Heliorestis Convoluta Sp. Nov., a Coiled, Alkaliphilic Heliobacterium from the Wadi El Natroun, Egypt.
From: Department of Microbiology, Southern Illinois University, Carbondale, IL 62901, USA.
Extremophiles : life under extreme conditions
- Publish Date: Oct 2006
- ISSN: 1431-0651
- Volume: 10
- Issue: 5
- Pages: 403-10
- Medium: Print
- Language: English
- Citation (JAMA): Asao Marie, Jung Deborah O, Achenbach Laurie A, et al. Heliorestis Convoluta Sp. Nov., a Coiled, Alkaliphilic Heliobacterium from the Wadi El Natroun, Egypt.. Extremophiles Oct 2006;10:403-10
Abstract
A morphologically distinct heliobacterium, strain HH, was isolated from Lake El Hamra, a soda lake in the Wadi El Natroun region of northwest Egypt. Strain HH consisted of ring-shaped cells that remained attached after cell division to yield coils of various lengths. Strain HH showed several of the physiological properties of known heliobacteria and grouped in the Heliorestis clade by virtue of its phylogeny and alkaliphily. The closest relative of strain HH was the filamentous alkaliphilic heliobacterium Heliorestis daurensis. However, genomic DNA:DNA hybridization results clearly indicated that strain HH was a distinct species of Heliorestis. Based on its unique phenotypic and genetic properties we describe strain HH here as a new species of the genus Heliorestis, H. convoluta sp. nov.
Mesh Headings (Keywords): Bacteria, DNA, Bacterial, Egypt, Fresh Water, Hydrogen-Ion Concentration, Microscopy, Electron, Scanning, Phylogeny, Water Microbiology
Check for Full Text / PubMed Unique Identifier (PMID): 16628377
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