Paenibacillus algicola sp. nov., a novel alginate lyase-producing marine bacterium

A Gram-stain-variable, facultatively anaerobic, endospore-forming, rod-shaped bacterium, designated HB172198^T, was isolated from brown alga collected at Qishui Bay, Hainan, PR China. Phylogenetic analysis of 16S rRNA gene sequences indicated that strain HB172198^T belonged to the genus Paenibacillus, and the closest phylogenetically related species was Paenibacillus lemnae NBRC 109972^T (97.6% similarity). The other 16S rRNA gene sequence similarities were under 97.0%. The whole genome average nucleotide identity value between strain HB172198^T and the closest type strain was 75.3% and the in silico DNA-DNA hybridization value was 20.2%. The predominant isoprenoid quinone was menaquinone 7 and the major fatty acids were anteiso-C_15:0, C_16:0, anteiso-C_17:0, iso C_16:0 and C_16:1 ω11c. The combined phylogenetic relatedness, phenotypic and genotypic features supported the conclusion that strain HB172198^T represents a novel species of the genus Paenibacillus, for which the name Paenibacillus algicola sp. nov. is proposed. The type strain is HB172198^T (=CGMCC 1.13583^T=JCM 32683^T).