Combined characterization of a new member of Marivita cryptomonadis strain LZ-15-2 isolated from cultivable phycosphere microbiota of highly toxic HAB dinoflagellate Alexandrium catenella LZT09
文献类型： 外文期刊
作者： Zhou, Xin 1 ; Zhang, Xiao-Ai 2 ; Jiang, Zhi-Wei 3 ; Yang, Xi 3 ; Zhang, Xiao-Ling 1 ; Yang, Qiao 1 ;
作者机构： 1.Zhejiang Ocean Univ, ABI Grp GPM Project, Dept Marine Chem, Coll Marine Sci & Technol, Zhoushan 316022, Peoples R China
2.Guangdong Acad Agr Sci, Guangdong Key Lab Crop Germplasm Resources Preser, Agrobiol Gene Res Ctr, Guangzhou 510640, Peoples R China
3.Guangdong Acad Agr Sci, Inst Anim Sci,Maoming Branch,Guangdong Lab Lingna, Key Lab Anim Nutr & Feed Sci South China,Guangdon, Minist Agr & Rural Affairs,State Key Lab Livestoc, Guangzhou 510640, Peoples R China
4.Shanghai Ocean Univ, Syst Biol Lab, Shanghai 201306, Peoples R China
关键词： Phycosphere microbiota; Alexandrium catenella LZT09 Marine HAB dinoflagellates; Paralytic shellfish poisoning; toxins; Algae– bacteria interactions
期刊名称：BRAZILIAN JOURNAL OF MICROBIOLOGY （ 影响因子：2.428； 五年影响因子：2.719 ）
ISSN： 1517-8382
年卷期： 2021 年 52 卷 2 期
页码：
收录情况： SCI
摘要： During our conveying the microbial structures of phycosphere microbiota (PM) derived from diverse marine harmful algal bloom (HAB) dinoflagellates, a new rod-sharped, white-colored cultivable bacterial strain, designated as LZ-15-2, was isolated from the PM of highly toxic Alexandrium catenella LZT09. Phylogenetic analysis of 16S rRNA gene sequence indicated that strain LZ-15-2 belonged to the genus Marivita within the family Rhodobacteraceae, and demonstrated the highest gene similarity of 99.2% to M. cryptomonadis CL-SK44(T), and less than 98.65% with other type strains of Marivita. Phylogenomic calculations on average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values between the new isolate and M. cryptomonadis CL-SK44(T) were 99.86% and 99.88%, respectively. Genomic comparison of strain LZ-15-2 with available genomes of Marivita species further verified its taxonomic position within the genus of Marivita. Moreover, comparative genomics analysis showed a proximal similarity of strain LZ-15-2 with M. cryptomonadis CL-SK44(T), and it also revealed an open pan-genome status based on constructed gene accumulation curves among Marivita members with 9,361 and 1,712 genes for the pan- and core-genome analysis, respectively. Based on combined polyphasic taxonomic characteristics, strain LZ-15-2 represents a new member of M. cryptomonadis, and proposed as a potential candidate for further exploration of the detailed mechanisms governing the dynamic cross-kingdom algae-bacteria interactions (ABI) between PM and their algal host LZT09.
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