Abstract:
A method for producing herbicide-resistant sugar beet plant comprising the steps of: -obtaining protoplasts from stomatal guard cells isolated from a sugar beet plant; -applying to the cellsa composition comprising an ALS herbicide at a concentration which is lethal to the said cells; and -regenerating sugar beet plants from the surviving cells.
Abstract:
The invention relates to genetically modified TGB- 3 viral sequences suitable to induce gene silencing. In particular, hairpin constructs based on such sequences proved highly efficient to induce a PTGS mechanism and degradation of the whole of RNA2 thereby. When plants are transformed accordingly, the spread of the virus in the plant is significantly reduced or blocked. The invention relates of the hairpin constructs, their use and to plants, plant cells and plant tissues harboring these constructs.
Abstract:
The present invention is related to a method for the transformation of sugar beet protoplasts comprising the steps of: – obtaining protoplasts from stomatal guard cells isolated from a sugar beet plant, - transforming the protoplasts with a nucleic acid construct comprising a nucleotide sequence of interest and a selection marker sequence, - applying to an in vitro culture of said protoplasts, one or more ALS inhibitors at a concentration that is lethal to the in vitro culture of the protoplasts and - regenerating sugar beet plants from the surviving protoplasts having integrated the nucleic acid construct comprising the sequence of interest and the selection marker sequence, wherein the selectionmarker sequence is the mutated BvALS113 sequence carrying in its sequence a mutation at amino acid 113 position from Alanine to Tyrosine.
Abstract:
Method for the transformation of sugar beet protoplasts comprising the step of: –obtaining protoplasts from stomatal guard cells isolated from a sugar beet plant, -transforming said protoplasts with a nucleic acid construct comprising a nucleotide sequence of interest and Transcription Activator-Like Effector Nucleases (TALEN) or one or more vectors comprising sequences encoding these Transcription Activator-Like Effector Nucleases (TALEN)sequences, wherein these TALEN target and process a target sequence and replace this target sequence through homologous recombination with the nucleic acid construct comprising the nucleotide sequence of interest, -possibly applying to an in vitroculture of these protoplasts, a medium that is toxic, preferably lethal to the in vitroculture of the protoplasts, and -regenerating sugar beet plants from the cell culture, preferably from the surviving protoplasts having integrated the nucleic acid construct comprising the sequence of interest that possibly renders the transformed cell resistant to the toxic activity of the applied medium.
Abstract:
The present invention is related to a method for the transformation of sugar beet protoplasts comprising the step of: – obtaining protoplasts from stomatal guard cells isolated from a sugar beet plant, - transforming said protoplasts with a nucleic acid construct comprising a nucleotide sequence of interest and a marker sequence, - applying to an in vitro culture of said protoplasts, one or more ALS inhibitors at a concentration that is lethal to the in vitro culture of the protoplasts and - regenerating sugar beet plants from the surviving protoplasts having integrated the nucleic acid construct comprising the sequence of interest and the selectable marker sequence where the selectable marker sequence is the mutated BvALS113 sequence carrying in its sequence a mutation at amino acid 113 position from Alanine to Tyrosine.