Cytokinin involvement in the control of coumarin accumulation in Nicotiana tabacum. Investigations with normal and transformed tissues carrying the isopentenyl transferase gene

biosynthese biosynthesis biotechnologie biotechnology biotecnologia citoquininas coumarine coumarins cultivo de tejidos culture de tissu cumarinas cytokinine cytokinins gene expression in vitro experimentation metabolism metabolisme metabolismo nicotiana tabacum tissue culture transferasas transferase transferases transgenic plants