RRC ID 70940
著者 Yang Q, Feng Q, Zhang BP, Gao JJ, Sheng Z, Xue QP, Zhang XL.
タイトル Marinobacter alexandrii sp. nov., a novel yellow-pigmented and algae growth-promoting bacterium isolated from marine phycosphere microbiota.
ジャーナル Antonie Van Leeuwenhoek
Abstract The marine phycosphere harbors unique cross-kingdom associations with ecological relevance. During investigating the diversity of phycosphere microbiota of marine harmful algal blooms dinoflagellates, a faint yellow-pigmented bacterium, designated as strain LZ-8, was isolated from paralytic shellfish poisoning toxin-producing dinoflagellate Alexandrium catenella LZT09. The new isolate appeared to have growth-promoting potential toward its algal host. Molecular analysis using 16S rRNA gene, housekeeping rpoD gene and whole-genome sequence comparison indicated that strain LZ-8T was a novel gammaproteobacterium of the family Alteromonadaceae. The major fatty acids of strain LZ-8T were C16:0, C18:1 ω9c, C12:0 3-OH, summed feature 3, C16:1 ω9c, C12:0 and summed feature 9. The major isoprenoid quinone was Q-9. Polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, unidentified phospholipid, two unidentified aminolipids and six unidentified polar lipids. The genomic DNA G+C content was 57.36 mol%. Based on genome sequencing, several biosynthetic gene clusters responsible for bacterial biosynthesis of carotenoids and siderophores that may involve in algae-bacterial interactions were identified in the genome of strain LZ-8T. The polyphasic characterization indicated that strain LZ-8T represents a novel Marinobacter species. The name Marinobacter alexandrii sp. nov., type strain LZ-8T (= CCTCC AB 2018386T = KCTC 72198T) is proposed.
巻・号 114(6)
ページ 709-718
公開日 2021-6-1
DOI 10.1007/s10482-021-01551-5
PII 10.1007/s10482-021-01551-5
PMID 33751267
MeSH Bacterial Typing Techniques DNA, Bacterial / genetics Fatty Acids / analysis Marinobacter* Microbiota* Phospholipids / analysis Phylogeny RNA, Ribosomal, 16S / genetics Sequence Analysis, DNA
リソース情報
一般微生物 JCM31416 JCM19398