Abstract
The establishment of grape vineyards in the Midwestern USA is greatly hampered by the use of the herbicide 2,4-D in grain crop fields. The overall goal of this study was to transform 'Chancellor' with the plant expressible bacterial tfd A gene to make it tolerant to 2,4-D. Embryogenic callus was infected and cocultivated with an Agrobacterium construct (LBA4404: pAL4404:: tfd A); transformed callus was selected with kanamycin; kanamycin resistant callus was bulked and transformed cell lines identified by PCR. Three PCRpositive embryogenic callus lines were used to regenerate transgenic plants. Analysis of the plant lines for the presence of the tfd A gene by PCR and southern hybridization confirmed its stable integration in their genomes. Transgenic 'Chancellor' grape plants regenerated from these calli proved to be resistant to up to 10 kg·ha -1 of a commercial ester-formulation of 2,4-D, indicating positive expression of the tfd A gene and affording them protection from 2,4-D injury.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.