Cited by 221
Darmstadt University of Applied Sciences
Publishes on Genomics and Phylogenetic Studies, Microbial Natural Products and Biosynthesis, Plant Disease Resistance and Genetics. 9 papers and 538 citations.
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A thorough taxonomic study of the genera Saccharopolyspora and Faenia showed that both of these taxa can be included in one genus. We propose that Faenia rectivirgula be transferred to the genus Saccharopolyspora Lacey and Goodfellow 1975 as Saccharopolyspora rectivirgula (Kurup and Agre 1983) comb. nov. A description of the new Saccharopolyspora species is presented. The type strain is strain DSM 43 747 (= ATCC 33 515). In addition, we propose that Saccharopolyspora hirsuta subsp. taberi Labeda 1987 strain NRRL B-16 173T (T = type strain) be given species status as Saccharopolyspora taberi sp. nov.
Ten strains of thermophilic actinomycetes were isolated from waste and mushroom composts, as well as from the air of compost plants and a refuse incineration plant in Germany. These organisms produce white aerial mycelia and form hyphae with so-called pseudosporangia that fragment into rod-like structures. The organisms have type III cell walls (meso-diaminopimelic acid and whole-cell sugar type C), the phospholipid type is type PII, and mycolic acids are not present. The major menaquinone is MK-9(H4), and the fatty acids are mainly iso- and anteiso-branched fatty acids, hydroxy fatty acids, and 10-methyl-branched fatty acids. The guanine-plus-cytosine content of the DNA is 69 to 73 mol%. The chemotaxonomic markers (especially whole-cell sugar type C) and 16S ribosomal DNA sequence data indicated that these organisms represent a new genus of the order Actinomycetales, for which the name Thermocrispum is proposed. On the basis of phylogenetic and phenotypic data, this new genus is closely related to members of the family Pseudonocardiaceae and related taxa and contains two species: Thermocrispum municipale sp. nov. and Thermocrispum agreste sp. nov. The type species of the genus is T. municipale, with type strain MKD 35 (= DSM 44069), and the type strain of T. agreste is CHB 77 (= DSM 44070).
Representatives of Saccharomonospora viridis (type strain DSM 43017), Saccharomonospora caesia (type strain DSM 43044), and Saccharomonospora internatus (type strain DSM 43671), together with 52 Saccharomonospora isolates from compost, manure, hay, and soil, were characterized by determining morphological, biochemical, and physiological properties, phage sensitivity, antibiotic activity, enzyme and protein patterns (polyacrylamide gel electrophoresis, sodium dodecyl sulfate-polyacrylamide gel electrophoresis), and restriction patterns of chromosomal deoxyribonucleic acids. The type strain of S. internatus proved to be identical to S. viridis, and thus S. internatus should be regarded as a synonym of S. viridis. A total of 16 strains differed significantly from S. viridis and S. caesia and are proposed as members of a new species, Saccharomonospora glauca (type strain, DSM 43769). Since the three species differ in phage sensitivity, production of antibiotic substances, and enzyme, protein, and deoxyribonucleic acid restriction patterns, these properties can be used for reliable species identification.