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Abstract

A low-G+C, Gram-positive bacterium, designated CVS-14, was recovered from a sea salt evaporation pond on the island of Sal in the Cape Verde Archipelago. This organism was catalase- and oxidase-positive. Cells were motile, spore-forming aerobic rods, with an optimum growth temperature of about 35–40 °C and optimum pH between 7.0 and 8.5. Optimal growth occurred in media containing 4–6 % (w/v) NaCl, although the organism was able to grow in medium without added NaCl and in medium containing 16 % NaCl. The cell-wall peptidoglycan was of A1 type and the major respiratory quinone was menaquinone 7 (MK-7). Major fatty acids were iso-15 : 0, anteiso-15 : 0, iso-17 : 0 and anteiso-17 : 0. The DNA G+C content was 37.0 mol%. Phylogenetic analysis of the 16S rRNA gene sequence indicated that strain CVS-14 formed a distinct new branch within the radiation of the moderately halophilic bacilli group, forming a separate lineage from species of the genera , , , and . Strain CVS-14 showed 16S rRNA gene pairwise similarity values of ~95 % with species of the genus . On the basis of morphological, physiological, chemotaxonomic and phylogenetic characteristics, strain CVS-14 is considered to represent a novel species in a new genus, for which the name gen. nov., sp. nov. is proposed. The type strain is CVS-14 (=LMG 22839=CIP 108577).

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2007-07-01
2020-09-23
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