Proposed title: Iron
and Microbial Life—from the Beginning to the Present Day
Chapter no.: _____________
Author: TS
Magnuson
1.
Introduction
1.1. An
earth history of microbial life with metals
1.2. Overall
biogeochemical significance
1.3. Importance
of Fe transformation on early and present earth
1.4. Evolution
of mechanisms of microbial iron respiration
1.5. Link
to present day processes
2.
The present state of knowledge
2.1.1.
Geobacter
and Shewanella
2.2. Other
microbial systems
2.2.1.
Desulfovibrio,
thermophilic, extremophilic microbes studied thus far
2.3. Methods
for cultivation and study of Fe transforming microbes
2.3.1.
Use of proper substrates-solid vs. soluble Fe
2.3.2.
Biofilm physiology studies
2.4. Genomics
of Fe-transformation
2.4.1.
Methods used in genomic and proteomic studies
2.4.2.
Common genome features among Fe transforming
microbes
2.5. Biochemistry
and physiology of Fe transformation
2.5.1.
Methods applied in the study of
biochemistry/physiology
2.5.2.
The biofilm matrix—a redox active interface
between cells and the mineral substrate
2.5.3.
Redox proteins involved in Fe transformation
2.5.4.
Other potential mechanisms
2.5.4.1.
Shuttles and redox partner bacteria
2.5.5.
Common themes among Fe transforming bacteria
2.6. Areas
of controversy
2.6.1.
Nanowires, membrane vesicles, and the biofilm
matrix
2.6.2.
Gram positive and archaeal systems
3.
The happy consequences of microbial Fe
transformation
3.1. Transformation
and bioremediation of toxic metals
3.2. Cr
and U transformation mechanisms
3.3. Mechanisms
and relatedness to Fe transformation activity
4.
The great beyond—Future directions for research
4.1. Exploration
of extremophilic microbial Fe transformation systems
4.2. Bioremediation
4.3. A
common theme for microbial Fe transformation?
5.
Acknowledgments
6.
References
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