Dastager, S.G. and Mawlankar, R. and Krishnamurthi , S. and Ramana, V.V. and Tang, S.K. and Joseph , N. and Shouche, Y.S. (2014) Rhodococcus enclensis sp. nov., a novel member of the genus Rhodococcus. 2014 Aug;64(Pt 8):2693-9. , 64 (8). pp. 2693-2696.

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Abstract

A novel actinobacterial strain, designated, NIO-1009(T), was isolated from a marine sediment sample collected from Chorao Island, Goa, India. Phylogenetic analysis comparisons based on 16S rRNA gene sequences between strain NIO-1009(T) and other members of the genus Rhodococcus revealed that strain NIO-1009(T) had the closest sequence similarity to Rhodococcus kroppenstedtii DSM 44908(T) and Rhodococcus corynebacterioides DSM 20151(T) with 99.2 and 99.1%, respectively. Furthermore, DNA-DNA hybridization results showed that R. kroppenstedtii DSM 44908(T) and R. corynebacterioides DSM 20151(T) were 39.5 (3.0%) and 41.7 (2.0%) with strain NIO-1009(T), respectively, which were well below the 70% limit for any novel species proposal. Phylogenetically strain NIO-1009(T) forms a stable clade with and R. kroppenstedtii DSM 44908(T) and R. corynebacterioides DSM 20151(T) with 100% bootstrap values. Strain NIO-1009(T) contained meso-diaminopimelic acid as the diagnostic diamino acid and galactose and arabinose as the cell wall sugars. The major fatty acids were C(16 : 0), C(18 : 1)ω9c, C(16 : 1)(ω6c and/or ω7c) and 10-methyl C(18 : 0). The only menaquinone detected was MK-8(H2), while the major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol, phosphatidylinositol mannoside and one unknown phospholipid. The G+C content of the genomic DNA was 66.9 mol%. The phenotypic and genotypic data showed that strain NIO-1009(T) warrants recognition as a novel species of the genus Rhodococcus for which the name Rhodococcus enclensis sp. nov., is proposed; the type strain is NIO-1009(T) ( = NCIM 5452(T) = DSM 45688(T)).

Item Type:	Article
Subjects:	Insect Molecular Biology
Depositing User:	Mr. Rameshwar Nema
Date Deposited:	21 Dec 2016 07:45
Last Modified:	21 Dec 2016 07:45
URI:	http://nccs.sciencecentral.in/id/eprint/354

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