Agrobacteria-Rhizobia Complex

About

Agrobacteria-rhizobia complex (ARC) is a diverse group of plant-associated bacteria in the family Rhizobiaceae. This website is created to provide curated information about these bacteria.
- Based on the expertise of current contributors, the site is more focused on agrobacteria.
Names (https://doi.org/10.1099/ijsem.0.003426)
- Agrobacteria (common name, not italicized)
  - Bacteria that cause (or potentially may cause) crown gall or hairy root disease
  - Have (or can have) tumor-inducing plasmids (pTi)
  - A polyphyletic and heterogeneous group that include many species belonging to several different genera (e.g., Agrobacterium, Allorhizobium, Rhizobium)
- Rhizobia (common name, not italicized)
  - Bacteria that induce nodule formation on a legume host and perform nitrogen fixation
  - The nitrogen fixation function is often associated with symbiotic plasmids (pSym)
  - A polyphyletic and heterogeneous group that include many species belonging to several different genera (e.g., Rhizobium, Neorhizobium)
- Agrobacterium and Rhizobium (genus names, always italicized and capitalized)
  - The meaning and the corresponding biological entities changed multiple times according to taxonomy revisions; often misused