Photosynthesis and the Origin of Life

@article{Hartman2004PhotosynthesisAT,
  title={Photosynthesis and the Origin of Life},
  author={Hyman Hartman},
  journal={Origins of life and evolution of the biosphere},
  year={2004},
  volume={28},
  pages={515-521}
}
  • H. Hartman
  • Published 2004
  • Biology, Medicine
  • Origins of life and evolution of the biosphere
The origin and evolution of photosynthesis is considered to be the key to the origin of life. This eliminates the need for a soup as the synthesis of the bioorganics are to come from the fixation of carbon dioxide and nitrogen. No soup then no RNA world or Protein world. Cyanobacteria have been formed by the horizontal transfer of green sulfur bacterial photoreaction center genes by means of a plasmid into a purple photosynthetic bacterium. The fixation of carbon dioxide is considered to have… Expand
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Thinking About the Evolution of Photosynthesis
TLDR
The transition from anoxygenic to oxygenic photosynthesis took place when the cyanobacteria learned how to use water as an electron donor for carbon dioxide reduction, and before that, ferrous iron may have been the original source of reducing power. Expand
Evolution of the 3-hydroxypropionate bicycle and recent transfer of anoxygenic photosynthesis into the Chloroflexi
Significance Photosynthesis supports life on our planet; however, we know very little about the origins of this metabolism. Anoxygenic photosynthesis existed prior to the evolution of its more… Expand
‘Evolution of Photosynthesis’ (1970), re-examined thirty years later
  • J. Olson
  • Biology, Medicine
  • Photosynthesis Research
  • 2004
TLDR
The original conviction that the evolution of photosynthesis was intimately connected with the origin of life has been replaced with the realization that photosynthesis may have been invented by the Bacteria after their divergence from the Archea. Expand
From Ionizing Radiation to Photosynthesis
This chapter focuses on the driving forces of the origin and the evolution of the early anoxygenic photosynthesis before the onset of the oxygenic cyanobacterial photosynthesis 2.8–2.4 billion years… Expand
The Symbiontic Nature of Metabolic Evolution
TLDR
A scheme for the evolution of the central metabolism with archaeal as well as eubacterial roots is proposed and a remarkable property of DEB theory for metabolic organization is that organisms of two species that exchange products can together follow a symbiogenic route such that the symbiosis behaves as a new organism that itself follows the DEB rules. Expand
Energetics of the First Life
Life can exist only when supported by energy flow(s). Here, the tentative mechanisms of coupling between the natural energy fluxes and the first life forms are discussed. It is argued that the… Expand
A cytochrome b origin of photosynthetic reaction centers: an evolutionary link between respiration and photosynthesis.
TLDR
It is likely that cytochrome b is the evolutionary precursor for type II reaction Center apoproteins, and a novel "reaction center apoprotein early" hypothesis is proposed to account for the development of photosynthetic reaction center holoproteinins. Expand
Phosphorylation and acylation transfer reactions: Clues to a dual origin of metabolism
  • M. Freire
  • Computer Science, Medicine
  • Biosyst.
  • 2020
TLDR
The proposed overview suggests that phosphorylation and acylation transfer reactions would have arisen independently and forged two distinct chemical systems that provided the phosphorylated and carboxylated intermediates used for the synthesis of the corresponding polymers. Expand
An Alternate Hypothesis for the Origin of Mitochondria
TLDR
This work brings together arguments such as parsimony, timing of evolutionary and geological events, structural and functional similarity of cyanobacterial membranes to both the organellar membranes and molecular evidence based on nucleotide sequence comparisons, so as to create the plausibility of this alternate hypothesis. Expand
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