Agrobacterium tumefaciens -Mediated Transformation of Maize Embryos Using a Standard Binary Vector System
Citations Over TimeTop 10% of 2002 papers
Abstract
We have achieved routine transformation of maize (Zea mays) using an Agrobacterium tumefaciens standard binary (non-super binary) vector system. Immature zygotic embryos of the hybrid line Hi II were infected with A. tumefaciens strain EHA101 harboring a standard binary vector and cocultivated in the presence of 400 mg L-1 L-cysteine. Inclusion of L-cysteine in cocultivation medium lead to an improvement in transient beta-glucuronidase expression observed in targeted cells and a significant increase in stable transformation efficiency, but was associated with a decrease in embryo response after cocultivation. The average stable transformation efficiency (no. of bialaphos-resistant events recovered per 100 embryos infected) of the present protocol was 5.5%. Southern-blot and progeny analyses confirmed the integration, expression, and inheritance of the bar and gus transgenes in R0, R1, and R2 generations of transgenic events. To our knowledge, this represents the first report in which fertile, stable transgenic maize has been routinely produced using an A. tumefaciens standard binary vector system.
Related Papers
- → Agrobacterium-mediated gene transfer: recent advancements and layered immunity in plants(2022)47 cited
- → Effect of exogenous calcium on Agrobacterium tumefaciens -mediated gene transfer in Hevea brasiliensis (rubber tree) friable calli(2000)55 cited
- → Susceptibility of Common and Tepary Beans to Agrobacterium spp. Strains and Improvement of Agrobacterium-mediated Transformation Using Microprojectile Bombardment(1996)39 cited
- → A Really Useful Pathogen, Agrobacterium tumefaciens(2012)10 cited
- Transformation of HBsAg gene into tobacco mediated by Agrobacterium tumefaciens(2009)