Virulence of different Agrobacterium strains on hairy root formation of Hyoscyamus muticus
1995
Vanhala, L. | Hiltunen, R. | Oksman-Caldentey, K.M.
Hyoscyamus muticus accession was evaluated for its response to inoculation with Agrobacterium rhizogenes strains LBA9402, A4, 15834, and Agrobacterium tumefaciens strain C58 CI pRT GUS104. The Agrobacterium strain used for the transformation has a significant influence on the phenotype of the clone as well as on the growth rate and hyoscyamine production of these root culture clones. The most virulent strains were C58 CI pRT GUS 104 and LBA9402. More roots were obtained on LS0 medium than on B50 medium. Acetosyringone addition and the time from wounding affected root formation. The alkaloid content was highest in clones C58 and A4 (approximately 90 mg.l-1). There are great differences between individual hairy root clones, and hence they are not as uniform as has often been speculated. The Agrobacterium strain used for the transformation has a great influence in this respect.
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