THE AUXIN PHENYLACETIC ACID INDUCES NIN EXPRESSION IN THE ACTINORHIZAL PLANT DATISCA GLOMERATA, WHEREAS CYTOKININ ACTS ANTAGONISTICALLY.

The auxin phenylacetic acid induces NIN expression in the actinorhizal plant Datisca glomerata, whereas cytokinin acts antagonistically.

All nitrogen-fixing root nodule symbioses of angiosperms-legume and actinorhizal symbioses-possess a common ancestor.Molecular processes for the induction of root nodules are modulated by phytohormones, as is the case of the first nodulation-related transcription factor NODULE INCEPTION (NIN), whose expression can be induced by exogenous cytokinin

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