C58C1 Chemically Competent Agrobacterium cells are optimized for the highest transformation efficiency and are useful for various applications. The chromosomal background of C58C1 is C58. C58 is cured of the Ti plasmid pTiC58 resulting in C58C1. C58C1 Competent cells may be useful for transgenic operations that involve Arabidopsis and other plants. This Agrobacterium strain is streptomycin and rifampicin resistant. Reagents Included: • C58C1 Chemically Competent Agrobacterium • DNA (pCAMBIA1391z, 500 pg/µl) • Recovery medium