Biosynthesis and Metabolism of Trigonelline in Lemna paucicostata 151(Biological Chemistry)

概要

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It was found that TRG promoted the growth of duckweed Lemna paudcostata 151 in a wide range of concentrations and the effect was the strongest at 20μM, at which the growth rate was 1.8 times that of the control. The biosynthesis and metabolism of TRG in L. paudcostata 151 was investigated in relation to the plant growth-promoting and flower-inducing activities of the compound to obtain fundamental information on plant growth regulation. Properties of the TRG synthesizing enzyme, nicotinate methyltransferase, were elucidated. Various potent inhibitors to the enzyme were found : TRG (product inhibition), benzoic acid, salicylic acid, picolinic acid, isonicotinic acid, and pyrazinamide. It should be noted that all these compounds except TRG are flowering inducers of the plant. Some relationship between the metabolism of TRG and plant growth regulation is postulated.
社団法人日本農芸化学会の論文
1989-11-23