Agrobacterium rhizogenes
| Agrobacterium rhizogenes | ||||||||||||
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| Scientific name | ||||||||||||
| Agrobacterium rhizogenes | ||||||||||||
| ( AJ Riker et al. 1930) Conn 1942 |
Agrobacterium rhizogenes (recently also Rhizobium rhizogenes (Riker et al. 1930) Young et al. 2001 ) is a plant- pathogenic , gram-negative soil bacterium. It belongs to the alpha class of proteobacteria.
It is related to Agrobacterium tumefaciens and has a similar way of life. In addition to its chromosomal DNA , it contains a plasmid (Ri plasmid). Agrobacterium rhizogenes is able to infect injured plant tissue and transfer the T-DNA (plasmid DNA) into the plant genome. The plant is instructed to develop so-called hair roots that grow out of the infected area. Depending on the bacterial strain, root growth can take place on almost any plant tissue (e.g. also on the flowers). The transfer of the T-DNA also causes the plant to produce opines , which are a source of C and N for the bacterium. The plant itself cannot utilize the opines.
Similar to Agrobacterium tumefaciens , the gene transmission mechanism of Agrobacterium rhizogenes is used in biotechnology to transform plants.
Individual evidence
- ↑ JP Euzéby: List of Prokaryotic names with Standing in Nomenclature. Genus Agrobacterium ( memento April 23, 2008 in the Internet Archive ), accessed June 16, 2008.
swell
- MC Intrieri, M. Buiatti: The horizontal transfer of Agrobacterium rhizogenes genes and the evolution of the genus Nicotiana. In: Mol Phylogenet Evol. 20 (1), Jul 2001, pp. 100-110.
- V. Veena, CG Taylor: Agrobacterium rhizogenes: recent developments and promising applications. In: Vitro Cell.Dev.Biol-Plant. 43, 2007, pp. 383-403.