@article {510946,
	title = {Electron uptake by iron-oxidizing phototrophic bacteria.},
	journal = {Nature Communications},
	volume = {5},
	year = {2014},
	note = {<p>Ac6xzTimes Cited:2Cited References Count:39</p>},
	month = {Feb},
	pages = {1-7},
	abstract = {<p>Oxidation-reduction reactions underlie energy generation in nearly all life forms. Although most organisms use soluble oxidants and reductants, some microbes can access solid-phase materials as electron-acceptors or -donors via extracellular electron transfer. Many studies have focused on the reduction of solid-phase oxidants. Far less is known about electron uptake via microbial extracellular electron transfer, and almost nothing is known about the associated mechanisms. Here we show that the iron-oxidizing photoautotroph Rhodopseudomonas palustris TIE-1 accepts electrons from a poised electrode, with carbon dioxide as the sole carbon source/electron acceptor. Both electron uptake and ruBisCo form I expression are stimulated by light. Electron uptake also occurs in the dark, uncoupled from photosynthesis. Notably, the pioABC operon, which encodes a protein system essential for photoautotrophic growth by ferrous iron oxidation, influences electron uptake. These data reveal a previously unknown metabolic versatility of photoferrotrophs to use extracellular electron transfer for electron uptake.</p>},
	keywords = {atom exchange, co2 fixation, electricity, metabolism, microorganisms, oxidation, reduction, regulatory twist, rhodopseudomonas-palustris cga010, tie-1},
	isbn = {2041-1723},
	author = {Bose, A. and Gardel, E. J. and Vidoudez, C. and Parra, E. A. and Girguis, P. R.}
}
