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A novel, moderately halophilic actinomycete, strain YIM 90007T, was isolated from a soil sample collected from the Xinjiang Province, China, and characterized. The optimum growth temperature of the strain was between 35 and 37 °C and growth occurred optimally in 10 % (w/v) NaCl. The cell wall of strain YIM 90007T contained meso-diaminopimelic acid. Whole-cell sugars were galactose, arabinose and ribose. The principal menaquinone was MK-9(H4), while MK-9(H2) was found in smaller amounts. The phospholipids were phosphatidylinositol, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine and hydroxyphosphatidylethanolamine. The predominant cellular fatty acids were of the iso- and anteiso-branched and unbranched types; significant amounts of 2-hydroxy fatty acids were also found but 10-methyl-branched fatty acids were missing. The DNA G+C content of strain YIM 900007T was 71 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed strain YIM 90007T to be closely related to Saccharomonospora halophila (98·7 % similarity). DNA–DNA hybridization revealed a relatedness of 53·8 % between strain YIM 90007T and S. halophila DSM 44411T. Based on physiological and biochemical characteristics, phylogenetic analysis (based on 16S rRNA gene sequences) and DNA–DNA relatedness, it is concluded that strain YIM 90007T represents a novel species of the genus Saccharomonospora, for which the name Saccharomonospora paurometabolica (type strain YIM 90007T=CCTCC AA001018T=CCRC 16315T=DSM 44619T) is proposed.
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