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公开(公告)号:EP0245931A3
公开(公告)日:1989-04-12
申请号:EP87302621.5
申请日:1987-03-26
CPC分类号: A01N43/16 , C05F11/08 , C07K14/195 , C07K2319/00 , C07K2319/715 , C07K2319/81 , C12N15/66 , C12N15/743
摘要: Nodulation gene-inducing factors have been isolated and identified. A number of substituted flavones, some of which are components of exudates and extracts of leguminous plants, have been found to induce expression of certain nodulation genes in Rhizobium strains. Three components of clover extract 7,4ʹ-dihydroxyflavone, 7,4ʹ-dihydroxy-3ʹ-methoxyflavone, and 4ʹ-hydroxy-7-methoxyflavone have been identified as nodulation inducers of certain Rhizobium trifolii nod genes. A number of other flavanoids including flavones, flavanones, flavanols and dihydroflavanols, not necessarily found in legume exudates, were also found to induce expression of certain nodulation genes.
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公开(公告)号:EP0245931A2
公开(公告)日:1987-11-19
申请号:EP87302621.5
申请日:1987-03-26
CPC分类号: A01N43/16 , C05F11/08 , C07K14/195 , C07K2319/00 , C07K2319/715 , C07K2319/81 , C12N15/66 , C12N15/743
摘要: Nodulation gene-inducing factors have been isolated and identified. A number of substituted flavones, some of which are components of exudates and extracts of leguminous plants, have been found to induce expression of certain nodulation genes in Rhizobium strains. Three components of clover extract 7,4ʹ-dihydroxyflavone, 7,4ʹ-dihydroxy-3ʹ-methoxyflavone, and 4ʹ-hydroxy-7-methoxyflavone have been identified as nodulation inducers of certain Rhizobium trifolii nod genes. A number of other flavanoids including flavones, flavanones, flavanols and dihydroflavanols, not necessarily found in legume exudates, were also found to induce expression of certain nodulation genes.
摘要翻译: 已经分离和鉴定了结瘤基因诱导因子。 已经发现许多取代的黄酮,其中一些是分泌物的组分和豆科植物的提取物,其诱导在根瘤菌菌株中表达某些结瘤基因。 三叶草提取物7,4'-二羟基黄酮,7,4'-二羟基-3'-甲氧基黄酮和4'-羟基-7-甲氧基黄酮的三种成分已被鉴定为某些根瘤菌三叶od基因的结瘤诱导剂。 还发现许多其他类黄酮,包括黄豆素,黄烷醇,黄烷醇和二氢黄烷醇,不一定发现在豆科渗出物中,诱导某些结瘤基因的表达。
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公开(公告)号:EP0130047A1
公开(公告)日:1985-01-02
申请号:EP84304191.4
申请日:1984-06-21
发明人: Shine, John , Rolfe, Barry G. , Scott, Kieran F.
CPC分类号: C12N9/0095 , C07K14/325 , C07K14/825 , C12N15/743 , C12N15/90 , C12Y118/06001
摘要: There is provided a bacterial strain containing and replicating therein a recombinant DNA plasmid comprising:
(a) a vector
(b) a fragment of DNA controlling expression of a nitrogenase complex structural gene, and
(c) a structural gene under control of said fragment of DNA.摘要翻译: 提供了包含其中并复制重组DNA质粒的细菌菌株,其包含:(a)载体(b)控制氮酶复合物结构基因表达的DNA片段,和(c)在所述片段的控制下的结构基因 脱氧核糖核酸。
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