Description of Stieleria mannarensis sp. nov., isolated from a marine sponge, and proposal to include members of the genus Roseiconus in the genus Stieleria.

ABSTRACT: A pink-coloured, salt- and alkali-tolerant strain, JC639^T, was isolated from a specimen of the marine sponge Spheciospongia sp. The novel isolate is motile, aerobic and forms oval to pear-shaped cells. It shares the highest 16S rRNA gene sequence identity with Stieleria neptunia Enr13^T and Stieleria maiorica Mal15^T in the family Pirellulaceae (phylum Planctomycetota). Optimum pH and temperature for growth are 8.0 (range 7.0-10.0) and 25 °C (range 10-30 °C), respectively. Major fatty acids are C_15:1ω8c, C_16:0, C_18:1ω9c, C_18:0, and C_16:1ω7c/C_16:1ω6c. Major polar lipids are phosphatidylcholine and phosphatidylethanolamine. The genome of strain JC639^T has a size of 9.56 Mb and a DNA G 

SUBMITTER: Kallscheuer N 

PROVIDER: S-EPMC12254169 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature