The unusual occurrence of 14-methylhexadecanoic acid in pinaceae seed oils among plants

被引:26
作者
Wolff, RL [1 ]
Christie, WW [1 ]
Coakley, D [1 ]
机构
[1] SCOTTISH CROP RES INST,DUNDEE DD2 5DA,SCOTLAND
关键词
D O I
10.1007/s11745-997-0126-9
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
14-Methylhexadecanoic (14-MHD) acid has been identified in a sample of pine seed oil (Pinus contorta) by gas-liquid chromatography-mass spectrometry of its picolinyl ester derivative. Its identification (through its equivalent chain length) and its distribution in four conifer families have been checked. It occurred only in Pinaceae, where it was found in 72 species belonging to the genera Pinus, Abies, Cedrus, Tsuga, Pseudotsuga, Larix, and Picea, in the range 0.02-1.15%. 14-MHD acid could not be detected in the lipids of Taxaceae (Taxus baccata), Cupressaceae (Juniperus communis), or Taxodiaceae (Sciadopytis verticillata), even after a 10-fold concentration of the saturated acid fraction isolated by argentation thin-layer chromatography. It is concluded that Pinaceae along with Ginkgo biloba seed lipids, are major exceptions in the plant kingdom with regard to 14-MHD acid, which otherwise occurs almost exclusively in lipids of animals and microorganisms. The biosynthesis and metabolic role of 14-MHD acid, which otherwise also occur in wood and leaf lipids, remain unknown.
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页码:971 / 973
页数:3
相关论文
共 11 条
[1]   CHARACTERIZATION OF EPOXIDES OF POLY-UNSATURATED FATTY-ACIDS BY MASS-SPECTROMETRY VIA 3-PYRIDINYLMETHYL ESTERS [J].
BALAZY, M ;
NIES, AS .
BIOMEDICAL AND ENVIRONMENTAL MASS SPECTROMETRY, 1989, 18 (05) :328-336
[2]  
CHRISTIE WW, 1989, GAS CHROMATOGRAPH LI
[3]   PICOLINYL ESTERS AS DERIVATIVES FOR THE STRUCTURAL DETERMINATION OF LONG-CHAIN BRANCHED AND UNSATURATED FATTY-ACIDS [J].
HARVEY, DJ .
BIOMEDICAL MASS SPECTROMETRY, 1982, 9 (01) :33-38
[4]   The fatty acid composition of the seeds of Ginkgo biloba [J].
Hierro, MTG ;
Robertson, G ;
Christie, WW ;
Joh, YG .
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1996, 73 (05) :575-579
[5]   LEAF LIPIDS OF SOME CONIFER SPECIES [J].
JAMIESON, GR ;
REID, EH .
PHYTOCHEMISTRY, 1972, 11 (01) :269-&
[6]   CIS-5-OLEFINIC UNUSUAL FATTY-ACIDS IN SEED LIPIDS OF GYMNOSPERMAE AND THEIR DISTRIBUTION IN TRIACYLGLYCEROLS [J].
TAKAGI, T ;
ITABASHI, Y .
LIPIDS, 1982, 17 (10) :716-723
[7]   FATTY-ACID COMPOSITION OF SOME PINE SEED OILS [J].
WOLFF, RL ;
BAYARD, CC .
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1995, 72 (09) :1043-1046
[8]   Conifer seeds: Oil content and fatty acid composition [J].
Wolff, RL ;
Deluc, LG ;
Marpeau, AM .
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1996, 73 (06) :765-771
[9]  
WOLFF RL, IN PRESS TREES
[10]  
WOLFF RL, IN PRESS J AM OIL CH