Ethylene and the geotropic response of lateral branches in peanuts (Arachis hypogaea L.)

概要

論文の詳細を見る
The prostrate growth habit of runner-type peanut plants changed when treated with the ethylene-releasing compound CEPA: the horizontal branches became plagiotropically oriented and the plant assumed a bushy form. Treatment with CEPA caused a marked increase in ethylene evolution for about a week, which then decreased to the level of the control. Nevertheless, the branches maintained their newly assumed plagiotropic orientation. Ethylene evolution from isolated branch tips correlated with their age and orientation, being highest in old plagiotropic and lowest in old diatropic branches. Light intensity and quality which caused plagiotropic orientation of branches also caused an increase in ethylene evolution, while ethylene evolution was lowest under light conditions favouring diatropic orientation. Along with the changes to plagiotropic orientation by CEPA, an increase in GA-like substances and a decrease in growth inhibitors was observed in extracts from treated plants.
日本植物生理学会の論文