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The karyotypic status of three root lines, transformed with Agrobacterium rhizogenes , versus a non-transformed root line of Datura stramonium , as well as grown plants (control), was investigated. In the transformed cultures, the karyotype as well as the number of chromosomes (2 n = 24) remained...
Shoot regeneration was obtained from leaves of in vitro cultures of wild pear genotypes. The highest regeneration rates, ranging from 40% to 64%, depending on the genotype, were obtained using leaves wounded by three cuts transversely to the mid-rib, a Quoirin and Lepoivre macro-salt composition,...