Diversity of actinomycetes isolated from Challenger Deep sediment (10,898 m) from the Mariana Trench

Pathom-aree, W. and Stach, J.E.M. and Ward, A.C. and Horikoshi, K. and Bull, A.T. and Goodfellow, M. (2006) Diversity of actinomycetes isolated from Challenger Deep sediment (10,898 m) from the Mariana Trench. Extremophiles, 10 (3). pp. 181-189. ISSN 1431-0651. (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/10.1007/s00792-005-0482-z

Abstract

Thirty-eight actinomycetes were isolated from sediment collected from the Mariana Trench (10,898 m) using marine agar and media selective for actinomycetes, notably raffinose-histidine agar. The isolates were assigned to the class Actinobacteria using primers specific for members of this taxon. The phylogenetic analysis based on 16S rRNA gene sequencing showed that the isolates belonged to the genera Dermacoccus, Kocuria, Micromonospora, Streptomyces, Tsukamurella and Williamsia. All of the isolates were screened for genes encoding nonribosomal peptide and polyketide synthetases. Nonribosomal peptide synthetase sequences were detected in more than half of the isolates and polyketide synthases type I (PKS-I) were identified in five out of 38 strains. The Streptomyces isolates produced several unusual secondary metabolites, including a PKS-I associated product. In initial testing for piezotolerance, the Dermacoccus strain MT1.1 grew at elevated hydrostatic pressures.

Item Type: Article
Additional information: Article 060BK English Times Cited:8 Cited References Count:58
Uncontrolled keywords: Mariana Trench actinomycetes deep-sea 16S rRNA genes phylogenetic analysis NRPS PKSI PKSII Dermacoccus
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Biosciences > Biomedical Research Group
Depositing User: Sue Davies
Date Deposited: 08 Sep 2008 22:35
Last Modified: 14 Jan 2010 14:26
Resource URI: http://kar.kent.ac.uk/id/eprint/7333 (The current URI for this page, for reference purposes)
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