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. 1997 Mar;63(3):1151-4.
doi: 10.1128/aem.63.3.1151-1154.1997.

Identification of the carotenoid pigment canthaxanthin from photosynthetic bradyrhizobium strains

J Lorquin, F Molouba, B L Dreyfus

Identification of the carotenoid pigment canthaxanthin from photosynthetic bradyrhizobium strains

J Lorquin et al. Appl Environ Microbiol. 1997 Mar.

Abstract

Canthaxanthin (4,4(prm1)-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.

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