A succinoglycan-decomposing bacterium,Cytophaga arvensicola sp. nov.

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Abstract
Chemotaxonomic and phenotypic characteristics were investigated in 7 succinoglycan-decomposing bacteria isolated from soil and the rhizospheres of cucumber roots and in 2 segregants originating from them. All the strains were gram-negative and rod-shaped and produced water-insoluble yellow orange pigment. The 2 segregants differed from the original strains in formation of spreading colonies. The fatty acids of the 9 strains were mainly i-C15:0, .DELTA.11 C16:1, 2-OH i-C15:0, 3-OH i-C15:0 and 3-OH i-C17:0. Their DNA compositions ranged from 42.8-46.0%, and a menaquinone system (MK-7) was found. The 9 strains were assigned to the genus Cytophaga, but they differed from the known Cytophaga spp. A new species, C. arvensicola sp. nov., is proposed. The type strain is M64 (= IAM 12650).