Haliea alexandrii sp. nov., isolated from phycosphere microbiota of the toxin-producing dinoflagellate Alexandrium catenella.

Haliea alexandrii sp. nov., isolated from phycosphere microbiota of the toxin-producing dinoflagellate Alexandrium catenella. Int J Syst Evol Microbiol. 2019 Nov 21;: Authors: Yang Q, Jiang Z, Zhou X, Zhang R, Xie Z, Zhang S, Wu Y, Ge Y, Zhang X Abstract 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+...
Source: International Journal of Systematic and Evolutionary Microbiology - Category: Microbiology Authors: Tags: Int J Syst Evol Microbiol Source Type: research