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Updated: Mar 9, 2026

Isolation and Characterization of the Natural Microbiota of the Model Nematode Caenorhabditis elegans
Published on: August 17, 2022
Nonomuraea ceibae sp. nov., an actinobacterium isolated from Ceiba speciosa rhizosphere
Fei Wang1, Jindi Shi1, Yaojian Huang1
1State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, PR China.
Abstract:
Strain XMU 110T, isolated from the rhizosphere soil of a flowering tree, Ceiba speciosa, was characterized by polyphasic taxonomy. Phylogenetic analysis based on 16S rRNA gene comparisons revealed that strain XMU 110T showed the highest similarity of 97.9 % to Nonomuraea jabiensis DSM 45507T, and indicated the closest relatives were Nonomuraearoseoviolaceasubsp.roseoviolacea ATCC 27297T (97.8 % 16S rRNA gene sequence similarity) and Nonomuraea salmonea DSM 43678T (97.4 %) after a neighbour-joining analysis. The phenotypic characteristics, as well as the DNA-DNA relatedness values between strain XMU 110T and N. roseoviolaceasubsp. roseoviolacea ATCC 27297T (48.07±1.99 %) and N. salmonea DSM 43678T (40.55±8.30 %), distinguished the novel strain from its closest phylogenetic neighbours. The morphological, physiological and chemotaxonomic characteristics such as phospholipid type, diagnostic diamino acid of the peptidoglycan, whole-cell sugars, major menaquinones and major fatty acids further supported the assignment of strain XMU 110T to the genus Nonomuraea. The G+C content of the genomic DNA was 66.2 mol%. Based on the taxonomic data, strain XMU 110Trepresents a novel species of the genus Nonomuraea, for which the name Nonomuraea ceibae sp. nov. is proposed. The type strain is XMU 110T (=MCCC 1K03213T= KCTC 39826T).
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