Phenotype of Transgenic Tobacco Plants (Nicotiana tabacum cv. Petit Havana SR-1) Expressing 1724orf13 Gene of Agrobacterium rhizogenes strain MAFF301724

Nicotiana tabacum cv. Petit Havana SR-1 transgenic plants expressing ORF13 of Agrobacterium rhizogenes strain MAFF301724 under different promoters displayed plant morphology abnormalities. They were small, with short and variable internodes lengths; leaves were small, asymmetric, rounded, wrinkled and dark green; flowers were short, and irregularly shaped. This phenotype was also exhibited, similar, but not completely the same, to those of hairy root syndrome, indicating that expression of ORF13 influences plant development. Keywords: ORF13, Agrobacterium rhizogenes strain MAFF301724, transgenic plants, morphology abnormalities