title: Fast-growing root nodule bacteria produce a novel polyamine, aminobutylhomospermidine.
abstract: Polyamines in various root nodule bacteria including Bradyrhizobium japonicum, Rhizobium fredii, R. leguminosarum, R. meliloti and R. loti were identified by capillary gas chromatography. Homospermidine was the polyamine present in highest concentration in all the rhizobia tested. In addition to putrescine and homospermidine, fast-growing type of rhizobial cells contained a novel polyamine, aminobutylhomospermidine, NH2(CH2)4NH(CH2)4NH(CH2)4NH2. The unusual tetraamine was not found in the cells of slow-growing type of rhizobia throughout their growth period, indicating a difference in polyamine metabolism between fast-growing type and slow-growing type of root nodule bacteria.
authors.affiliation: Department of Natural Resources, National Institute of Agro-Environmental Sciences, Tsukuba, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Fujihara
authors.forename: Y
authors.initials: Y
authors.lastname: Harada
mesh_terms: D007887:Fabaceae / Q000382:microbiology; D013058:Mass Spectrometry; D010946:Plants, Medicinal; D012230:Rhizobiaceae / Q000254:growth & development / Q000378:metabolism*; D012231:Rhizobium / Q000254:growth & development / Q000378:metabolism*; D013045:Species Specificity; D013095:Spermidine / Q000031:analogs & derivatives* / Q000302:isolation & purification / Q000378:metabolism
chemical_list: C062052:aminobutylhomospermidine; D013095:Spermidine