Kandeliimicrobium roseum gen. nov., sp. nov., a new member of the family Rhodobacteraceae isolated from mangrove rhizosphere soil
Wang, Kai-Ling and Song, Zhi-Man and Rong, Cu-Huang and Hao, Ling-Yun and Lai, Qi-Liang and Li, Shuang-Fei and Xu, Ying,, 68, 2158-2164 (2018),
doi = https://doi.org/10.1099/ijsem.0.002773,
publicationName = Microbiology Society,
issn = 1466-5026,
abstract= A Gram-stain-negative, non-flagellated, short rod-shaped bacterium, designated XY-R6T, was isolated from the rhizosphere soil of a mangrove plant, Kandelia candel (L.) Druce, in Mai Po Nature Reserve, Hong Kong. Growth of strain XY-R6T was observed at pH 5.0–9.5 (optimum 6.5–8.0), between 8 and 42 °C (optimum 28–34 °C), and in the presence of 0–9.5 % (w/v) NaCl (optimum 1–4 %). The predominant isoprenoid quinone was ubiquinone-10. The major fatty acids were summed feature 8 (C18 : 1ω6c and/or C18 : 1ω7c) (55.61 %), C19 : 0cycloω8c (21.59 %) and C16 : 0 (11.24 %). The major polar lipids were phosphatidylglycerol, phosphatidylethanolamine, aminolipid, phosphatidylcholine and diphosphatidylglycerol. The genomic DNA G+C content of strain XY-R6T was 69.3 mol%. Phylogenetic analyses, based on 16S rRNA gene sequences, revealed that strain XY-R6T belonged to the family Rhodobacteraceae of the class Alphaproteobacteria and formed a distinct lineage, showing the highest gene sequence similarities to the members of genus Wenxinia (94.5–94.3 %), followed by the genera Profundibacterium (94.3 %), Defluviimonas (93.8–92.5 %), Oceanicola (93.8 %) and Cereibacter (93.7 %). Similarities to other genera within the family Rhodobacteraceae were below 94.0 %. Based on comprehensive phenotypic, phylogenetic and chemotaxonomic characterization, it is indicated that strain XY-R6T represents a novel species of a new genus in the family Rhodobacteraceae , for which the name Kandeliimicrobium roseum gen. nov., sp. nov. is proposed, with XY-R6T (=MCCC 1K01498T=KCTC 52266T=DSM 104294T) as the type strain.,
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