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首页> 外国专利> SUBSTANCE WITH LIPO-OLIGOSACCHARIDE STRUCTURE CAPABLE OF ACTING AS PLANT-SPECIFIC SYMBIOTIC SIGNALS, PROCESSES FOR PRODUCING THEM AND THEIR APPLICATIONS

SUBSTANCE WITH LIPO-OLIGOSACCHARIDE STRUCTURE CAPABLE OF ACTING AS PLANT-SPECIFIC SYMBIOTIC SIGNALS, PROCESSES FOR PRODUCING THEM AND THEIR APPLICATIONS

机译：具有脂族寡糖结构的物质，该结构可作为植物特有的共济信号，其制备方法及其应用

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An essentially pure substance has a structure of a Nod factor or one of its analogues. The Nod factor is characterized by the fact that its biosynthesis is controlled by at least one nodulation gene (nodA,B,C) common to the Rhizobiaceae, in particular to the genera Rhezobium, Bradyrhizobium, Sinorhizobium and Azorhizobium. This substance consists of a lipo-oligosaccharide which is not a derivative of the exopolysaccharides and which has the general formula (I). In formula (I), the Nod factor of which it has the strucutre is a plant-specific symbiotic signal and is capable of enhancing the capacity of the bacteria to infect the host plant with which it is associated and/or of accelerating the formation of nodules on the host plant with which it is associated and/or of inducing the transcription of symbiotic genes of the Leguminoseae. Applications to the treatment of plants and as an active therapeutic agent in humans and animals. G stands for a hexosamine variously substituted, for example by an acetyl group on the nitrogen, a sulphate group, an acetyl group and/or an ether group on oxygen R1, R2, R3, R5, R6, R7, which may be identical or different, stand for H, CH3CO-, CXHYCO- where X is a whole number between 0 and 17 and Y is a whole number between 1 and 35, or any other acyl group, for example a carbamyl groupe, R4 stands for a saturated or mono-, di, or tri-unsaturated aliphatic chain containing at least 12 carbon atoms and n is a whole number between 1 and 4.
机译：基本纯净的物质具有Nod因子或其类似物之一的结构。 Nod因子的特征在于其生物合成受至少一种根瘤菌科，特别是根瘤菌属，缓生根瘤菌属，中华根瘤菌属和根瘤菌属共有的结瘤基因（nodA，B，C）控制。该物质由脂寡糖组成，该脂寡糖不是胞外多糖的衍生物，并且具有通式（I）。在式（I）中，其具有结构的Nod因子是植物特异性的共生信号，并且能够增强细菌感染与其相关的宿主植物的能力和/或促进其形成。与其相关的宿主植物上的结节和/或诱导豆科共生基因的转录。应用于治疗植物以及作为人和动物的活性治疗剂。 G代表被例如被氮上的乙酰基，硫酸基，乙酰基和/或氧上的R 1，R 2，R 3，R 5，R 6，R 7取代的各种取代的己胺。不同，代表H，CH3CO-，CXHYCO-，其中X是0到17之间的整数，Y是1到35之间的整数，或其他任何酰基，例如氨基甲酰基，R4代表饱和或包含至少12个碳原子的单，二或三不饱和脂族链，n为1-4的整数。

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