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Rahi , P. and Kurli, R. and Pansare , AN and Khairnar , M. and Jagtap, S. and Patel , NB. and Dastager, SG. and Lawson, PA. and Shouche, YS. (2018) Microbacterium telephonicum sp. nov., isolated from the screen of a cellular phone. India. International Journal of Systematic and Evolutionary Microbiology., 68 (4). pp. 1052-2058.

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A cultivation-based study of the microbial diversity of cellular phone screens led to the isolation of a Gram-stain-positive, aerobic, rod-shaped and non-endospore-forming bacterium, designated S2T63T, exhibiting phenotypic and genotypic characteristics unique to the type strains of closely related species. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the strain is a member of Microbacterium, and most closely related to Microbacterium aurantiacum IFO 15234T and Microbacterium kitamiense Kitami C2T. The DNA-DNA relatedness values of the strain S2T63T to M. aurantiacum KACC 20510T, M. kitamiense KACC 20514Tand Microbacterium laevaniformans KACC 14463T were 65 % (±4), 29.5 % (±3) and 55.9 % (±4), respectively. The genomic DNA G+C content was 71.8 mol%. The major fatty acids were anteiso-C15 : 0, iso-C16 : 0, C16 : 0 and anteiso-C17 : 0. The main polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol and two unidentified polar lipids. The peptidoglycan contained the amino acids glycine, lysine, alanine and glutamic acid, with substantial amounts of hydroxy glutamic acid detected, which is characteristic of peptidoglycan type B1α. The predominant menaquinones were MK-12 and MK-13. Rhamnose, fucose and galactose were the whole-cell sugars detected. The strain also showed biofilm production, estimated by using crystal violet assay. Based on the results of the phenotypic and genotypic characterizations, it was concluded that the new strain represents a novel species of the genus Microbacterium, for which the name Microbacteriumtelephonicum is proposed, with S2T63T (=MCC 2967T=KACC 18715T=LMG 29293T) as the type strain.

Item Type: Article
Depositing User: Mr. Rameshwar Nema
Date Deposited: 23 Dec 2021 12:07
Last Modified: 23 Dec 2021 12:13
URI: http://nccs.sciencecentral.in/id/eprint/189

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