Expression of foreign genes in sunflower (Helianthus annuus L.) — evaluation of three gene transfer methods

Autor: Roberte Bronner, Günther Hahne, Reiner Hunold, Ana Maria Bravo-Angel, Hélène Laparra, Monique Burrus, Brigitte Damm
Rok vydání: 1995
Předmět:
Zdroj: Developments in Plant Breeding ISBN: 9789401041591
DOI: 10.1007/978-94-011-0357-2_7
Popis: Suitable sunflower tissues and cells were transformed either by direct gene transfer into protoplasts, particle bombardment, or Agrobacterium co-culture. While all techniques allowed efficient short-term or transient expression of the introduced gene(s) in the respective tissues, stable transformation was only observed after transformation with Agrobacterium. The latter technique was suitable for the production of transgenic callus from seedling cotyledons and occasional shoots with chimaeric expression of the transgene. Detailed analysis of the interaction of Agrobacterium with this explant showed that infection efficiency was critically dependent on the co-culture conditions, and that the preferentially-transformed cells were not the ones competent for regeneration.
Databáze: OpenAIRE