Octopinic acid is an opine found in crown gall tissue of Scorzonera root infected with Agrobacterium tumefaciens. Octopinic acid, octopine and lysopine, but not histopine, induce conjugative activity of the octopine Ti plasmid of A. tumefaciens strain B6S3. Some fungi are known to catabolise octopinic acid to provide their sole source of carbon and nitrogen.
- Presence of a new amino acid in the tissue of crown gall. Menage A & Morel G. Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales 1965, 159, 561.
- Fungal catabolism of crown gall opines. Beauchamp C.J. et al. Applied Environ. Microbiol. 1990, 56, 150.
- Regulation of the transfer of TI plasmids of Agrobacterium tumefaciens. Hooykaas P.J.J. et al. J Gen Microbiol. 1979, 110, 99.