BETA-ORCINOL DERIVATIVES IN LICHENS - BIOGENETIC EVIDENCE FROM OROPOGON-LOXENSIS

被引：22

作者：

CULBERSON, CF

CULBERSON, WL

机构：

[1] Department of Botany, Duke University, Durham

来源：

EXPERIMENTAL MYCOLOGY | 1978年 / 2卷 / 03期

基金：

美国国家科学基金会;

关键词：

2′-O-methylatranorin; atranorin; chemosyndromic variation; Lichens; methyl; 3-α-hydroxy-4-O-demethylbarbatate; 4-O-demethylbarbatate; Oropogon loxensis; protocetraric acid; salazinic acid; β-orcinol derivatives;

D O I：

10.1016/S0147-5975(78)80018-8

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Oropogon loxensis produces atranorin, protocetraric acid, salazinic acid, and three new depsides-2′-O-methylatranorin, methyl 3-α-hydroxy-4-O-demethylbarbatate, and methyl 4-O-demethyl-barbatate. The joint occurrence of these compounds and an analysis of structural patterns among the 41 known β-orcinol derivatives support a biogenetic hypothesis involving C-methylation and/or C-formylation at the polyketide stage and a metabolic grid of redox reactions of aromatic precursors leading to the para-depsides, depsidones, benzyl esters, and meta-depsides typical of lichens. © 1978 Academic Press, Inc. All rights reserved.

引用

页码：245 / 257

页数：13

共 22 条

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[9]

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CULBERSON, WL ;

CULBERSON, CF ;

JOHNSON, A .

PLANT SYSTEMATICS AND EVOLUTION, 1977, 127 (2-3) :191-200

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