Identification of the carotenoid pigment canthaxanthin from photosynthetic Bradyrhizobium strains /Lorquin, Jean /Molouba, Flore /Dreyfus, Bernard PIGMENT CAROTENOIDE NODULE CAULINAIRE IDENTIFICATION DE SUBSTANCE CHIMIQUE CLHP CHROMATOGRAPHIE EXTRACTION Canthaxanthin (4,4'-diketo-beta-carotene) is produced as the major carotenoid pigment by orange- and dark-pink-pigmented bacteriochlorophyll-containing Bradyrhizobium strains isolated from stem nodules of Aeschynomene species. These two new pigmentation groups differ from the well-studied strain BTAi1, which accumulates spirilloxanthin as the sole carotenoid. (Résumé d'auteur) 1997 text https://www.documentation.ird.fr/hor/fdi:010013798 fdi:010013798 Lorquin Jean, Molouba Flore, Dreyfus Bernard. Identification of the carotenoid pigment canthaxanthin from photosynthetic Bradyrhizobium strains. 1997, 63, 1151-1154 EN