gen. nov., sp. nov., a moderately halophilic bacterium isolated from bioturbated Red Sea mangrove sediment, and proposal of the novel family fam. nov.

Abstract in brief

• The study describes a new, nonmotile, Gram-negative, rod-shaped bacterium called strain R1DC9, isolated from Red Sea mangrove sediments, which grows best at 37°C, pH 8, and 7-9% NaCl, and is proposed as a new species and genus within a newly established family.
• Phylogenetic analyses based on 16S rRNA gene sequences and whole-genome data show that R1DC9 is sufficiently distinct from known bacterial families, leading to the proposal of a new genus, species, and family for this bacterium.
• The bacterium’s unique biochemical features include specific fatty acids, polar lipids, and quinones, supporting its classification as a novel member of a separate phylogenetic lineage within its order and phylum.