Sandaracinobacter neustonicus sp. nov., isolated from the sea surface microlayer in the Southwestern Pacific Ocean, and emended description of the genus Sandaracinobacter

Abstract

A Gram-stain-negative, non-motile, facultatively anaerobic and rod-shaped bacterial strain, designated PAMC 28131T, was isolated from a sea surface microlayer sample in the open water of the Pacific Ocean. Phylogenetic analysis of the 16S rRNA gene sequence of strain PAMC 28131T revealed an affiliation to the genus Sandaracinobacter with the closest species Sandaracinobacter sibiricus RB16-17T (sequence similarity of 98.2 %). Strain PAMC 28131T was able to grow optimally with 0.5–1.0 % NaCl and at pH 6.5–7.0 and 30 °C. The polar lipids were phosphatidylglycerol, phosphatidylethanolamine, two unidentified phospholipids, an unidentified aminolipid, an unidentified glycolipid and an unidentified lipid. The major cellular fatty acids (>10 %) were C18 : 1 ω6c and/or C18 : 1 ω7c, (42.6 %), C17 : 1 ω6c (19.3 %) and C16 : 1 ω6c and/or C16 : 1 ω7c (15.8 %), and the respiratory quinone was Q-10. The genomic DNA G+C content was 65.3 mol%. The phylogenetic, phenotypic and chemotaxonomic data showed that strain PAMC 28131T could be clearly distinguished from S. sibiricus RB16-17T. Thus, strain PAMC 28131T should be classified as representing a novel species in the genus Sandaracinobacter , for which the name Sandaracinobacter neustonicus sp. nov. is proposed. The type strain is PAMC 28131T (=KCCM 43127T=JCM 30734T).

Sandaracinobacteroides sayramensis sp. nov., a yellow-pigmented bacterium isolated from lake water

“…[1, 2]. At the time of writing (October 2022), The genus Sandaracinobacter contains two species: ‘ Sandaracinobacter sibiricus ’ RB16-17 T (formerly Erythromicrobium sibiricum ) and ‘ Sandaracinobacter neustonicus ’ JCM 30734 [3]. They were isolated from freshwater microbial mats in hydrothermal vents and sea microlayer water, respectively.…”

Microaerophilic Activated Sludge System for Ammonia Retention toward Recovery from High-Strength Nitrogenous Wastewater: Performance and Microbial Communities

“…In addition, most of the dominant genera were reportedly inhabited similar to microaerophilic conditions in this study: midas_g_81 (Comamonadaceae), Rhodobacter, Thauera, Comamonas, Acidovorax, and Dokdonella in alternative aerobic/anoxic activated sludge processes, 52 Comamonas, Acidovorax, and Luteimonas in microaerophilic conditions with high organic loading rate, 69,70 and Cloacibacterium and Sandaracinobacter in anaerobic conditions. 71,72 Development of Sulfate-Reducing Bacteria (SRB). SRB was not detected in the MAS systems until day 139 in R1 and day 160 in R2.…”

Complete Genome Sequence of Sandaracinobacter sp. Strain M6, Isolated from a Rocky Mountain in China

“…Currently, the AAP contains two marine genera and six freshwater genera, including Sandaracinobacter ( 1 ). Until now, the genus Sandaracinobacter has contained only two species with valid published names ( 2 , 3 ).…”