| taxonomic heterogeneity within the planctomycetales as derived by dna-dna hybridization, description of rhodopirellula baltica gen. nov., sp. nov., transfer of pirellula marina to the genus blastopirellula gen. nov. as blastopirellula marina comb. nov. and emended description of the genus pirellula. | ninety-seven strains of budding bacteria originating from various aquatic habitats and morphologically resembling planctomycetes were investigated taxonomically. taxonomic differentiation was based on dna-dna hybridization, physiological properties and chemotaxonomic tests. nineteen hybridization groups, containing 79 of the tested strains, were established. eighteen strains, however, did not fit into any of these groups. rhodopirellula baltica gen. nov., sp. nov. is described, with strain sh 1t ... | 2004 | 15388712 |
| phylogenetic and metabolic diversity of planctomycetes from anaerobic, sulfide- and sulfur-rich zodletone spring, oklahoma. | we investigated the phylogenetic diversity and metabolic capabilities of members of the phylum planctomycetes in the anaerobic, sulfide-saturated sediments of a mesophilic spring (zodletone spring) in southwestern oklahoma. culture-independent analyses of 16s rrna gene sequences generated using planctomycetes-biased primer pairs suggested that an extremely diverse community of planctomycetes is present at the spring. although sequences that are phylogenetically affiliated with cultured heterotro ... | 2007 | 17545322 |
| fosmids of novel marine planctomycetes from the namibian and oregon coast upwelling systems and their cross-comparison with planctomycete genomes. | planctomycetes are widely distributed in marine environments, where they supposedly play a role in carbon recycling. to deepen our understanding about the ecology of this sparsely studied phylum six planctomycete fosmids from two marine upwelling systems were investigated and compared with all available planctomycete genomic sequences including the as yet unpublished near-complete genomes of blastopirellula marina dsm 3645(t) and planctomyces maris dsm 8797(t). high numbers of sulfatase genes (4 ... | 2007 | 18043661 |
| different planctomycetes diversity patterns in latitudinal surface seawater of the open sea and in sediment. | the 16s rrna gene approach was applied to investigate the diversity of planctomycetes in latitudinal surface seawater of the western pacific ocean. the results revealed that the pirellula-rhodopirellula-blastopirellula clade dominated the planctomycetes community at all surface seawater sites while the minority genera gemmata and planctomyces were only found at sites h5 and h2 respectively. although the clone frequency of the prb clade seemed stable (between 83.3% and 94.1%) for all surface seaw ... | 2008 | 18545964 |
| broad-spectrum antibiotic resistance of planctomycetes organisms determined by etest. | the in vitro susceptibility of planctomycetes organisms to antibiotics has seldom been studied and when it has, a variety of methods have been used. the objective of the study was to expand the knowledge of planctomycetes antibiotic susceptibility patterns. | 2010 | 20699245 |
| Planctomycetes diversity associated with macroalgae. | Planctomycetes associated with 12 macroalgae from the north coast of Portugal were isolated, using an improved method. A total of 138 isolates were found to comprise 10 operational taxonomic units (OTUs), with 65% of the strains being closely related to the species Rhodopirellula baltica. The other strains are probably new species or genera related to Rhodopirellula, Blastopirellula and Planctomyces. Some of the OTUs isolated are unique and have never been found before in previous studies. Catal ... | 2011 | 21726244 |
| development, evaluation and application of tripeptidyl-peptidase ii sequence signatures. | tripeptidyl-peptidase ii (tpp ii) is a cytosolic peptidase that has been implicated in fat formation and cancer, apparently independent of the enzymatic activity. in search for alternative functional regions, conserved motifs were identified and eleven signatures were constructed. seven of the signatures covered previously investigated residues, whereas the functional importance of the other motifs is unknown. this provides directions for future investigations of alternative activities of tpp ii ... | 2009 | 19467630 |
| whole-genome reciprocal blast analysis reveals that planctomycetes do not share an unusually large number of genes with eukarya and archaea. | the genome sequences of rhodopirellula baltica, formerly pirellula sp. strain 1, blastopirellula marina, gemmata obscuriglobus, and kuenenia stuttgartiensis were used in a series of pairwise reciprocal best-hit analyses to evaluate the contested evolutionary position of planctomycetes. contrary to previous reports which suggested that r. baltica had a high percentage of genes with closest matches to archaea and eukarya, we show here that these planctomycetes do not share an unusually large numbe ... | 2006 | 17021241 |