| molecular phylogeny of the genus frankia and related genera and emendation of the family frankiaceae. | the members of the actinomycete genus frankia are nitrogen-fixing symbionts of may species of woody dicotyledonous plants belonging to eight families. several strains isolated from diverse actinorhizal plants growing in different geographical areas were used in this study. the phylogenetic relationships of these organisms and uncharacterized microsymbionts that are recalcitrant to isolation in pure culture were determined by comparing complete 16s ribosomal dna sequences. the resulting phylogene ... | 1996 | 8573482 |
| modestobacter multiseptatus gen. nov., sp. nov., a budding actinomycete from soils of the asgard range (transantarctic mountains). | oligotrophic pygv medium, inoculated with soils from linnaeus terrace (1600 m, antarctica), yielded four aerobic actinomycetes with short rods, multiple and irregular septa and often motile buds. cells were 1.0-2.8 x 1.0-3.0 microm and colonies were beige to pink. the isolates were nearly identical in physiological and biochemical tests. three strains grew from 0 degrees c to 25-28 degrees c, but one was psychrophilic with a maximum growth temperature of 20 degrees c. carbon sources utilized wer ... | 2000 | 10826821 |
| biodiversity of geodermatophilaceae isolated from altered stones and monuments in the mediterranean basin. | an investigation was made into the occurrence and biodiversity of geodermatophilaceae on 78 samples of altered stone surfaces from 24 monuments and natural stones in the mediterranean basin; it was found that the total microbial counts ranged between 0 and 10(7) cfu g(-1) dry weight. members of the geodermatophilaceae family were isolated from 22 of the 78 samples examined, with the incidence of geodermatophilaceae colonies in the cultivable population ranging from 1% to 100%. the highest percen ... | 2001 | 11553237 |
| blastococcus saxobsidens sp. nov., and emended descriptions of the genus blastococcus ahrens and moll 1970 and blastococcus aggregatus ahrens and moll 1970. | ten gram-positive, aerobic bacterial strains with coccoid cells occurring singly, in pairs, tetrads and small aggregates were isolated from the surface of marble and calcareous stones. the peptidoglycan contained meso-diaminopimelic acid as the diagnostic diamino acid. the major menaquinone was mk-9(h4). the cellular fatty acid pattern consisted mainly of iso-branched chain components. according to their phylogenetic position, the organisms are members of the family geodermatophilaceae, clusteri ... | 2004 | 14742489 |
| design and application of two oligonucleotide probes for the identification of geodermatophilaceae strains using fluorescence in situ hybridization (fish). | bacteria of the family of geodermatophilaceae are actively involved in the decay processes [urzì, c. and realini, m. (1998) int biodeterior biodegrad 42: 45-54; urzì, c., salamone, p., schumann, p., and stackebrandt, e. (2000) int j syst evol microbiol 50: 529-536] of stone monuments. characterization of isolates includes phenotypic, chemotaxonomic and genetic analysis often requiring long-term procedures. the use of specific probes for members of geodermatophilaceae family could be useful for t ... | 2004 | 15186346 |
| quadrisphaera granulorum gen. nov., sp. nov., a gram-positive polyphosphate-accumulating coccus in tetrads or aggregates isolated from aerobic granules. | a gram-positive bacterium, designated strain ag019(t), was isolated by micromanipulation from aerobic granules obtained from a laboratory-scale sequencing batch reactor. this isolate grew axenically as cocci clustered predominantly in tetrads, and was morphologically similar to the dominant organisms observed in the biomass. the morphology also resembled that of the tetrad-forming organisms commonly seen in activated sludge samples. strain ag019(t) was found to be an oxidase-negative, catalase-p ... | 2005 | 16166665 |
| real-time pcr for the detection and quantification of geodermatophilaceae from stone samples and identification of new members of the genus blastococcus. | real-time pcr (rt-pcr) technology was used for the specific detection and quantification of members of the family geodermatophilaceae in stone samples. differences in the nucleotide sequences of the 16s rrna gene region were used to design a pair of family-specific primers that were used to detect and quantify by rt-pcr dna from members of this family in stone samples from different geographical origins in spain. these primers were applied later to identify by pcr-specific amplification new memb ... | 2006 | 16391063 |
| geodermatophilaceae fam. nov., a formal description. | the family name 'geodermatophilaceae' was first published by normand et al. (1996) to contain the genera geodermatophilus and blastococcus, but a formal description and the designation of the type genus were not included, thus making the name invalid. since then, the genus modestobacter has been described as a member of the family 'geodermatophilaceae' by mevs et al. (2000). we hereby formally describe the family 'geodermatophilaceae' which includes the recently described genus modestobacter. th ... | 2006 | 17012547 |
| blastococcus jejuensis sp. nov., an actinomycete from beach sediment, and emended description of the genus blastococcus ahrens and moll 1970. | a novel actinomycete, strain kst3-10(t), was isolated from sand sediment of a beach in jeju, korea, and was subjected to polyphasic taxonomic characterization. the organism produced circular, smooth, translucent, apricot-coloured colonies comprising coccoid- or rod-shaped cells. phylogenetic analyses based on 16s rrna gene sequences showed that the organism belonged to the family geodermatophilaceae and consistently formed a distinct sub-branch outside the radiation of the genus blastococcus. th ... | 2006 | 17012568 |
| isolation, diversity, and antimicrobial activity of rare actinobacteria from medicinal plants of tropical rain forests in xishuangbanna, china. | endophytic actinobacteria are relatively unexplored as potential sources of novel species and novel natural products for medical and commercial exploitation. xishuangbanna is recognized throughout the world for its diverse flora, especially the rain forest plants, many of which have indigenous pharmaceutical histories. however, little is known about the endophytic actinobacteria of this tropical area. in this work, we studied the diversity of actinobacteria isolated from medicinal plants collect ... | 2009 | 19648362 |
| esterase as an enzymatic signature of geodermatophilaceae adaptability to sahara desert stones and monuments. | to assess esterase profiling of members of geodermatophilaceae isolated from desert stones and monuments in tunisia and egypt. | 2010 | 19878364 |
| abundance and community of snow bacteria from three glaciers in the tibetan plateau. | bacterial abundance and diversity in snow of east rongbuk, laohugou and hailuogou glaciers on the tibetan plateau were investigated through epifluorescence microscope and denaturing gradient gel electrophoresis. cell abundance ranged from 4.0 x 10(3) to 290.2 x 10(3) cells/ml. the phylogenetic trees placed the 16s rrna sequences in four major groups: proteobacteria, firmicutes, actinobacteria and bacteroidetes. brevundimonas, flavobacterium, hymenobacter, bacillus, polaromonas, rhodoferax and st ... | 2010 | 21174974 |