Open AccessSpongiactinospora rosea gen. nov., sp. nov., a new member of the family Streptosporangiaceae
Author(s) -
Lei Li,
Yu-Han Gui,
Qi-hang Xu,
Hou-Wen Lin,
Yanhua Lü
Publication year - 2019
Publication title -
international journal of systematic and evolutionary microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 173
eISSN - 1466-5034
pISSN - 1466-5026
DOI - 10.1099/ijsem.0.003165
Subject(s) - biology , 16s ribosomal rna , diamino acid , phylogenetic tree , mycelium , monophyly , spore , strain (injury) , botany , microbiology and biotechnology , galactose , phylogenetics , genomic dna , gene , biochemistry , clade , gene sequence , anatomy
A novel aerobic, spore-forming, marine actinomycete, designated strain LHW63015 T , was isolated from a Craniella marine sponge collected in the South China Sea. The strain formed extensively branched substrate and aerial mycelia which carried long and crooked spore chains composed of ridged spores and spherical pseudosporangia. Strain LHW63015 T contained meso-diaminopimelic acid as the diagnostic diamino acid. Glucose, ribose, mannose, galactose and madurose occured in whole-cell hydrolysates. The predominant polar lipids were hydroxyl-phosphatidylethanolamine, phosphoglycolipid and ninhydrin-positive phosphoglycolipid. MK-10(H4) and MK-10(H6) were the predominant menaquinones. The major fatty acids were 10-methyl C17 : 0 and C17 : 1ω8c. The G+C content of the genomic DNA was 70.8 mol%. In phylogenetic analysis based on 16S rRNA gene sequences, strain LHW63015 T fell within the family Streptosporangiaceae and formed a distinct monophyletic lineage adjacent to the genus Sphaerisporangium, and shared the highest 16S rRNA gene sequence similarity of 96.2 % with Sphaerisporangium album YIM 48782 T . On the basis of the polyphasic evidence, a novel genus and species of the family Streptosporangiaceae, for which the name Spongiactinospora rosea gen. nov., sp. nov., is proposed, with the type strain LHW63015 T (=DSM 106635 T =CCTCC AA 2018019 T ).