RT Journal Article SR Electronic(1) A1 Kaewkla, Onuma A1 Franco, Christopher M. M.YR 2011 T1 Actinopolymorpha pittospori sp. nov., an endophyte isolated from surface-sterilized leaves of an apricot tree (Pittosporum phylliraeoides) JF International Journal of Systematic and Evolutionary Microbiology, VO 61 IS 11 SP 2616 OP 2620 DO https://doi.org/10.1099/ijs.0.029579-0 PB Microbiology Society, SN 1466-5034, AB A member of the genus Actinopolymorpha, designated PIP 143T, was isolated from the leaves of an Australian native apricot tree (Pittosporum phylliraeoides). The isolate was a Gram-reaction-positive, aerobic actinobacterium, with a well-developed substrate mycelium that fragmented into small rods. Phylogenetic evaluation based on 16S rRNA gene sequences placed the isolate in the family Nocardioidaceae. Strain PIP 143T was most closely related to Actinopolymorpha cephalotaxi I06-2230T (98.7 %) and Actinopolymorpha rutila YIM 45725T (98.1 %). Chemotaxonomic data, including cell-wall components, menaquinones and fatty acids, confirmed the affiliation of strain PIP 143T to the genus Actinopolymorpha. Phylogenetic analysis and physiological and biochemical studies, in combination with DNA–DNA hybridization studies, allowed the differentiation of strain PIP 143T from its closest phylogenetic neighbours with validly published names. Therefore, a novel species is proposed, with the name Actinopolymorpha pittospori sp. nov. The type strain is PIP 143T ( = DSM 45354T  = ACM 5288T  = NRRL B-24810T)., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.029579-0