Sphingobacterium composti sp. nov., isolated from cotton-waste composts

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Abstract
A Gram-negative, strictly aerobic, short rod-shaped, non-motile bacterial strain designated 4M24Twas isolated from cotton-waste compost. Analysis of the 16S rRNA gene sequence of strain 4M24Trevealed that it is a member of the genusSphingobacterium, sharing 88.5–94.5 % sequence similarity with type strains of the genusSphingobacteriumand being most closely related toSphingobacterium daejeonenseTR6-04T(94.5 % sequence similarity) andSphingobacterium mizutaiiATCC 33299T(92.2 % similarity). The major fatty acids of strain 4M24Tgrown on trypticase soy agar medium were summed feature 3 (iso-C15 : 02-OH and/or C16 : 1ω7c; 37.5 %), iso-C15 : 0(29.5 %) and iso-C17 : 03-OH (19.7 %). The G+C content of the genomic DNA was 42.3 mol%. On the basis of phenotypic and genotypic characteristics, strain 4M24Trepresents a novel species of the genusSphingobacterium, for which the nameSphingobacterium compostisp. nov. is proposed. The type strain is 4M24T(=KACC 11313T=DSM 18850T).

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