Emphasis Type="Italic"Ruegeria arenilitoris/Emp

Authors: Sooyeon Park JungHoon Yoon

Publish Date: 2012/06/06

Volume: 102, Issue: 4, Pages: 581-589

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Abstract

A Gramnegative motile and rodshaped bacterial strain GM8T which was isolated from seashore sand around a seaweed farm at Geoje island in South Korea was characterized taxonomically It grew optimally at 30–37 °C at pH 70–80 and in presence of 2  w/v NaCl A neighbourjoining phylogenetic tree based on 16S rRNA gene sequences revealed that strain GM8T joined the cluster comprising the type strains of Ruegeria atlantica and Ruegeria lacuscaerulensis showing 975  sequence similarity by a bootstrap resampling value of 858  It exhibited 16S rRNA gene sequence similarity values of 954–967  to the type strains of the other Ruegeria species Strain GM8T exhibited the highest gyrB sequence similarity value 885  to the type strain of R lacuscaerulensis Strain GM8T contained Q10 as the predominant ubiquinone and C181 ω7c as the predominant fatty acid The polar lipid profile of strain GM8T was similar to that of R atlantica KCTC 12424T The DNA G+C content of strain GM8T was 646 mol and its mean DNA–DNA relatedness values with R atlantica KCTC 12424T and R lacuscaerulensis KCTC 2953T were 18 ± 53 and 10 ± 36  respectively Differential phenotypic properties together with the phylogenetic and genetic distinctiveness demonstrated that strain GM8T is distinguished from other Ruegeria species On the basis of the data presented strain GM8T =KCTC 23960T = CCUG 62412T represents a novel species of the genus Ruegeria for which the name Ruegeria arenilitoris sp nov is proposed

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