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首页> 外文期刊>Trends in Plant Science >Can Arabidopsis make complex alkaloids? [Review]
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Can Arabidopsis make complex alkaloids? [Review]

机译:拟南芥可以制造复杂的生物碱吗? [评论]

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摘要

Alkaloids are a large group of secondary metabolites with diverse biosynthetic origins and limited taxonomic distribution. They are generally defined by the occurrence of a nitrogen atom in an oxidative state within a heterocyclic ring. Homologues for many enzymes involved in alkaloid biosynthesis have been detected in the Arabidopsis genome, in spite of the apparent lack of complex alkaloids in this plant. The most common homologues are putative genes encoding decorative enzymes such as hydroxylases, methyltransferases and acetyltransferases. Nevertheless, the recent discovery that Arabidopsis produces volatile terpenoids, coupled with the multitude of alkaloid biosynthetic gene homologues, lends credibility to the suggestion that undiscovered alkaloids are also present in this plant.
机译:生物碱是一大类次生代谢产物,具有多种生物合成来源和有限的生物分类分布。它们通常由杂环中氧化态的氮原子的存在来定义。尽管在该植物中显然缺乏复杂的生物碱,但已在拟南芥基因组中检测到了与生物碱生物合成有关的许多酶的同源物。最常见的同源物是编码装饰性酶(例如羟化酶,甲基转移酶和乙酰基转移酶)的推定基因。然而,最近发现拟南芥产生挥发性萜类化合物,再加上众多生物碱生物合成基因同系物,使人相信该植物中也存在未发现的生物碱。

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