Model Plants for Nitrogen Fixation
Trifolium repens (white clover) and Trifolium subterraneum (subterranean clover) have proved to be good model systems for the investigation of Rhizobium symbiosis and plant defence systems. Considerable research has been done on the interaction of these clovers with Rhizobium leguminosarum bv. trifolii at the practical agricultural level. This work has now been supplemented with the application of many recent molecular techniques. Our research has investigated the interactions involved in development, defence and symbiosis of clovers. We have taken the dual approach of constructing transgenic plant tools and Proteome analysis to examine the activity of phytohormones and flavonoids as well as the roles of pathogenesis-related (PR) protein genes in these biological processes.
KeywordsTransgenic plants GUS reporter gene proteome legume root morphogenesis
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