Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Effect of alien ipt gene on hormonal concentrations of plants.

Abstract

Transgenic plants carrying the isopentenyltransferase gene (ipt) and normal tobacco plants (Nicotiana tabacum) were analysed to compare their phytohormone status. Total cytokinin (zeatin, zeatin riboside, isopentenyladenine and isopentenyladenosine) level and free IAA content were always higher in shoots regenerated from transgenic cultures although the concentrations were lower in roots. In transgenic plants, IAA-oxidase activity was lower and the concentration of its protectant chlorogenic acid was increased. Transgenic plants also contained lower concentrations of abscisic acid.