Actinomarinicola tropica gen. nov. sp. nov., a new marine actinobacterium of the family Iamiaceae, isolated from South China Sea sediment environments

A novel marine actinobacterium, strain SCSIO 58843 T , was isolated from the sediment sample collected from the South China Sea. Strain SCSIO 58843 T was Gram-stain-positive, aerobic and rod shaped. The whole-cell hydrolysis of amino acids contained dd -DAP, alanine, glutamic acid, glycine and aspartic acid. The main menaquinone was MK-9(H 8 ). The major fatty acids were C 17 : 1   ω 8c and C 17 : 0 . The major phospholipids were diphosphatidylglycerol (DPG), phosphatidylinositol (PI), phospatidylcholine (PC) and phosphatidylinositolmannoside (PIM). The G+C content of the genomic DNA was 72.5 %. Phylogenetic analysis of the 16S rRNA gene sequences showed that strain SCSIO 58843 T formed a new lineage in the family Iamiaceae and had the highest similarity of 93.8 % with Iamia majanohamensis DSM 19957 T . Strain SCSIO 58843 T can be distinguished from these known genera in the family Iamiaceae by polyphasic data analyses, and represents a novel genus and novel species, for which Actinomarinicola tropica gen. nov., sp. nov is proposed with the type strain SCSIO 58843 T (=KCTC 49408 T =CGMCC 1.17503 T ).