Yang Qiao, Zhang Xiaoling, Li Lingzhi, Zhang Ruonan, Feng Lijuan, Mu Jun
Laboratory of Marine Environment & Ecology, College of Marine Science & Technology, Zhejiang Ocean University, Zhoushan, 316022, People's Republic of China.
East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, 200090, People's Republic of China.
Antonie Van Leeuwenhoek. 2018 Jun;111(6):995-1000. doi: 10.1007/s10482-017-0996-2. Epub 2017 Dec 12.
During an investigation of the biodiversity of the cultivable bacterial community associated with paralytic shellfish poisoning toxin-producing marine dinoflagellate, Alexandrium minutum a novel algal-associated bacterium, designated strain AT2-A was isolated. 16S rRNA gene sequence similarity analysis showed that the strain is a member of the genus Ponticoccus, with high sequence similarity to Ponticoccus litoralis DSM 18986 (97.9%) and Ponticoccus lacteus JCM 30379 (96.0%). However, based on the data obtained for the physiological and biochemical characteristics, and low level of DNA-DNA relatedness analysis, the strain could be genotypically and phenotypically differentiated from two type strains of the genus Ponticoccus. Therefore, this algal-associated bacterial strain is concluded to represent a novel species of the genus Ponticoccus, for which the name Ponticoccus alexandrii sp. nov. is proposed. The type strain is AT2-AT (CCTCC AB 2016296T = KCTC 62340T) [corrected].
在对与产麻痹性贝类中毒毒素的海洋甲藻微小亚历山大藻相关的可培养细菌群落的生物多样性进行调查期间，分离出了一种新型的与藻类相关的细菌，命名为AT2-A菌株。16S rRNA基因序列相似性分析表明，该菌株是Ponticoccus属的成员，与海滨Ponticoccus DSM 18986（97.9%）和乳状Ponticoccus JCM 30379（96.0%）具有高度序列相似性。然而，根据所获得的生理生化特征数据以及低水平的DNA-DNA相关性分析，该菌株在基因型和表型上可与Ponticoccus属的两个模式菌株区分开来。因此，得出结论，这种与藻类相关的细菌菌株代表Ponticoccus属的一个新物种，为此提出Ponticoccus alexandrii sp. nov.这一名称。模式菌株为AT2-AT（CCTCC AB 2016296T = KCTC 62340T）[已修正]。
