Arabidopsis ecotypes and mutants that are recalcitrant to Agrobacterium root transformation are susceptible to germ-line transformation - PubMed (original) (raw)
Arabidopsis ecotypes and mutants that are recalcitrant to Agrobacterium root transformation are susceptible to germ-line transformation
K S Mysore et al. Plant J. 2000 Jan.
Free article
Abstract
Germ-line transformation (vacuum infiltration) is frequently used to transform Arabidopsis thaliana using Agrobacterium tumefaciens. We have recently identified several Arabidopsis ecotypes and T-DNA-tagged mutants that are recalcitrant to Agrobacterium-mediated transformation of cut root segments. Some of these ecotypes and mutants are deficient in their ability to bind bacteria. Some are deficient in T-DNA integration. We report here that using a germ-line transformation protocol we transformed these ecotypes and mutants, including attachment- and integration-defective Arabidopsis plants, with a frequency similar to that of highly susceptible wild-type plants. However, we could not transform otherwise highly susceptible Arabidopsis plants by germ-line or root transformation using several vir and attachment-deficient Agrobacterium mutants. These results indicate that certain plant factors important for transformation may exist in germ-line tissue but may be lacking in some somatic cells.
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