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 tables 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 Citing Articles via Google Scholar Google Scholar Articles by Reddy, G. S. N. Articles by Shivaji, S. Search for Related Content PubMed PubMed Citation Articles by Reddy, G. S. N. Articles by Shivaji, S. Agricola Articles by Reddy, G. S. N. Articles by Shivaji, S.

Psychrophilic pseudomonads from Antarctica: Pseudomonas antarctica sp. nov., Pseudomonas meridiana sp. nov. and Pseudomonas proteolytica sp. nov.

¹ Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad – 500 007, India
² Department of Environmental and Information Science, Otsuma Women's University, Tamashi, Tokyo 206, Japan
³ DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Mascheroder Weg 1b, D-38124 Braunschweig, Germany

Correspondence
Sisinthy Shivaji
shivas{at}ccmb.res.in

Thirty-one bacteria that belonged to the genus Pseudomonas were isolated from cyanobacterial mat samples that were collected from various water bodies in Antarctica. All 31 isolates were psychrophilic; they could be divided into three groups, based on their protein profiles. Representative strains of each of the three groups, namely CMS 35^T, CMS 38^T and CMS 64^T, were studied in detail. Based on 16S rRNA gene sequence analysis, it was established that the strains were related closely to the Pseudomonas fluorescens group. Phenotypic and chemotaxonomic characteristics further confirmed their affiliation to this group. The three strains could also be differentiated from each other and the closely related species Pseudomonas orientalis, Pseudomonas brenneri and Pseudomonas migulae, based on phenotypic and chemotaxonomic characteristics and the level of DNA–DNA hybridization. Therefore, it is proposed that strains CMS 35^T (=MTCC 4992^T=DSM 15318^T), CMS 38^T (=MTCC 4993^T=DSM 15319^T) and CMS 64^T (=MTCC 4994^T=DSM 15321^T) should be assigned to novel species of the genus Pseudomonas as Pseudomonas antarctica sp. nov., Pseudomonas meridiana sp. nov. and Pseudomonas proteolytica sp. nov., respectively.

The GenBank/EMBL/DDBJ accession numbers for the 16S rDNA sequences of strains CMS 35^T, CMS 38^T and CMS 64^T are AJ537601, AJ537602 and AJ537603, respectively.

Tables showing the fatty acid composition of and DNA–DNA relatedness data for the novel pseudomonads are available as supplementary material in IJSEM Online.

This article has been cited by other articles:

				P. K. Pindi, K. H. Kishore, G. S. N. Reddy, and S. Shivaji Description of Leifsonia kafniensis sp. nov. and Leifsonia antarctica sp. nov. Int J Syst Evol Microbiol, June 1, 2009; 59(6): 1348 - 1352. [Abstract] [Full Text] [PDF]

				G. S. N. Reddy, S. R. Prabagaran, and S. Shivaji Leifsonia pindariensis sp. nov., isolated from the Pindari glacier of the Indian Himalayas, and emended description of the genus Leifsonia Int J Syst Evol Microbiol, September 1, 2008; 58(9): 2229 - 2234. [Abstract] [Full Text] [PDF]

				N. Bozal, M. J. Montes, and E. Mercade Pseudomonas guineae sp. nov., a novel psychrotolerant bacterium from an Antarctic environment Int J Syst Evol Microbiol, November 1, 2007; 57(11): 2609 - 2612. [Abstract] [Full Text] [PDF]

				U. Behrendt, A. Ulrich, P. Schumann, J.-M. Meyer, and C. Sproer Pseudomonas lurida sp. nov., a fluorescent species associated with the phyllosphere of grasses Int J Syst Evol Microbiol, May 1, 2007; 57(5): 979 - 985. [Abstract] [Full Text] [PDF]