Micromonospora coriariae sp. nov., isolated from root nodules of Coriaria myrtifolia.

An actinomycete strain, NAR01(T), was isolated from root nodules of a Coriaria plant. The 16S rRNA gene sequence of strain NAR01(T) showed most similarity to the type strains of Micromonospora endolithica (98.94 %) and Micromonospora chersina (98.4 %). The chemotaxonomic results obtained confirmed the taxonomic position of the isolate within the genus Micromonospora, and revealed differences at the species level. Physiological and biochemical tests showed that strain NAR01(T) could be clearly distinguished from its closest phylogenetic neighbours, while DNA-DNA hybridization results indicated that the isolate represents a novel species. On the basis of these results, strain NAR01(T) (=DSM 44875(T)=LMG 23557(T)) is proposed as the type strain of the novel species Micromonospora coriariae sp. nov.