Literature DB >> 10489362

Iron isotope biosignatures.

B L Beard1, C M Johnson, L Cox, H Sun, K H Nealson, C Aguilar.   

Abstract

The (56)Fe/(54)Fe of Fe-bearing phases precipitated in sedimentary environments varies by 2.5 per mil (delta(56)Fe values of +0.9 to -1. 6 per mil). In contrast, the (56)Fe/(54)Fe of Fe-bearing phases in igneous rocks from Earth and the moon does not vary measurably (delta(56)Fe = 0.0 +/- 0.3 per mil). Experiments with dissimilatory Fe-reducing bacteria of the genus Shewanella algae grown on a ferrihydrite substrate indicate that the delta(56)Fe of ferrous Fe in solution is isotopically lighter than the ferrihydrite substrate by 1.3 per mil. Therefore, the range in delta(56)Fe values of sedimentary rocks may reflect biogenic fractionation, and the isotopic composition of Fe may be used to trace the distribution of microorganisms in modern and ancient Earth.

Entities:  

Keywords:  NASA Center JPL; NASA Discipline Exobiology

Mesh：

Substances：

Year:  1999        PMID： 10489362     DOI： 10.1126/science.285.5435.1889

Source DB:  PubMed          Journal:  Science        ISSN： 0036-8075            Impact factor:   47.728


  13 in total

1.  Evidence for equilibrium iron isotope fractionation by nitrate-reducing iron(II)-oxidizing bacteria.

Authors:  A Kappler; C M Johnson; H A Crosby; B L Beard; D K Newman
Journal:  Geochim Cosmochim Acta       Date:  2010-05-10       Impact factor: 5.010

2.  Searching for signatures of life on Mars: an Fe-isotope perspective.

Authors:  M Anand; S S Russell; R L Blackhurst; M M Grady
Journal:  Philos Trans R Soc Lond B Biol Sci       Date:  2006-10-29       Impact factor: 6.237

3.  Uranium isotopes fingerprint biotic reduction.

Authors:  Malgorzata Stylo; Nadja Neubert; Yuheng Wang; Nikhil Monga; Stephen J Romaniello; Stefan Weyer; Rizlan Bernier-Latmani
Journal:  Proc Natl Acad Sci U S A       Date:  2015-04-20       Impact factor: 11.205

4.  A biomarker based on the stable isotopes of nickel.

Authors:  Vyllinniskii Cameron; Derek Vance; Corey Archer; Christopher H House
Journal:  Proc Natl Acad Sci U S A       Date:  2009-06-24       Impact factor: 11.205

5.  Evidence for microbial Fe(III) reduction in anoxic, mining-impacted lake sediments (Lake Coeur d'Alene, Idaho).

Authors:  D E Cummings; A W March; B Bostick; S Spring; F Caccavo; S Fendorf; R F Rosenzweig
Journal:  Appl Environ Microbiol       Date:  2000-01       Impact factor: 4.792

6.  Dissimilatory Fe(III) and Mn(IV) reduction by Shewanella putrefaciens requires ferE, a homolog of the pulE (gspE) type II protein secretion gene.

Authors:  Thomas J DiChristina; Charles M Moore; Carolyn A Haller
Journal:  J Bacteriol       Date:  2002-01       Impact factor: 3.490

7.  Nonspecific uptake and homeostasis drive the oceanic cadmium cycle.

Authors:  Tristan J Horner; Renee B Y Lee; Gideon M Henderson; Rosalind E M Rickaby
Journal:  Proc Natl Acad Sci U S A       Date:  2013-01-29       Impact factor: 11.205

8.  A probabilistic framework for identifying biosignatures using Pathway Complexity.

Authors:  Stuart M Marshall; Alastair R G Murray; Leroy Cronin
Journal:  Philos Trans A Math Phys Eng Sci       Date:  2017-12-28       Impact factor: 4.226

9.  A first analysis of metallome biosignatures of hyperthermophilic Archaea.

Authors:  Vyllinniskii Cameron; Christopher H House; Susan L Brantley
Journal:  Archaea       Date:  2012-12-03       Impact factor: 3.273

10.  Re-partitioning of Cu and Zn isotopes by modified protein expression.

Authors:  Anette Büchl; Chris J Hawkesworth; K Vala Ragnarsdottir; David R Brown
Journal:  Geochem Trans       Date:  2008-10-10       Impact factor: 4.737
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