Chryseobacterium solincola sp. nov., isolated from soil

Abstract

A Gram-staining-negative, yellow-pigmented, strictly aerobic bacterium, designated strain 1YB-R12T, was isolated from a soil sample in western Algeria. The novel isolate was heterotrophic, chemoorganotrophic, halotolerant and psychrotolerant. The temperature and pH optima for growth were 28–30 °C and pH 7.3–8. The bacterium tolerated up to 6 % (w/v) NaCl. Cells were non-motile, non-gliding and non-spore-forming, and were characterized by a variable morphological cycle. Flexirubin-type pigments were not detected. 16S rRNA gene sequence analysis showed that strain 1YB-R12Toccupied a distinct lineage within the genusChryseobacteriumand shared highest sequence similarity withChryseobacterium haifenseLMG 24029T(96.5 %). The DNA G+C content of strain 1YB-R12Twas 40.9 mol%. The predominant cellular fatty acids were anteiso-C15 : 0(41.4 %) and iso-C15 : 0(14.4 %). On the basis of phenotypic properties and phylogenetic distinctiveness, strain 1YB-R12Tis considered to represent a novel species of the genusChryseobacterium, for which the nameChryseobacterium solincolasp. nov. is proposed. The type strain is 1YB-R12T(=DSM 22468T=CCUG 55604T).