Transgenic plant with modified physiology, morphology and modified hormone metabolism, tissue cultures of this plant and process for its preparation.

摘要

Transgenic plants with modified physiology, morphology and modified hormone metabolism are described which contain in their genome a) the coding region of the rolA gene, rolB gene, rolC gene, rolA and rolC gene, rolB gene and rolC gene or rolA and rolB gene of the TL-DNA of the Ri-plasmid from Agrobacterium rhizogenes and/or the coding region of the IPT (isopentenyladenosine transferase) gene of the T-DNA of Ti-plasmids from Agrobacterium tumefaciens, said coding region(s) being under the control of its/their natural or a heterologous promotor(s), except for the coding region of the rolC gene, which, if it is not contained in combination with one of the other coding regions in the genome, is under the control of a heterologous promotor; and b) optionally also a selectable marker gene; wherein the coding regions and the marker gene are expressed. Furthermore, tissue cultures are described which contain cells or organs of the transgenic plants and processes for preparing the transgenic plants.