| cytokine induction by lipopolysaccharide (lps) corresponds to lethal toxicity and is inhibited by nontoxic rhodobacter capsulatus lps. | many pathological effects of gram-negative bacteria are produced by their cell wall-derived lipopolysaccharides (lpss). differing pathogenicity of gram-negative lpss, however, may depend on their capacities to induce cytokines. thus, we studied the lethal toxicity of four nonenterobacterial lpss and compared it with their capacity to induce mononuclear cell (mnc)-derived interleukin-1 (il-1), interleukin-6 (il-6), and tumor necrosis factor (tnf). unstimulated mnc did not release these cytokines. ... | 1990 | 2228245 |
| in situ hybridization of two nodule-specific gene products from yellow lupin. | we have applied in situ hybridization technique to examine the expression of two tissue-specific plant genes represented by cdna clones: pln-13 and pln-50 during the symbiosis of lupinus luteus with bradyrhizobium lupini. both genes are expressed in root nodules and their transcripts are restricted to the infected zone of the nodule as revealed with 35s-or 3h-labelled antisense rna probes. the number of grains over bacteroid-containing cells after hybridization with 3h-labelled probes differed d ... | 1994 | 7843467 |
| isolation and classification of a family of cyclin gene homologues in lupinus luteus. | the lupine (lupinus luteus cv. ventus) cdna clones encoding homologues of cyclin (cycb1;2, cycb1;3, cycb1;4) have been isolated from cdna library prepared from roots inoculated with bradyrhizobium lupini. comparison of the deduced amino-acid sequences of cycb1;2, cycb1;3, cycb1;4 and previously described cycb1;1 (deckert et al. 1996, biochimie 78, 90-94) showed that they share 46-65% of identical amino acids. the presence of conserved residues (renaudin et. al., in the plant cell cycle, in the p ... | 1997 | 9241352 |
| morphological changes of rhizobia in peat cultures. | morphological changes that take place in peat cultures of several species of rhizobia were examined. these changes seemed to be associated with enhanced survival of cells in peat and after inoculation onto plastic beads, which were used as a model system for seeds. cell wall changes, in which the periplasmic space appeared to be occluded with electron-dense material, were observed in rhizobium sp. strain su343 and bradyrhizobium lupini wu425 cells after 7 and 14 days in peat, respectively. nutri ... | 2002 | 11872451 |
| revision of the taxonomic status of the species rhizobium lupini and reclassification as bradyrhizobium lupini comb. nov. | the species rhizobium lupini was isolated from lupinus nodules and included in the approved lists of bacterial names in 1980. nevertheless, on the basis of the analysis of the type strain of this species available in dsmz, dsm 30140(t), whose 16s rrna gene was identical to that of the type strain of bradyrhizobium japonicum , r. lupini was considered a later synonym of this species. in this study we confirmed that the strain dsm 30140(t) belongs to the species b. japonicum , but also that it can ... | 2015 | 25609676 |