Growth Regulating Action of Isoprothiolane in Plants : V. Interactions between RNA, protein synthesis inhibitors and isoprothiolane on adventitious root formation in stem segments of pulse crops

Japanese Journal of Crop Science

Hitoshi SAKA¹  Takashi OHTSUKA¹  Masanori HIKAWA¹ 

关键词: Actinomycin D.;    アクチノマイシンD;    Adventitious root;    アズキ (Phaseolus angularis L.);    Azuki bean (Phaseolus angularis L.);    IAA;    Cycloheximide;    インゲンマメ (Phaseolus vulgaris L.);    シクロヘキシミド;    Kidney bean (Phaseolus vulgaris L.);    不定根;   

DOI  :  10.1626/jcs.59.566

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

Isoprothiolane (diisopropyl-1, 3-dithiolan-2-ylidenmalonate, IPT; FUJIONE(R)) promoted adventitious root formation of kidney bean (Phaseolus vulgaris L.) hypocotyl more than IAA under by the 24h treatment just after the segment preparation. IPT also enhanced rooting in azuki bean (Phaseolus angularis L) epicotyl segments, in which the number of dividing cell in the root primordia increased. Actinomycin D and cycloheximide were examined for their effects on root formation in the presence or absence of pre-treatment with IPT. Cycloheximide at 10-4M completely inhibited rooting of segments when applied for 2h; however, pre-treatment with 5×10-4M IPT alleviated its inhibitory effect. Actinomycin D, on the other hand, did not inhibit rooting at the concentration from 10-8M to 10-5M. There was no interaction between IPT and actinomycin D on rooting. These results may indicate that IPT enhances adventitious root formation in association with the specific protein synthesis for the initiation of root primordia.

【 授权许可】

Unknown