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Abstract

The use of algae as feedstock for industrial purposes, such as in bioethanol production, is desirable. During a search for new agarolytic marine bacteria, a novel Gram-stain-negative, strictly aerobic, and agarolytic bacterium, designated as TS8, was isolated from algae in the harbour of the island of Susak, Croatia. The cells were rod-shaped and motile. The G+C content of the sequenced genome was 38.6 mol%. Growth was observed at 11–37 °C, with 0.5–13 % (w/v) NaCl, and at pH 6.0–9.0. The main fatty acids were summed feature 3 (C 6 and/or C 7), summed feature 8 (C 7 and/or C 6), and C. The main respiratory quinone was ubiquinone-8. The major polar lipids were phosphatidylethanolamine and phosphatidylglycerol. Analysis of 16S rRNA gene sequences indicated that the newly isolated strain belongs to the genus . Based on 16S rRNA gene sequence data, strain TS8 is closely related to D2 (95.7 %), YM01 (95.0 %), and Q1 (93.2 %). Digital DNA–DNA hybridization values between TS8 and the other strains were below 25 %. Based on genotypic, phenotypic, and phylogenetic data, strain TS8 represents a new species of the genus , for which the name sp. nov. is proposed. The type strain is TS8 (=DSM 114830=NCIMB 15451).

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/content/journal/ijsem/10.1099/ijsem.0.006361
2024-05-15
2025-06-18
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