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Int J Syst Evol Microbiol. 2010 Aug;60(Pt 8):1765-9. doi: 10.1099/ijs.0.016840-0. Epub 2009 Sep 11.

Chryseobacterium arthrosphaerae sp. nov., isolated from the faeces of the pill millipede Arthrosphaera magna Attems.

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Institut für Angewandte Mikrobiologie, Universität Giessen, Giessen, Germany.


A bacterial strain (CC-VM-7T), isolated from the faeces of the pill millipede Arthrosphaera magna Attems collected in India, was studied to determine its taxonomic allocation. Cells stained Gram-negative and were rod-shaped. Comparative analyses of the 16S rRNA gene sequence of the strain with those of the most closely related species clearly suggested allocation to the genus Chryseobacterium, with the highest sequence similarities of 99.2% to Chryseobacterium gleum CCUG 14555T, 98.6% to Chryseobacterium indologenes CCUG 14556T and 98.4% to Chryseobacterium aquifrigidense KCTC 12894T. 16S rRNA gene sequence similarities to all other species of the genus Chryseobacterium were below 98%. The major whole-cell fatty acids were iso-C15:0 and iso-C17:1omega9c. DNA-DNA hybridization resulted in relatedness values of only 29.6% (reciprocal 31.3%) to Chryseobacterium gleum CCUG 14555T, 41.2% (reciprocal 38.8%) to C. indologenes CCUG 14556T and 35.4% (reciprocal 38.5%) to C. aquifrigidense KCTC 12894T. DNA-DNA relatedness, biochemical and chemotaxonomic properties clearly show that strain CC-VM-7T represents a novel species, for which the name Chryseobacterium arthrosphaerae sp. nov. is proposed. The type strain is CC-VM-7T (=CCUG 57618T =CCM 7645T).

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