A Gram-staining-positive coccus, designated CC-SPL15-2T, was isolated from the rhizosphere
of Sesuvium portulacastrum. By 16S rRNA gene sequence analysis, it was shown that strain
CC-SPL15-2T belonged to the genus Salinicoccus. The isolate was most closely related to
Salinicoccus hispanicus DSM 5352T (98.3% 16S rRNA gene sequence similarity) and
Salinicoccus roseus DSM 5351T (96.7 %); similarities to all other members of the genus
Salinicoccus were ,96.5 %. In accordance with characteristics of the genus Salinicoccus, the
quinone system was mainly composed of menaquinone MK-6. The polar lipid profile exhibited the
major components diphosphatidylglycerol, phosphatidylglycerol and an unidentified glycolipid.
In the polyamine pattern, spermidine was the predominant compound. The fatty acids were
anteiso-C15 : 0, iso-C15 : 0, iso-C16 : 0 and anteiso-C17 : 0, which supported the affiliation of strain
CC-SPL15-2T to the genus Salinicoccus. DNA–DNA relatedness between strain CC-SPL15-2T
and S. hispanicus CCUG 43288T was 42 and 32% (reciprocal analysis). From these data as well
as from physiological and biochemical tests, a clear differentiation of strain CC-SPL15-2T from S.
hispanicus and other members of the genus Salinicoccus was possible. We propose that strain
CC-SPL15-2T be assigned to a novel species, with the name Salinicoccus sesuvii sp. nov. The
type strain is CC-SPL15-2T