Appl Environ Microbiol. 1997 Mar;63(3):1151-4. doi: 10.1128/aem.63.3.1151-1154.1997.
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.
角黄素(4,4(prm1)-二酮-(β)-胡萝卜素)是由从含羞草属植物的茎瘤中分离出的含细菌叶绿素的橙色和深粉红色着色的棒杆菌菌株产生的主要类胡萝卜素色素。这两个新的色素形成群不同于研究充分的 BTAi1 菌株,后者积累螺旋藻黄素作为唯一的类胡萝卜素。