Rubidibacter lacunae gen. nov., sp nov., a unicellular, phycoerythrin-containing cyanobacterium isolated from seawater of Chuuk lagoon, Micronesia SCIE SCOPUS

Cited 11 time in WEB OF SCIENCE Cited 11 time in Scopus
Title
Rubidibacter lacunae gen. nov., sp nov., a unicellular, phycoerythrin-containing cyanobacterium isolated from seawater of Chuuk lagoon, Micronesia
Author(s)
Choi, Dong Han; Noh, Jae Hoon; Lee, Charity M.; Rho, Seungmok
KIOST Author(s)
Choi, Dong Han(최동한)Noh, Jae Hoon(노재훈)Lee, Charity Mijin(이미진)
Publication Year
2008-12
Abstract
A unicellular cyanobacterium, designated KORDI 51-2(T), was isolated from surface seawater of Chuuk lagoon, Micronesia. The cells were wine-coloured rods and emitted red fluorescence under green excitation of an epifluorescence microscope. Thus, morphologically, the strain resembled Synechococcus species. However, based on 16S rRNA gene sequence similarities between strain KORDI 51-2(T) and related strains belonging to cyanobacteria, the novel strain was distantly related to members of the 'Halothece' cluster. However, sequence similarities between strain KORDI 51-2T and members of the 'Halothece' cluster were very low, ranging from 90.7 to 92.1 %, and phylogenetic analyses showed that the strain formed a distinct branch. Therefore, a polyphasic characterization including morphology, physiology and pigment composition was conducted to elucidate the taxonomic position of strain KORDI 51-2(T). The strain grew within a temperature range of 25-35 degrees C and a salinity range of 2-7 %. The optimal temperature and salinity were about 30 degrees C and 5%, respectively. Strain KORDI 51-2(T) contained phycoerythrin, and the dominant carotenoid pigments were zeaxanthin, beta-carotene and echinenone. The DNA G + C content was 60.5 mol%. Based on phylogenetic analysis of the 16S rRNA gene sequence, and the physiological data and pigment compositions, strain KORDI 51-2(T) is considered to represent a new genus and novel species of cyanobacteria for which the name Rubidibacter lacunae gen. nov., sp. nov. is proposed. The type strain is KORDI 51-2(T) (=KCTC 40015(T)=UTEX L2944(T)).
ISSN
1466-5026
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4424
DOI
10.1099/ijs.0.65798-0
Bibliographic Citation
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, v.58, pp.2807 - 2811, 2008
Publisher
MICROBIOLOGY SOC
Subject
DEOXYRIBONUCLEIC-ACID; PHYLOGENY; SEQUENCES; ALIGNMENT; COLUMN; TREES; WATER; SEA
Type
Article
Language
English
Document Type
Article
Publisher
MICROBIOLOGY SOC
Related Researcher
Research Interests

Marine Eco-Environment,Ocean legal regime/ocean policy/Ocean S&T,International Strategic Network,해양환경생태,해양법/해양정책/해양과학,전략적 국제네트워크

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