Amantichitinum ursilacus gen. nov., sp. nov., a chitin-degrading bacterium isolated from soil

Author:

Moß Karin S.1,Hartmann Stefan C.1,Müller Isabell2,Fritz Christina2,Krügener Sven2,Zibek Susanne2,Hirth Thomas21,Rupp Steffen2

Affiliation:

1. Institute for Interfacial Engineering, University of Stuttgart, Nobelstraße 12, 70569 Stuttgart, Germany

2. Fraunhofer Institute for Interfacial Engineering and Biotechnology, Nobelstraße 12, 70569 Stuttgart, Germany

Abstract

A bacterial strain named IGB-41T 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-41T within the class Betaproteobacteria into the family Neisseriaceae together with Silvimonas amylolytica NBRC 103189T, Silvimonas iriomotensis NBRC 103188T and Silvimonas terrae KM-45T 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 C16 : 0, summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1ω7c) and C18 : 1ω7c . Strain IGB-41T was unique in harbouring phosphoaminolipids, aminolipids and glycoaminolipids when compared with Silvimonas amylolytica NBRC 103189T in polar lipid analysis. On the basis of the physiological, phenotypic and genotypic characteristics of strain IGB-41T, 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-41T ( = DSM 23761T = CIP 110167T).

Funder

Neue Enzyme und Verfahren zur Herstellung von biobasierten Produkten durch Integration von biotechnologischen und chemischen Verfahren – BioSysPro

Bundesministerium für Bildung und Forschung

Publisher

Microbiology Society

Subject

General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology

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