| [occurrence and distribution of fruiting body-forming myxobacteria in siebengebirge. comparative studies with special reference to characteristic biotypes]. | in the region of the "siebengebirge" near bonn, six characteristic biotopes were studied with respect to the occurrence of fruiting body forming myxobacteria. 23 different species, belonging to the 8 known genera, were found. the number of species in the respective biotopes varied between 6 and 17, the average numbers of species per sampling area were between 2.1 and 10.0. 15 species were found on dung pellets of wild living herbivorous mammals. deciduous forest soils contained 13 species in spr ... | 1979 | 121178 |
| replacement of atcc 25944t, the current type strain of melittangium lichenicola, with atcc 25946. request for an opinion. | it is proposed that the type strain of melittangium lichenicola (thaxter 1892) mccurdy 1971 is atcc 25946 (=dsm 14877), which was originally designated as a reference strain by mccurdy, and not atcc 25944(t), as given in the approved lists. swarm appearance, myxospore morphology and 16s rrna gene sequence data suggest that atcc 25946 is a representative of the species melittangium lichenicola, while strain atcc 25944 is clearly a member of the myxococcus-corallococcus clade. a request for an opi ... | 2008 | 19060095 |
| evolutionary diversity of ketoacyl synthases in cellulolytic myxobacterium sorangium. | the diversity of type i polyketide synthases (pkss) in cellulolytic myxobacterium sorangium was explored by assaying the ketoacyl synthases (kss) in 10 sorangium strains with two degenerate primer sets and 64 different ks fragments were obtained. for their deduced amino acid sequences, eight were identical to three known kss from sorangium and magnetospirillum, while the others showed 54-83% identities to the modular ks domains reported from various microorganisms. parts of the sorangium kss tig ... | 2007 | 16899349 |
| [isolation and identification of myxobacteria]. | this paper reported that the authors isolated large numbers of myxobacteria from more than 100 samples collected in many places of china. more than 400 pure strains were obtained. these strains belonged to 10 genera of myxococcales. the most frequent genera isolated were myxococcus, sorangium, corallococcus, and cystobacter. melittangium was seldom isolated. no chondromyces and haploangium were found. | 2000 | 12549062 |
| melithiazols, new beta-methoxyacrylate inhibitors of the respiratory chain isolated from myxobacteria. production, isolation, physico-chemical and biological properties. | new antibiotic compounds, melithiazols, were isolated from the culture broth of strains of the myxobacteria melittangium lichenicola, archangium gephyra, and myxococcus stipitatus. the compounds belong to the group of beta-methoxyacrylate (moa) inhibitors and are related to the myxothiazols. the melithiazols show high antifungal activity, but are less toxic than myxothiazol a and its methyl ester in a growth inhibition assay with mouse cell cultures. the melithiazols inhibit nadh oxidation by su ... | 1999 | 10580385 |
| the correlation between morphological and phylogenetic classification of myxobacteria. | in order to determine whether morphological criteria are suitable to affiliate myxobacterial strains to species, a phylogenetic analysis of 16s rdnas was performed on 54 myxobacterial strains that represented morphologically 21 species of the genera angiococcus, archangium, chondromyces, cystobacter, melittangium, myxococcus, polyangium and stigmatella, five invalid species and three unclassified isolates. the analysis included 12 previously published sequences. the branching pattern confirmed t ... | 1999 | 10425789 |
| phylogenetic comparison of retron elements among the myxobacteria: evidence for vertical inheritance. | twenty-eight myxobacterial strains, representing members from all three subgroups, were screened for the presence of retron elements, which are novel prokaryotic retroelements encoding reverse transcriptase. the presence of retrons was determined by assaying strains for a small satellite dna produced by reverse transcription called multicopy, single-stranded dna (msdna). an msdna-producing retron appeared to be absent from only one of the strains surveyed. dna hybridization experiments revealed ... | 1995 | 7798147 |
| on the distribution of myxobacteria in the temperate south america (author's transl). | 60 soil samples from southern chile, mainly from forests and grassland, yielded six species of myxobacteria. in forest soils myxococcus coralloides and myxococcus fulvus occur frequently, in grassland soils myxococcus coralloides and archangium gephyra are predominating. myxococcus virescens, melittangium lichenicola, and cytobacter fuscus have been observed rarely. it is pointed out that due to climate factors a high soil acidity causes the low nuber of myxobacter species. a comparison with the ... | 1978 | 27046 |