The role of mineral surfaces in the origin of life

1977 ◽  
Vol 8 (1) ◽  
pp. 25-31 ◽  
Author(s):  
V. A. Otroshchenko ◽  
N. V. Vasilyeva
Keyword(s):  
Origin Of Life ◽  
Mineral Surfaces ◽  
The Origin Of Life

scholarly journals The Role of Meteorite Impacts in the Origin of Life

Astrobiology ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 1121-1149 ◽  
Author(s):  
G.R. Osinski ◽  
C.S. Cockell ◽  
A. Pontefract ◽  
H.M. Sapers
Keyword(s):  
Origin Of Life ◽  
Meteorite Impacts ◽  
The Origin Of Life

scholarly journals A Teaching Resource for a Computational Framework of the Value of Information in Origin of Life

2018 ◽  
Author(s):  
soumya banerjee ◽  
joyeeta ghose
Keyword(s):  
Complex Systems ◽  
Origin Of Life ◽  
Value Of Information ◽  
Critical Role ◽  
Computational Framework ◽  
Teaching Resource ◽  
Processing Information ◽  
The Origin Of Life ◽  
Role Of Information

Information plays a critical role in complex biological systems. Complex systems like immune systems andant colonies co-ordinate heterogeneous components in a decentralized fashion. How do these distributeddecentralized systems function? One key component is how these complex systems efficiently processinformation. These complex systems have an architecture for integrating and processing information comingin from various sources and points to the value of information in the functioning of different complexbiological systems. This paper is a teaching resource that explains the role of information processing inquestions around the origin of life and suggests how computational simulations may yield insights intoquestions related to the origin of life.

scholarly journals LIFE AS WE DO NOT KNOW IT

2021 ◽  
Author(s):  
soumya banerjee
Keyword(s):  
Information Processing ◽  
Computational Model ◽  
Origin Of Life ◽  
Critical Role ◽  
Life Forms ◽  
Living Systems ◽  
Computational Simulations ◽  
The Origin Of Life ◽  
Carbon Based

Information plays a critical role in complex biologicalsystems. This article proposes a role for information processing in questions around the origin of life and suggests how computational simulations may yield insights into questions related to the origin of life. Such a computational model of the origin of life would unify thermodynamics with information processing and we would gain an appreciation of why proteins and nucleotides evolved as the substrate of computation andinformation processing in living systems that we see on Earth. Answers to questions like these may give us insights into noncarbon based forms of life that we could search for outside Earth. I hypothesize that carbon-based life forms are only one amongst a continuum of life-like systems in the universe.Investigations into the role of computational substrates that allow information processing is important and could yield insights into:1) novel non-carbon based computational substrates thatmay have “life-like” properties, and2) how life may have actually originated from non-life onEarth. Life may exist as a continuum between non-life and life and we may have to revise our notion of life and how common it is in the universe.Looking at life or life-like phenomena through the lens ofinformation theory may yield a broader view of life.

Emergence of Polygonal Shapes in Oil Droplets and Living Cells: The Potential Role of Tensegrity in the Origin of Life

2018 ◽  
pp. 427-490 ◽  
Author(s):  
Richard Gordon ◽  
Martin M. Hanczyc ◽  
Nikolai D. Denkov ◽  
Mary A. Tiffany ◽  
Stoyan K. Smoukov
Keyword(s):  
Origin Of Life ◽  
Potential Role ◽  
Living Cells ◽  
Oil Droplets ◽  
The Origin Of Life

scholarly journals Experimental fossilisation of viruses from extremophilic Archaea

2011 ◽  
Vol 8 (6) ◽  
pp. 1465-1475 ◽  
Author(s):  
F. Orange ◽  
A. Chabin ◽  
A. Gorlas ◽  
S. Lucas-Staat ◽  
C. Geslin ◽  
...  
Keyword(s):  
Origin Of Life ◽  
Extreme Environments ◽  
Early Earth ◽  
Sulfolobus Islandicus ◽  
Viral Particles ◽  
Rock Record ◽  
Extremophilic Microorganisms ◽  
The Origin Of Life ◽  
Pyrococcus Abyssi

Abstract. The role of viruses at different stages of the origin of life has recently been reconsidered. It appears that viruses may have accompanied the earliest forms of life, allowing the transition from an RNA to a DNA world and possibly being involved in the shaping of tree of life in the three domains that we know presently. In addition, a large variety of viruses has been recently identified in extreme environments, hosted by extremophilic microorganisms, in ecosystems considered as analogues to those of the early Earth. Traces of life on the early Earth were preserved by the precipitation of silica on the organic structures. We present the results of the first experimental fossilisation by silica of viruses from extremophilic Archaea (SIRV2 – Sulfolobus islandicus rod-shaped virus 2, TPV1 – Thermococcus prieurii virus 1, and PAV1 – Pyrococcus abyssi virus 1). Our results confirm that viruses can be fossilised, with silica precipitating on the different viral structures (proteins, envelope) over several months in a manner similar to that of other experimentally and naturally fossilised microorganisms. This study thus suggests that viral remains or traces could be preserved in the rock record although their identification may be challenging due to the small size of the viral particles.

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