%0 Journal Article %A Yang, Qiao %A Jiang, Zhiwei %A Zhou, Xin %A Zhang, Ruonan %A Xie, Zhangxian %A Zhang, Shuo %A Wu, Yiru %A Ge, Yaming %A Zhang, Xiaoling %T Haliea alexandrii sp. nov., isolated from phycosphere microbiota of the toxin-producing dinoflagellate Alexandrium catenella %D 2020 %J International Journal of Systematic and Evolutionary Microbiology, %V 70 %N 2 %P 1133-1138 %@ 1466-5034 %R https://doi.org/10.1099/ijsem.0.003890 %K Haliea alexandrii sp. nov %K toxic dinoflagellate %K phycosphere microbiota %K paralytic shellfish poisoning toxins %K Alexandrium catenella %I Microbiology Society, %X A Gram-negative, aerobic, non-motile, non-spore-forming and rod-shaped bacterium, named strain LZ-16-2T, was isolated from the phycosphere microbiota of the paralytic shellfish poisoning toxin-producing marine dinoflagellate Alexandrium catenella LZT09. Strain LZ-16-2T grew optimally at 28 °C at pH 6.5 and with 3 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain LZ-16-2T fell within the genus Haliea and was most closely related to Haliea salexigens DSM 19537T, with which the new isolate exhibited 98.5 % 16S rRNA gene sequence similarity. The major respiratory quinone was Q-8. The predominant cellular fatty acids were C17 : 1  ω8c, summed feature 3 (C16 : 1  ω7c and/or C16 : 1  ω6c), summed feature 8 (C18 : 1  ω7c and/or C18 : 1  ω6c), C17 : 1  ω6c, C11 : 0 3-OH and C17 : 0. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. The average nucleotide identity and in silico DNA–DNA genome hybridization relatedness values between strain LZ-16-2T and its closest relative, H. salexigens DSM 19537T, were 92.8 and 55.1 %, respectively. The DNA G+C content was 61.3 mol%. Differential phenotypic properties and phylogenetic distinctiveness distinguished strain LZ-16-2T from all other members of the genus Haliea . On the basis of the polyphasic characterization, strain LZ-16-2T represents a novel species of the genus Haliea , for which the name Haliea alexandrii sp. nov. is proposed. The type strain is LZ-16-2T (=KCTC 62344T=CCTCC AB2017229T). %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.003890