Scavenging of soluble organic matter from the prebiotic oceans

  title={Scavenging of soluble organic matter from the prebiotic oceans},
  author={Arie Nissenbaum},
  journal={Origins of life},
  • A. Nissenbaum
  • Published 1 December 1976
  • Environmental Science
  • Origins of life
The existence of hot or cold ‘nutrient broth’ or ‘primeval soup’ is challenged on the basis of the recent geochemistry of soluble organic carbon in the oceans. Most of the dissolved organic carbon is recycled quickly by organisms, but the residual, biologically refractive, organic matter is efficiently scavenged from the oceans (residence time of 1000 to 3500 years) by nonbiologically mediated chemical and physical processes, such as adsorption on sinking minerals, polymerization and… 

Mineral-organic interfacial processes: potential roles in the origins of life.

General concepts in prebiotic mineral-organic interfacial processes, as well as recent advances in the study of mineral surface-organic interactions of potential relevance to understanding the origin of life are reviewed.

Primeval procreative comet pond

  • B. Clark
  • Physics
    Origins of life and evolution of the biosphere
  • 2005
It is speculated that life originated in a small, shallow body of water containing concentrated prebiotic organic feedstocks, inorganic compounds, and catalytic agents in a diversity of microenvironments on a suitable planet with an atmosphere in an appropriate thermodynamic state, such as Earth.

Photosynthesis and photo-stability of nucleic acids in prebiotic extraterrestrial environments.

Results show that H₂O ice plays key roles in the formation of the nucleobases, as an oxidant, as a matrix in which reactions can take place, and as a catalyst that assists proton abstraction from intermediate compounds.

An Evaluation of the Critical Parameters for Abiotic Peptide Synthesis in Submarine Hydrothermal Systems

Investigation of the oligomerization of glycine under SHS–like conditions with respect to the limitations imposed by starting amino acid concentration, heating time, and temperature found that gly3 was undetectable at longer reaction times, and gly2 and DKP were not detected below 150°C.

Adsorption of nucleic acid components on rutile (TiO(2)) surfaces.

The results suggest roles for several nucleic acid functional groups (including sugar hydroxyl groups, the phosphate group, and extracyclic functional groups on the bases) in binding, in agreement with results obtained from studies of other minerals.

Could life have evolved in cometary nuclei?

Concerning viruses, the high specificity of host-parasite relationships and their coevolutionary lines of descent, rule out a cometary origin for them.

The Emergence of Life

The aim of this article is to provide the reader with an overview of the different possible scenarios for the emergence of life, to critically assess them and, according to the conclusions we reach,



On the possible role of organic melanoidin polymers as matrices for prebiotic activity

It is suggested that the prebiotic scenario involved chemical and protoenzymic reactions at the sediment-ocean interface in relatively shallow waters and under conditions not much different from those of the recent environment.

Natural Radiocarbon Activity of the Dissolved Organic Carbon in the North-east Pacific Ocean

THE “age” of the dissolved organic matter in the deep sea relative to its origin in the euphotic zone has been, a matter of conjecture for some time1–3. Photosynthetic fixation of carbon dioxide into

Humic substances from seawater

SINCE the first spectroscopic observation of humic substances in seawater1, it has been presumed that they constitute a considerable fraction of the dissolved organic matter in the sea2–4.

Speculations on the origin and evolution of metabolism

  • H. Hartman
  • Biology
    Journal of Molecular Evolution
  • 2005
The basic conclusion is that metabolism could have evolved from a simple environment rather than from a complex one.