<研究報告>ダイズ幼植物切枝の胚軸の伸長と不定根形成におよぼす呼吸阻害剤の影響について

概要

論文の詳細を見る
The effects of various respiratory inhibitors on the hypocotyl elongation and the roooting in the hypocoty cuttings of etiolated soybean seedlings have been examined. The epicotyl elongation and the maximum length of root decrease with increasing of concentration of 2, 4-dinitrophenol, sodium azide, potassium cyanide and malonate which are concerned with oxidative phosphorylation and TCA cycle as inhibitor. The hypocotyl elongation is greater in lower concentration of the above inhibitors as compared with the contorol and is little in higher ones. The above inhibitors of TCA cycle are clearly promotive to the root formation in part of the hypocotyl, increasing the maximum number of roots at the optimal concentration of 2, 4-dinitrophenol, azide, cyanide and malonate to 465%, 362%, 408% and 168%, respectively. Monoiodoacetate and sodium fluoride which are concerned with glycolysis as an inhibitor decrease the growth of epicotyl, hypocotyl and root and repress the root initiation. The operation of α, α'-dipyridyl and sodium diethyl dithiocarbamate on the growth of epicotyl, hypocotyl and root and the root formation is almost the same in the case of inhibitors of TCA cycle. The results of the present study indicate that the growth of epicotyl and root is inhibited by inhibitors of TCA cycle and glycolysis and that the root formation is accelerated by the ones of TCA cycle but is supressed by the ones of glycolysis.
福岡女子大学の論文
1974-01-31