Carbon isotope composition of lipidic classes isolated from tobacco leave

FEBS Letters

Tremolieres, Antoine¹  Schwebel-Dugue, Nicole¹  Deleens, Eliane¹ 

[1] Laboratoire du Phytotron, C.N.R.S., 91190 Gif-sur-Yvette, France

关键词: Fatty acid;    Lipid;    Phosphatidylcholine;    Carbon fractionation;    Nicotiana;    Leaf;    C16:0;    palmitic acid;    C16:1Tr;    trans-3-hexadecanoic acid;    C16:3;    hexadecatrienoic acid;    C18:0;    stearic acid;    C18:1;    oleic acid;    C18:2;    linoleic acid;    C18:3;    linolenic acid;    MGDG;    diacylmonogalac-tosylglycerol;    DGDG;    diacyldigalactosylglycerol;    PG;    phosphatidylglycerol;    PC;    phosphatidylcholine;    PE;    phosphatidylethanolamine;    SL;    sulfolipid;    FA;    fatty acid;    PEG;    polyethyleneglycol;    CoA;    coenzyme A;    PH;    polar head;    GLC;    gas liquid chromatography;    TLC;    thin layer chromatography;   

DOI  :  10.1016/0014-5793(84)81239-9

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

It is shown that δ ¹³C values of total fatty acids in each of the main lipidic classes of tobacco leaves reach a uniform value around −34.3‰. This finding is in agreement with the common origin for acyl chains demonstrated in plant cells. For all the lipidic classes investigated, the δ ¹³C values in acyl chains were lower than in the whole lipidic molecules, except for the phosphatidylcholine in which the acyl chains and the polar head had similar values. Metabolic origins of the different part of lipidic molecules are discussed and related to the localization of the isotope fractionation step.

【 授权许可】

Unknown