Interconversions of different forms of vitamin B6 in tobacco plants

► Metabolism related to inter-conversion of vitamin B6 vitamers in plants. ► Maintenance of a stable level of pyridoxal 5′-phosphate in tobacco is not well-correlated to changes in levels of non-phosphorylated forms. ► Efficient conversion pathways from pyridoxal to pyridoxine and pyridoxamine are present in the plant.