PLANT PHENOLIC-COMPOUNDS INDUCE EXPRESSION OF THE AGROBACTERIUM-TUMEFACIENS LOCI NEEDED FOR VIRULENCE
PLANT PHENOLIC-COMPOUNDS INDUCE EXPRESSION OF THE AGROBACTERIUM-TUMEFACIENS LOCI NEEDED FOR VIRULENCE
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DOI：
10.1126/science.3085219
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发表时间：
1986-05-23
期刊：
影响因子：
56.9
通讯作者：
GORDON, MP
中科院分区：
文献类型：
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作者：
BOLTON, GW;NESTER, EW;GORDON, MP
根癌农杆菌的毒力位点是一组相连的转录单位，在植物肿瘤发生的早期阶段发挥重要作用。这些基因座是在细菌与植物细胞共培养时诱导的。广泛分布于被子植物中的七种酚类化合物——儿茶酚、没食子酸、焦性没食子酸、对羟基苯甲酸、原儿茶酸、β-间苯二酚酸和香草醛——能够诱导毒力位点的表达。这些酚类物质组合起来诱导病毒基因座的每个转录基因座。此外，这种诱导显示出与细菌与植物细胞共培养期间观察到的相似的动力学和遗传控制。
The virulence loci of Agrobacterium tumefaciens are a set of linked transcriptional units that play an essential role in the early stages of plant tumorigenesis. These loci are induced upon cocultivation of the bacteria with plant cells. Seven phenolic compounds that are widely distributed among the angiosperm plants-catechol, gallic acid, pyrogallic acid, p-hydroxybenzoic acid, protocatechuric acid, .beta.-resorcylic acid, and vanillin-are able to induce the expression of the virulence loci. These phenolics in combination induce each transcriptional locus of the vir loci. Furthermore, this induction displays similar kinetics and genetic control to that observed during cocultivation of the bacteria with plant cells.