<研究報告>ダイズ幼植物切枝の胚軸伸長と発根に及ぼす呼吸阻害剤による処理時期の違いの影響

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The effects of the difference of treated time with various respiratory inhibitors on the hypocotyl elongations and the root formation in the hypocotyl cuttings excised from dark grown 5-day old soybean, have been examined. These inhibitors used in this experiment are 2,4-DNP (10^<-4>M) as uncoupler of oxidative phosphorylation, NaF (5×10^<-3>M) and monoiodoacetate (10^<-4>M) concerned with glycolysis, and NaN_3 (5×10^<-4>M) and KCN (10^<-3>M) concerned with TCA cycle. 2. When the cuttings were treated with other inhibitors, than NaN_3 the suppressions of epicotyl and hypocotyl elongation increased with the increase of treated hours. When these inhibitors were periodically applied to the cuttings at two hours interval during the first day, above inhibitory effects were larger at early treatment in the case of DNP, and at later one in NaF_3. The inhibitions of the root elongation by all respiratory inhibitors became larger with the increase of treated hours. This tendency of the inhibitions was larger in the case of early treatment when other inhibitors than NaF were applied periodically to cuttings during the first day. 4. DNP and NaN_3 promoted the rooting and NaF inhibited it, and this promoting or inhibiting effects increased in propotion to the length of treated hours and increased in the case of early treatment with them during the first day. 5. When IAA and one from among DNP, NaF and NaN_3 were applied alone or together to cuttings at the first day or at the second day, the promoting activity of IAA on the rooting came out more predominant than the action of each inhibitors, and the activity of IAA and each inhibitors was antagonistic in the most cases of the hypocotyl elongations. The interaction between IAA and each inhibitors did not show obvious tendency on the root elongation.
福岡女子大学の論文
1981-01-20

<研究報告>ダイズ幼植物切枝の胚軸伸長と発根に及ぼす呼吸阻害剤による処理時期の違いの影響

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