Tenualexin, Other Phytoalexins and Indole Glucosinolates from Wild Cruciferous Species
作者:M. Soledade C. Pedras、Estifanos E. Yaya
DOI:10.1002/cbdv.201300260
日期:2014.6
cruciferous phytoalexin containing two MeO substituents in the indole ring, was isolated from D. tenuisiliqua, synthesized, and evaluated for antifungal activity. The phytoalexins cyclobrassinin and spirobrassinin were detected in B. tournefortii and C. abyssinica, whereas rutalexin and 4‐methoxybrassinin were only found in B. tournefortii. D. tenuifolia, and D. tenuisiliqua produced 2‐(1H‐indol‐3‐yl)acetonitriles
一般而言,植物抗毒素的化学多样性与植物抗微生物病原体的防御机制有关,其引发的代谢物与其来源的生物多样性相关。在这项工作中,由四种野生十字花科植物(Brassica tournefortii、Crambe abyssinica (crambe)、Diplotaxis tenuifolia (sand Rocket) 和 Diplotaxis tenuisiliqua (wall Rocket))产生的植物抗毒素通过 HPLC 与光电阵列和电喷雾质量检测器进行鉴定和定量。此外,对十字花科植物抗毒素的生物合成前体吲哚硫代葡萄糖苷的生产进行了评估。Tenualexin,(=2-(1,4-二甲氧基-1H-吲哚-3-基)乙腈)是第一个在吲哚环中含有两个 MeO 取代基的十字花科植物抗毒素,从 D. tenuisiliqua 中分离、合成并评估其抗真菌作用活动。在 B. tournefortii 和 C