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. 1987 Feb;73(4):523-30.
doi: 10.1007/BF00289189.

Hairy root transformation in alfalfa (Medicago sativa L.)

L Spanò  1 , D Mariotti, M Pezzotti, F Damiani, S Arcioni
Affiliations

Hairy root transformation in alfalfa (Medicago sativa L.)

L Spanò et al. Theor Appl Genet. 1987 Feb.

Abstract

The widely cultivated forage legume alfalfa (Medicago sativa L.) was transformed with the agropine type Agrobacterium rhizogenes NCPPB 1855. Sterile root and callus cultures were derived from tumorous hairy roots which were easily obtained independent of the plant variety or genotype. Plant regeneration, via somatic embryogenesis, was achieved only when a selected alfalfa line, characterized by high regenerative capability, was utilized. Genetic transformation was confirmed by the presence of agropine and T-DNA. Phenotypic alterations, mainly affecting the root system, were observed in transformed plants. The possibility that T-DNA-induced variations could be useful in the improvement of M. sativa is discussed.

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