NDLI: Roseovarius azorensis sp. nov., isolated from seawater at Espalamaca, Azores

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Roseovarius azorensis sp. nov., isolated from seawater at Espalamaca, Azores

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Rajasabapathy, Raju Mohandass, Chellandi Dastager, Syed Gulam Liu, Qing Khieu, Thi-Nhan Son, Chu Ky Li, Wen-Jun Colaco, Ana
Spatial Coverage	Azores
Description	Country affiliation: India Author Affiliation: Rajasabapathy R ( Biological Oceanography Division, CSIR-National Institute of Oceanography, Dona Paula, 403004, Goa, India.)
Abstract	A Gram-negative, motile, non-spore forming, rod shaped aerobic bacterium, designated strain $SSW084^{T},$ was isolated from a surface seawater sample collected at Espalamaca (38°33′N; 28°39′W), Azores. Growth was found to occur from 15 to 40 °C (optimum 30 °C), at pH 7.0–9.0 (optimum pH 7.0) and with 25–100 % seawater or 0.5–7.0 % NaCl in the presence of $Mg^{2+}$ and $Ca^{2+};$ no growth was found with NaCl alone. Colonies on seawater nutrient agar were observed to be punctiform, white, convex, circular, smooth, and translucent. Strain $SSW084^{T}$ did not grow on Zobell marine agar and tryptic soy agar even when seawater supplemented. The major respiratory quinone was found to be Q-10 and the G + C content was determined to be 61.9 mol%. Phylogenetic analysis based on the 16S rRNA gene sequence indicated that strain $SSW084^{T}$ belongs to the genus Roseovarius and that its closest neighbours are Roseovarius tolerans $EL-172^{T},$ Roseovarius mucosus $DFL-24^{T}$ and Roseovarius lutimaris $112^{T}$ with 95.7, 95.4 and 95.3 % sequence similarity respectively. The remaining species of Roseovarius showed <95 % similarity. The polar lipids of strain $SSW084^{T}$ were determined to be phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, an unidentified lipid and one unidentified aminolipid. The major fatty acids identified were identified as $C_{18:1}$ ω7c (52.5 %) and $C_{16:0}$ (13.8 %). On the basis of phenotypic, molecular and chemotaxonomic characteristics, strain $SSW084^{T}$ is considered to represent a novel species of the genus Roseovarius, for which Roseovarius azorensis sp. nov is proposed. The type strain is $SSW084^{T}$ (=KCTC $32421^{T} = MTCC$ $11812^{T}).$
File Format	HTM / HTML
ISSN	00036072
Issue Number	3
Volume Number	105
e-ISSN	15729699
Journal	Antonie van Leeuwenhoek
Language	English
Publisher	Springer
Publisher Date	2014-03-01
Publisher Place	Netherlands
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Microbiology Discipline Immunology Rhodobacteraceae Classification Seawater Microbiology Water Microbiology Azores Fatty Acids Chemistry Molecular Sequence Data Phenotype Phylogeny Rna, Ribosomal, 16s Genetics Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Medicine Molecular Biology Microbiology

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