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A Millimeter Scale Flexural Testing System for Measuring the Mechanical Properties of Marine Sponge Spicules
Published on: October 11, 2017
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Erythrobacter spongiae sp. nov., isolated from marine sponge
Lingping Zhuang1,2, Binbin Lin1,2, Li Xu1,2
1Xiamen Key Laboratory of Marine Medicinal Natural Products Resources, Xiamen Medica College, Xiamen, 361023, PR China.
International Journal of Systematic and Evolutionary Microbiology
|February 13, 2019
Summary
A novel bacterium, Erythrobacter spongiae sp. nov. strain HN-E23T, was discovered in a Chinese sponge. Phylogenetic and genomic analyses confirm it represents a new species within the Erythrobacter genus.
Area of Science:
- Microbiology
- Bacteriology
- Taxonomy
Background:
- Marine sponges are rich sources of novel microorganisms.
- The genus Erythrobacter comprises diverse bacteria with various ecological roles.
Purpose of the Study:
- To taxonomically characterize a novel bacterial isolate, strain HN-E23T, obtained from a marine sponge.
- To determine the phylogenetic position and genomic relatedness of strain HN-E23T within the Erythrobacter genus.
Main Methods:
- Phenotypic characterization including growth conditions, biochemical tests, and fatty acid analysis.
- Phylogenetic analysis based on 16S rRNA gene sequences.
- Genomic analysis including digital DNA-DNA hybridization (dDDH) and average nucleotide identity (ANI).
Main Results:
- Strain HN-E23T exhibited characteristics of the genus Erythrobacter, including Gram-negative, non-motile, pigmented rods.
- Phylogenetic analysis showed strain HN-E23T formed a distinct lineage within the Erythrobacter cluster, with highest 16S rRNA gene similarity to E. aquimixticola JSSK-14T (97.2%).
- Low dDDH (18.8%) and ANI (74.9%) values between strain HN-E23T and E. aquimixticola JSSK-14T indicated they are distinct species. The G+C content was 65.5 mol%.
Conclusions:
- Strain HN-E23T represents a novel species of the genus Erythrobacter.
- The proposed name for this new species is Erythrobacter spongiae sp. nov., with strain HN-E23T as the type strain.
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