Secondary products in mycorrhizal roots of tobacco and tomato

被引:70
作者
Maier, W
Schmidt, J
Nimtz, M
Wray, V
Strack, D
机构
[1] Leibniz Inst Pflanzenbiochem, IPB, Abt Sekundarstoffwechsel, D-06120 Halle, Saale, Germany
[2] Gesell Biotechnol Forsch GmbH, D-38124 Braunschweig, Germany
关键词
tobacco; tomato; Solanaceae; Glomus intraradices; arbuscular mycorrhiza; cyclohexenone derivatives; isoprenoids; coumarins;
D O I
10.1016/S0031-9422(00)00047-9
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
Colonization of the roots of various tobacco species and cultivars (Nicotiana glauca Grab,, N. longiflora Cav., N. rustica L., N. tabacum L., N. tabacum L. cv. Samsun NN, N. sanderae hort. Sander ex Wats.) as well as tomato plants (Lycopersicon esculentum L. cv. Moneymaker) by the arbuscular mycorrhizal fungus Glomus intraradices Schenck and Smith resulted in the accumulation of several glycosylated C-13 cyclohexenone derivatives. Eight derivatives were isolated from the mycorrhizal roots by preparative high performance liquid chromatography (HPLC) and spectroscopically identified (MS and NMR) as mono-, di- and triglucosides of 6-(9-hydroxybutyl)-1,1,5-trimethyl-4-cyclohexen-3-one and monoglucosides of 6-(9-hydroxybutyl)-1,5-dimethyl-4-cyclohexen-3-one-1-carboxylic acid and 6-(9-hydroxybutyl)-1,1-dimethyl-4-cyclohexen-3-one-5-carboxylic acid. In contrast to the induced cyclohexenone derivatives, accumulation of the coumarins scopoletin and its glucoside (scopolin) in roots of N. glauca Grah. and N. tabacum L. cv. Samsun NN, was markedly suppressed. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:473 / 479
页数:7
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