专利名称：SPONTANEOUS NODULATION IN PLANTS 发明人：TIRICHINE, Leila,JENSEN, Jens,
Stougaard,SANDAL, Niels,MADSEN, Lene,
Heegard
申请号：EP06761874.4
申请日：20060713
公开号：EP1902133A2
公开日：
20080326
摘要：Formation of nitrogen fixing root nodules in legumes is induced by perception of lipochitin-oligosaccharide signal molecules secreted by compatible Rhizobium bacteria, which triggers a common symbiotic pathway. The present invention provides a spontaneous nodule formation (snf1-5g) mutant, in which the formation of symbiotic nodules is deregulated, leading to nodule development in the absence as well as in the presence of Rhizobium bacteria and/or exogenous rhizobial signals. The invention further provides an isolated DNA sequence encoding a mutant chimeric Ca2+/calmodulin dependent protein kinase whose activity results in this `gain of function′ phenotype of spontaneous nodule formation. Furthermore the snf1-5g gene is shown to confer a spontaneous nodule formation phenotype to plants having a nodulation deficient genetic background. A gene of the invention, that confers a spontaneous nodulation phenotype, has utility for the transfer and establishment of nitrogen fixing capability in non-nodulating plants, and thereby reducing the nitrogen fertilizer dependence of non-nodulating crop plants.
申请人：Aarhus Universitet
地址：Ledelsessekretariatet Administrationen Bygning 4 31 Nordre Ringgade 1 8000 Arhus C DK
国籍：DK
代理机构：Benthin, Stig
sidselrasmussen
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