Catellatospora, a New Genus of the Actinomycetales

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Abstract
Two species of the new genus Catellatospora, belonging to the “actinoplanates” group, are described under the names Catellatospora citrea sp. nov. and Catellatospora ferruginea sp. nov. The organisms of this genus are aerobic and produce nonfragmenting vegetative hyphae and no true aerial mycelium. Short chains of nonmotile spores emerge singly or in tufts from the vegetative hyphae on the surface of agar media. The organisms have meso-diaminopimelic and 3-hydroxydiaminopimelic acids and glycine in the cell walls (a type II cell wall); xylose and arabinose (a pattern D whole-cell sugar); and phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol and phosphatidylinositol mannosides but not phosphatidylcholine (a type PII phospholipid pattern). The major menaquinones in C. citrea and C. ferruginea are MK-9 (H4) and MK-10 (H8), respectively. The guanine-plus-cytosine content of the deoxyribonucleic acids ranges from 70.9 to 71.5 mol%. The type strain of type species C. citrea is strain IFO 14495T (6183-ET), and the type strain of C. ferruginea is strain IFO 14496T (6257-CT).