Higher cardol homologs (5-alkylresorcinols) in rye seedlings

被引:26
作者
Deszcz, L [1 ]
Kozubek, A [1 ]
机构
[1] Univ Wroclaw, Inst Biochem & Mol Biol, Dept Lipids & Lipsomes, PL-51148 Wroclaw, Poland
来源
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR AND CELL BIOLOGY OF LIPIDS | 2000年 / 1483卷 / 02期
关键词
cardol; alkylresorcinol; phenolic lipid; rye seedling; secale cereale;
D O I
10.1016/S1388-1981(99)00187-0
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
The occurrence of alkylresorcinols, polyketide compounds that in the same homologous series as cardol isolated from Anacardium occidentale (cashew) or bilobol from Ginkgo biloba which are derivatives of 1,3-dihydroxy-5-alk(en)ylbenzene, have been demonstrated in developing rye (Secale cereale L.) kernels. The 3-day-old seedlings grown in sterile conditions already contain detectable amounts of phenolic compounds that were identified as alkylresorcinols. This fraction is the mixture of saturated and enoic homologs of various lengths of the aliphatic side chain. The composition of homologs is similar to that determined in mature grains. The relatively high level of alkylresorcinols in mitochondria and plastids (enhanced approximately twice in the absence of light) suggests that their synthetic pathway and/or biological function may be related to these cellular compartments. Resorcinolic lipids, when present in the external medium, are taken up by seedlings in the energy-dependent manner. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:241 / 250
页数:10
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