HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Supplementary Figure Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Google Scholar Articles by Antunes, A. Articles by da Costa, M. S. PubMed PubMed Citation Articles by Antunes, A. Articles by da Costa, M. S. Agricola Articles by Antunes, A. Articles by da Costa, M. S.

Halorhabdus tiamatea sp. nov., a non-pigmented, extremely halophilic archaeon from a deep-sea, hypersaline anoxic basin of the Red Sea, and emended description of the genus Halorhabdus

¹ Laboratório de Microbiologia, Centro de Neurociências e Biologia Celular, Universidade de Coimbra, 3004-517 Coimbra, Portugal
² Lehrstuhl für Mikrobiologie und Archaeenzentrum, Universität Regensburg, D-93053 Regensburg, Germany
³ Departamento de Zoologia, Universidade de Coimbra, 3004-517 Coimbra, Portugal
⁴ Departamento de Bioquímica, Universidade de Coimbra, 3001-401 Coimbra, Portugal

Correspondence
André Antunes
aantunes{at}cnc.uc.pt

An extremely halophilic archaeon was isolated from a sample of the brine–sediment interface of the Shaban Deep in the northern Red Sea. Phylogenetic analysis of the 16S rRNA gene sequence revealed a close proximity to Halorhabdus utahensis (99.3 %), the sole species of the genus Halorhabdus. Strain SARL4B^T formed non-pigmented colonies and showed optimum growth at 45 °C, in 27 % (w/v) NaCl and at pH 6.5–7.0. This organism utilized a few complex substrates, such as yeast extract and starch, for growth. Strain SARL4B^T grew under anaerobic and microaerophilic conditions but grew extremely poorly under aerobic conditions. The ether lipids were diphytanyl derivatives. The DNA G+C content of the type strain was 61.7 mol%. On the basis of the phylogenetic data and physiological and biochemical characteristics, strain SARL4B^T represents a novel species of the genus Halorhabdus, for which the name Halorhabdus tiamatea is proposed. The type strain is SARL4B^T (=DSM 18392^T=JCM 14471^T). An emended description of the genus Halorhabdus is also proposed.

Polar lipid profiles of Halorhabdus utahensis and strain SARL4B^T, separated by mono-dimensional TLC, are shown in a supplementary figure available with the online version of this paper.

This article has been cited by other articles:

				A. Antunes, F. A. Rainey, G. Wanner, M. Taborda, J. Patzold, M. F. Nobre, M. S. da Costa, and R. Huber A New Lineage of Halophilic, Wall-Less, Contractile Bacteria from a Brine-Filled Deep of the Red Sea J. Bacteriol., May 15, 2008; 190(10): 3580 - 3587. [Abstract] [Full Text] [PDF]