Correlations between Tocopherol and Fatty Acid Components in Germplasm Collections of Brassica Oilseeds
Correlations between Tocopherol and Fatty Acid Components in Germplasm Collections of Brassica Oilseeds
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芸苔属油籽种质资源中生育酚与脂肪酸成分的相关性
DOI：
10.1021/jf3042837
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发表时间：
2013-01-09
影响因子：
6.1
通讯作者：
Jiang, Lixi
中科院分区：
文献类型：
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作者：
Li, Yuanlong;Hussain, Nazim;Jiang, Lixi
到目前为止，人们对菜籽油中生育酚(T)和脂肪酸(FA)之间的相关性知之甚少。本研究对甘蓝型油菜、甘蓝型油菜和甘蓝型油菜地方品种种质资源和甘蓝型油菜低芥酸(EA)育种品系的脂肪酸和睾酮含量进行了分析。在由地方品种组成的群体中，α-T与C18：1和C18：2之和呈显著正相关，而α-T与C18：3和极长链脂肪酸(VLCFA)均未发现正相关。几乎没有观察到伽马-T和FA成分之间的任何联系，这表明α-T的功能可能超出了它的抗氧化特性。油菜油中T和FA组分之间相关性的复杂性可能源于α-T在内质网(ER)FA代谢中的作用。
To date, little is known about the correlations among the tocopherol (T) and fatty acid (FA) components in rapeseed oils. In the current study, a germplasm collection of landraces from the species Brassica juncea, Brassica rapa, and Brassica napus and a collection of low erucic acid (EA) breeding lines from B. napus were analyzed for FA and T contents. In the groups comprising landraces, the most notable correlation was the significantly positive one between alpha-T and the sum of C18:1 and C18:2, whereas neither positive correlations were found between alpha-T and C18:3 nor were positive correlations observed between alpha-T and very long chain FAs (VLCFA). Hardly any association between gamma-T and FA components was observed, indicating the possible function of alpha-T beyond its antioxidant property. The complexity of correlation between T and FA components in Brassica oils may arise from the role of alpha-T in the FA metabolism of endoplasmic reticulum (ER).