光学的活性と植物生長素性に就て-植物生長素性物質に関する研究(7)-

概要

論文の詳細を見る
In the previous paper (Part III)(1) it has been reported that 1, 4-dihydro-, 3, 4-dihydro-, and 1, 2, 3, 4-tetrahydro-naphthoic acid-1 had activity of producing the adventitiots roots and in the last paper (Fart V)(2) it has been found that two of these (1, 4-dihydro and 1, 2, 3, 4-tetrahydro-naphthoic acid-1) also had strong activity to produce epinasty for tomato-plants. These new plant-hormones have an asymmetric carbon atom in each molecule and now the physiological activities of optically active components of these substances have been determined by epinasty experiments with tomato-plants (by the method described in Part IV).(3) The results obtained are illustrated in Figs. 1_??_7, and the relative activity and the radish coty-ledon test are shown in Table I and Figs. 8_??_11. Thus it appears that d-1, 4-dihydro-naphthoic acid is 100 times as active as l-acid, and l-1, 2, 3, 4-tetrahydro-naphthoic acid is 10 times as active as d-acid. Chemical procedure to resoulte the racemic acid is shown in Figs. 12 and 13. These results suggest that there is an extreme difference between "dexter" and "laevus" components on physiological activity. These new findings seem to give an important hold to study on the relation between the chemical structure and the physiological activity of plant-growth substances.
公益社団法人日本農芸化学会の論文