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Modulation of a pyridoxal 5'-phosphate-synthesizing enzyme, pyridoxine (pyridoxamine) phosphate oxidase (EC 1.4.3.5), was investigated in wheat suspension culture. Pyridoxine-HCl added to the culture medium enhanced the pyridoxine 5'-phosphate (PNP) oxidase activity, but not pyridoxamine 5'-phosphate (PMP) oxidase activity. Thiamine-HCl also showed a similar effect. The PNP oxidase activity was most effectively enhanced by potassium nitrate from 40 to 80 mM, which was added to the culture medium as a nitrogen source. On the other hand, PMP oxidase activity was stimulated by ammonium-type nitrogen.
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 2 | |
popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |