Sinorhizobium teranga bv. acaciae ORS1073 and Rhizobium sp. strain ORS1001, two distantly related Acacia-nodulating strains, produce similar Nod factors that are O carbamoylated, N methylated, and mainly sulfated.
We have determined the structures of Nod factors produced by strains representative of Sinorhizobium teranga bv. acaciae and the so-called cluster U from the Rhizobium loti branch, two genetically different symbionts of particular Acacia species. Compounds from both strains were found to be similar, i.e., mainly sulfated, O carbamoylated, and N methylated, indicating a close relationship between host specificity and Nod factor structure, regardless of the taxonomy of the bacterial symbiont.
Lorquin
J
J
Laboratoire de Microbiologie, ORSTOM, Institut Francais de Recherche Scientifique pour le Développement en Coopération, Dakar, Sénégal. lorquin@belair.orstom.sn
Lortet
G
G
Ferro
M
M
Mear
N
N
Promé
J C
JC
Boivin
C
C
D001426:Bacterial Proteins / Q000096:biosynthesis* / Q000737:chemistry; D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002849:Chromatography, Gas; D002851:Chromatography, High Pressure Liquid; D007887:Fabaceae / Q000382:microbiology; D008745:Methylation; D008969:Molecular Sequence Data; D009844:Oligosaccharides / Q000737:chemistry; D010946:Plants, Medicinal; D012230:Rhizobiaceae / Q000145:classification / Q000235:genetics / Q000378:metabolism*; D012231:Rhizobium / Q000145:classification / Q000235:genetics / Q000378:metabolism; D013431:Sulfates / Q000378:metabolism; D013559:Symbiosis
D001426:Bacterial Proteins; D009844:Oligosaccharides; D013431:Sulfates