氧化脂构成大家族的生物调节剂，通过不饱和脂肪酸氧化生物合成。这项研究报告了从亚麻叶中检测到前所未有的复杂脂族蛋白家族。分离并纯化了该家族的两个主要成员，化合物1和2。使用NMR和MS分析评估其结构。两种化合物均被鉴定为单半乳糖基二酰基甘油。化合物1含有一个1-亚麻酸残基和一个（9Z，11E，1'Z，3'Z）-12-（1'，3'-己二烯氧基）-9,11-十二碳二烯酸，（s5Z）-烯酸的残基分别位于位置sn-1和sn-2。化合物2在sn-1和sn-2位置均具有（s5Z）-烯酸残基。我们建议分别为化合物1和2的简单名称linolipin A和linolipin B，以及对于这个复杂的复合脂族新家族而言的总名称linolipins。响应发病机理，亚麻叶的亚麻酸含量显着增加。因此，酯化的抗微生物二乙烯基醚的积累可能与植物防御有关。

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