Intact Genomics (ig) Thymidine-Auxotrophic EHA105DThy Agrobacterium Chemically Competent Cells include modifications so that they will not grow unless 50 mg/L of thymidine is added to Minimal medium. This prevents the bacteria from overgrowing plant tissues when used for plant transformation. Thymidine-Auxotrophic EHA105DThy Chemically Competent Agrobacterium cells are optimized for the highest transformation efficiencies. The EHA105DThy strain is useful for transgenic operations of rice, tobacco and other plants. EHA105DThy– thyA knockout mutant derived from EHA105D, itself as an atsD knockout mutant derived from EHA105, a derivative of A281 (A136/pTiBo542).Benefits: Thymidine Auxotrophic as well as an atsD knockout mutant Enables development of more efficient transformation systems Reduced bacterial overgrowth during co-cultivation Decreased need for antibiotics