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,该结构可以作为植物特有的共济信号,其制备方法及其应用

摘要

substantially pure substance having the structure of a nod factor or one of its analogues, which nod factor is characterized by the fact that its biosynthesis is controlled by at least one nodulation gene (noda, b, c) to the rhizobiacu00e9es, in particular to the genera rhizobium, bra dyrhizobium, sinorhizobium and azorhizobium.this substance is a natural derivative of lipo oligosaccharide - and conforms to the general formula (i).the nod factor which the structure is a plant specific symbiotic signal and is able to enhance the ability of the bacteria to infect the host with which it is associated, and / or to speed up the formation of nodules on the host plant to which it is associated, and / to induce the transcription of genes for symbiotic legumes.applications for the treatment of plants and as an active therapeutic agent in humans and animals.the formula (i) in which: a hexosamine variously substituted, for example, by a group of n acetyl group, a sulfate group, an acetyl group, and / or an ether oxygen, and r1, r2, r3, r5, r6, r7, which may be identical or different, represent. ch3co, cxhy, - where x is an integer between 0 and 5 and y is an integer between 1 and 35.or any other group such as, for example, an acyl, carbamoyl; r4 is an aliphatic chain saturated or mono -, di -, or tri unsaturated containing at least 12 carbon atoms, and n is an integer between 1 and 4.
机译:具有结节因子或其类似物之一结构的基本上纯净的物质,该结节因子的特征在于其生物合成受至少一个根瘤菌的结瘤基因(noda,b,c)控制,特别是根瘤菌属,胸腺根瘤菌属,鼻根瘤菌属和天生根瘤菌属的一种。该物质是脂寡糖的天然衍生物-符合通式(i)。该结节因子的结构是植物特有的共生信号,能够增强植物的共生信号。细菌感染与之相关的宿主的能力,或加速与之相关的宿主植物上结节的形成的能力,以及诱导共生豆科植物基因转录的能力。式(i),其中:六胺被例如n个乙酰基,硫酸根,乙酰基等基团取代的己糖胺,和/或醚氧,和r1,r2,r3,r5,r6,r7可以相同或不同。 ch3co,cxhy,-其中x是0至5之间的整数,y是1至35之间的整数,或任何其他基团,例如酰基,氨基甲酰基; r4是含有至少12个碳原子的饱和或单不饱和,单不饱和或三不饱和脂族链,n为1-4的整数。

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