Rhizobium lupini

U. B. Briefer, H. J. Burkhardt, W. Klipp, and A. Piihler, ISRl, an insertion element isolated from the soil bacterium Rhizobium lupini. Cold Spring Harbor Symp. Quant. Biol. 45 87 (1980). 

Bicyclic Carotenoids. A major pigment of the bacterium Rhizobium lupini, 2,3,2, 3 -di-/rans-tetrahydroxy-/3,j8-caroten-4-one (9), is the first natural carotenoid to be described with oxygen substituents at positions 2, 3, and 4 of the ring. Also present were 2,3,2 (or 3 )-trihydroxy-/3, -caroten-4-one, (10) or (11),... 

New Structures and Stereochemistry.—New Carotenoid Structures. A mutant strain of Rhizobium lupini contains a new nor-carotenoid, 2, 3 -trans-dihydroxy-2-nor-/3,/3-carotene-3,4-dione (1)." The wild-type R. lupini, when cultured in the presence of the cyclization inhibitors nicotine or CPTA, produced three new monocyclic carotenoids, 2,3-h-ans-dihydroxy-/3,-caroten-4-one (2), 3-hydroxy-/3,(/ -caroten-4-one (3), and p,tf/-carotene-2,3-trans-dio (4)," which were characterized by m.s. and n.m.r. The light absorption and mass spectra of a carotenoid from Rhodopseudomonas capsulata allowed its identification" as demethylspheroidenone [l-hydroxy-3,4-didehydro-l,2,7, 8 -tetrahydro- /f,(/f-caroten-2-one (5)]. 

Gagnon H, Ibrahim RK. Aldonic acids a novel family of nod gene inducers of Mesorhizobium loti, Rhizobium lupini, and Sinorhizobium meliloti. Mol. Plant-Microbe Interact. 1998 11 988-998. 

FIGURE 22.2 (a) Lupin root with Rhizobium lupini nodules (b) lupin sprout (c) seed... 

Rhizobium lupini All common L-amino acids except for leucine, D-glucose, D-mannitol... 

Kleinig, H., W. Heumann, W. Meister, and G. Englert New carotenoids from Rhizobium lupini. Helv. Chim. Acta 60,254 (1977). 

Rhizobium lupini Lupinus Lupine Slow Subpolar... 

Legumes + rhizobium (leguminosarum, trifolii, phaseoli, meliloti, lupini, japonicum, cowpea rhizobia)... 

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