THE AUTOLYSIS PRODUCTS OF GLUCOSINOLATES IN „LEPIDIUM CAMPESTRE“ (L.) W. T. AITON (BRASSICACEAE)

M. Dekić, Amina M. Gusinac
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Abstract

Plant samples of Lepidium campestre (L.) W. T. Aiton (pepperwort) were analyzed in detail by GC and GC-MS. The analysis of the autolysates obtained from inflorescences, stems, leaves, and underground parts and the essential oil obtained by hydrodistillation allowed the identification of a series of glucosinolate degradation products, mainly isothiocyanates and nitriles. Besides previously identified ones in this species, the analyses resulted in the identification of degradation metabolites identified in pepperwort for the first time, and suggested the presence of heptyl glucosinolate, 3- phenylpropyl glucosinolate, glucoiberverin, glucoiberin, sinalbin, glucoerucin, glucoberteroin, gluconasturtiin, glucolepigramin, glucolesquerellin, glucobrassicanapin, and glucotropaeolin in this species as the most likely glucosinolate precursors. The results showed the localized accumulation of glucoberteroin, glucoerucin, and glucolesquerellin in the roots, the plant organ most exposed to pathogens, whereas sinalbin and glucobrassicanapin were accumulated in the reproductive organs and the organs most exposed to herbivores, i.e. in the aerial parts of the plant.
枸杞中硫代葡萄糖苷的自溶产物(1)苔属植物(十字花科)
金缕草(Lepidium campestre)植物样品采用气相色谱法和气相色谱-质谱法对其进行了详细分析。通过对从花序、茎、叶和地下部位获得的自解物和通过加氢蒸馏获得的精油的分析,可以鉴定出一系列硫代葡萄糖苷降解产物,主要是异硫氰酸酯和腈。除已鉴定的外,本研究还首次鉴定出了胡椒草的降解代谢物,并认为该植物中最可能存在的代谢物为庚基硫代葡萄糖苷、3-苯丙基硫代葡萄糖苷、葡萄糖苷、葡萄糖苷、sinalbin、葡萄糖苷、葡萄糖苷、葡萄糖凝血素、葡萄糖苷、葡萄糖苷、葡萄糖苷、葡萄糖苷、葡萄糖苷。结果表明,黄芪黄素、葡萄糖苷和胆固醇素在植物最易暴露于病原菌的根器官中积累,而黄芪黄素和甘蓝素在植物的生殖器官和最易暴露于草食动物的器官中积累,即在植物的地上部分。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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