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Proteobacteria / Alphaproteobacteria / Rhizobiales / Rhizobiaceae / Allorhizobium

Nitrogen fixing, soil bacteria, Nonsporeforming. Gram negative. Aerobic, having a strictly respiratory type of metabolism with oxygen as the terminal electron acceptor. Relatively fast growing; colonies 0.5–3.0 mm develop in 1–2 days on yeast–mannitol–mineral salts agar, and pronounced turbidity develops after 1–2 days in agitated broth media. Some species of Allorhizobium form an endosymbiotic nitrogen-fixing association with roots of legumes, while others are known to cause crown gall.


Scientific classificatione

Domain: Bacteria

Phylum: Pseudomonadota

Class: Alphaproteobacteria

Order: Hyphomicrobiales

Family: Rhizobiaceae

Genus: Allorhizobium

de Lajudie et al. 1998


"Allorhizobium ampelinum" Kuzmanović et al. 2022

Allorhizobium borbori (Zhang et al. 2011) Mousavi et al. 2016

Allorhizobium oryziradicis (Zhao et al. 2017) Lin et al. 2020

Allorhizobium paknamense (Kittiwongwattana & Thawai 2013) Mousavi et al. 2015

Allorhizobium pseudoryzae (Zhang et al. 2011) Mousavi et al. 2016

Allorhizobium taibaishanense (Yao et al. 2012) Hördt et al. 2020

Allorhizobium terrae Lin et al. 2020

Allorhizobium undicola de Lajudie et al. 1998

Allorhizobium vitis (Ophel and Kerr 1990) Mousavi et al. 2016


de Lajudie P, Laurent-Fulele E, Willems A, Torck U, Coopman R, Collins MD, Kersters K, Dreyfus B, Gillis M. (1998). "Allorhizobium undicola gen. nov., sp. nov., nitrogen-fixing bacteria that efficiently nodulate Neptunia natans in Senegal". Int J Syst Bacteriol. 48 (4): 1277–1290. doi:10.1099/00207713-48-4-1277. PMID 9828428.

Euzéby JP, Parte AC. "Allorhizobium". List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved September 19, 2022.

Mousavi SA, Österman J, Wahlberg N, Nesme X, Lavire C, Vial L, Paulin L, de Lajudie P, Lindström K (2014). "Phylogeny of the Rhizobium–Allorhizobium–Agrobacterium clade supports the delineation of Neorhizobium gen. nov". Syst Appl Microbiol. 37 (3): 208–15. doi:10.1016/j.syapm.2013.12.007. PMID 24581678.

Mousavi SA, Willems A, Nesme X, de Lajudie P, Lindström K (2015). "Revised phylogeny of Rhizobiaceae: proposal of the delineation of Pararhizobium gen. nov., and 13 new species combinations". Syst Appl Microbiol. 38 (2): 84–90. doi:10.1016/j.syapm.2014.12.003. PMID 25595870
Allorhizobium †

Proteobacteria Alphaproteobacteria Rhizobiales Rhizobiaceae L. David Kuykendall, Frank B. Dazzo First published: 14 September 2015