Planococcus salinarum sp. nov., isolated from a marine solar saltern, and emended description of the genus Planococcus

Abstract

A Gram-positive, non-motile and coccoid-, short rod- or rod-shaped bacterial strain, ISL-16T, was isolated from a marine solar saltern in Korea and its taxonomic position was investigated using a polyphasic taxonomic approach. Strain ISL-16T grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 2 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain ISL-16T joined the cluster comprising species of the genus Planococcus. Its 16S rRNA gene sequence contained the same signature nucleotides as those defined for the genus Planococcus. Strain ISL-16T exhibited 16S rRNA gene sequence similarity values of 96.9–98.2 % to the type strains of species of the genus Planococcus. Strain ISL-16T contained MK-8 and MK-7 as the predominant menaquinones and anteiso-C15 : 0, C16 : 1 ω7c alcohol and anteiso-C17 : 0 as the major fatty acids. The DNA G+C content was 48.3 mol%. DNA–DNA relatedness values between strain ISL-16T and the type strains of species of the genus Planococcus were 15–28 %. Differential phenotypic properties, together with its phylogenetic and genetic distinctiveness, enabled strain ISL-16T to be differentiated from recognized species of the genus Planococcus. On the basis of the data presented, strain ISL-16T is considered to represent a novel species of the genus Planococcus, for which the name Planococcus salinarum sp. nov. is proposed. The type strain is ISL-16T (=KCTC 13584T=CCUG 57753T). An emended description of the genus Planococcus is also given.

Salinimonas lutimaris sp. nov., a polysaccharide-degrading bacterium isolated from a tidal flat

“…It exhibited slightly higher 16S rRNA gene sequence similarity values (96.6 and 96.5%) to the type strains of Alteromonas hispanica and Alteromonas genovensis than to S. chungwhensis BH030046 T , and 93.7-96.1% sequence similarity to the type strains of the other Alteromonas species. It has been shown that the 16S rRNA gene sequence similarity may not be necessarily consistent with the topology of phylogenetic trees (Nedashkovskaya et al 2006;Xue et al 2006;Yoon et al 2010), as it the case here. S. chungwhensis BH030046 T exhibited 92.2-94.7% 16S rRNA gene sequence similarity to the type strains of Alteromonas species.…”

The Draft Genome of Planococcus donghaensis MPA1U2 Reveals Nonsporulation Pathways Controlled by a Conserved Spo0A Regulon

“…The Planococcaceae family contains independent examples of sporulation loss along the branches leading to Filibacter, Caryophanon, Kurthia, and Planomicrobium/Planococcus (5). Further investigations into this family of bacteria may help unravel the complex sporulation pathway from other mechanisms of stress resistance.…”

Halophilic Microorganisms Are Responsible for the Rosy Discolouration of Saline Environments in Three Historical Buildings with Mural Paintings

“…Further eight isolates (27.6%) were originally found in saline environments, like marine solar salterns ( Planococcus salinarum and Planomicrobium flavidum ) [37], [38], marine sediments ( Kocuria rosea ) [39] or a salt mine ( Marinococcus luteus ) [40], respectively. Planococcus donghaensis , Paracoccus marcusii and Planococcus antarcticus were previously detected in soil material from the Antarctic, from coastal regions in South Korea [41] and in soil of Issyk Kul region in Kyrgyzstan, respectively.…”