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, 63 (Pt 1), 98-103

Amantichitinum Ursilacus Gen. Nov., Sp. Nov., a Chitin-Degrading Bacterium Isolated From Soil

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Amantichitinum Ursilacus Gen. Nov., Sp. Nov., a Chitin-Degrading Bacterium Isolated From Soil

Karin S Moß et al. Int J Syst Evol Microbiol.

Abstract

A bacterial strain named IGB-41(T) was isolated from a soil sample from an ant hill near Stuttgart, Germany. The strain was Gram-negative, rod-shaped, motile and facultatively anaerobic. Phylogenetic analysis based on 16S rRNA grouped the strain IGB-41(T) within the class Betaproteobacteria into the family Neisseriaceae together with Silvimonas amylolytica NBRC 103189(T), Silvimonas iriomotensis NBRC 103188(T) and Silvimonas terrae KM-45(T) as the closest relatives with sequence similarities of 96.7, 96.6 and 96.1 %, respectively. The G+C content of the genomic DNA was determined to be 61.5 mol% and quinone analysis revealed Q-8 as the only detectable quinone. Major cellular fatty acids were identified as C(16 : 0), summed feature 3 (iso-C(15 : 0) 2-OH and/or C(16 : 1)ω7c) and C(18 : 1)ω7c . Strain IGB-41(T) was unique in harbouring phosphoaminolipids, aminolipids and glycoaminolipids when compared with Silvimonas amylolytica NBRC 103189(T) in polar lipid analysis. On the basis of the physiological, phenotypic and genotypic characteristics of strain IGB-41(T), we suggest that the novel strain should be assigned to a new genus Amantichitinum and novel species Amantichitinum ursilacus. The type species of the genus Amantichitinum is Amantichitinum ursilacus and the type strain is IGB-41(T) (=DSM 23761(T) =CIP 110167(T)).

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