![](/images/graphics-bg.png)
A First Analysis of Metallome Biosignatures of Hyperthermophilic Archaea
Joint Authors
Cameron, Vyllinniskii
House, Christopher H.
Brantley, Susan L.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-03
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
To date, no experimental data has been reported for the metallome of hyperthermophilic microorganisms although their metal requirements for growth are known to be unique.
Here, experiments were conducted to determine (i) cellular trace metal concentrations of the hyperthermophilic Archaea Methanococcus jannaschii and Pyrococcus furiosus, and (ii) a first estimate of the metallome for these hyperthermophilic species via ICP-MS.
The metal contents of these cells were compared to parallel experiments using the mesophilic bacterium Escherichia coli grown under aerobic and anaerobic conditions.
Fe and Zn were typically the most abundant metals in cells.
Metal concentrations for E.
coli grown aerobically decreased in the order Fe > Zn > Cu > Mo > Ni > W > Co.
In contrast, M.
jannaschii and P.
furiosus show almost the reverse pattern with elevated Ni, Co, and W concentrations.
Of the three organisms, a biosignature is potentially demonstrated for the methanogen M.
jannaschii that may, in part, be related to the metallome requirements of methanogenesis.
The bioavailability of trace metals more than likely has varied through time.
If hyperthermophiles are very ancient, then the trace metal patterns observed here may begin to provide some insights regarding Earth's earliest cells and in turn, early Earth chemistry.
American Psychological Association (APA)
Cameron, Vyllinniskii& House, Christopher H.& Brantley, Susan L.. 2012. A First Analysis of Metallome Biosignatures of Hyperthermophilic Archaea. Archaea،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-498172
Modern Language Association (MLA)
Cameron, Vyllinniskii…[et al.]. A First Analysis of Metallome Biosignatures of Hyperthermophilic Archaea. Archaea No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-498172
American Medical Association (AMA)
Cameron, Vyllinniskii& House, Christopher H.& Brantley, Susan L.. A First Analysis of Metallome Biosignatures of Hyperthermophilic Archaea. Archaea. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-498172
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-498172