NDLI: Fatty acid and DNA analyses of Permian bacteria isolated from ancient salt crystals reveal differences with their modern relatives

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Fatty acid and DNA analyses of Permian bacteria isolated from ancient salt crystals reveal differences with their modern relatives

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Acknowledgement

Extremophiles : Volume 9

Extremophiles : Volume 8

Extremophiles : Volume 7

Extremophiles : Volume 6

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Extremophiles : Volume 2

Extremophiles : Volume 1

Fatty acid and DNA analyses of Permian bacteria isolated from ancient salt crystals reveal differences with their modern relatives

Content Provider	Springer Nature Link
Author	Vreeland, Russell H. Rosenzweig, William D. Lowenstein, Tim Satterfield, Cindy Ventosa, Antonio
Copyright Year	2005
Abstract	The isolation of living microorganisms from primary 250-million-year-old (MYA) salt crystals has been questioned by several researchers. The most intense discussion has arisen from questions about the texture and age of the crystals used, the ability of organisms to survive 250 million years when exposed to environmental factors such as radiation and the close similarity between 16S rRNA sequences in the Permian and modern microbes. The data in this manuscript are not meant to provide support for the antiquity of the isolated bacterial strains. Rather, the data presents several comparisons between the Permian microbes and other isolates to which they appear related. The analyses include whole cell fatty acid profiling, DNA–DNA hybridizations, ribotyping, and random amplified polymorphic DNA amplification (RAPD). These data show that the Permian strains, studied here, differ significantly from their more modern relatives. These differences are accumulating in both phenotypic and molecular areas of the cells. At the fatty acid level the differences are approaching but have not reached separate species status. At the molecular level the variation appears to be distributed across the genome and within the gene regions flanking the highly conserved 16S rRNA itself. The data show that these bacteria are not identical and help to rule out questions of contamination by putatively modern strains.
Starting Page	71
Ending Page	78
Page Count	8
File Format	PDF
ISSN	14310651
Journal	Extremophiles
Volume Number	10
Issue Number	1
e-ISSN	14334909
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-08-30
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Permian bacteria Halotolerant Salt Halophilic Ribotyping
Content Type	Text
Resource Type	Article
Subject	Medicine Molecular Medicine Microbiology

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