[PDF] Biochemical Evolution And The Origin Of Life Proceedings Of The International Conference eBook

Author : J. Oró
Publisher : Springer Science & Business Media
Page : 503 pages
File Size : 42,73 MB
Release : 2013-04-17
Category : Science
ISBN : 9401511187

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This publication, in two volumes, includes most of the scientific papers presented at the first meeting of the International Society for the Study of the Origin of Life (lSSOL), held on June 25-28, 1973 in Barcelona, Spain. The first volume contains the invited articles and the second volume the contributed papers, which also appear in the 1974 and 1975 issues, respectively, of the new journal Origins of Life, published by D. Reidel. A relatively large number of meetings on the subject of the origin of life have been held in different places since 1957. In terms of its organization, scope, and number and nationality of participants, the Conference celebrated last year in Barcelona closely followed the three international conferences held earlier in Moscow, U.S.S.R., 1957, Wakulla Springs, U.S.A., 1963, and Pont-a-Mousson, France, 1970. For this reason the first ISSOL meeting was also named the 4th International Conference on the Origin of Life.

Author : Julian Chela-Flores, PhD
Publisher : A. Deepak Publishing
Page : 332 pages
File Size : 15,81 MB
Release : 1992-12-31
Category : Science
ISBN : 093719431X

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This book addresses some important open questions in this interdisciplinary field of research. In spite of its broad scope, ranging from the earliest evidence of life on earth to the search for extraterrestrial intelligence, the main focus is on chemical evolution. Once the macromolecules of life were formed, the evolution of the earliest life forms enhanced the importance of chirality. This led to the highly asymmetric environment of the macromolecules of the living cell the hallmark of life itself. The subject of chirality, in particular, is discussed in depth: the status of the weak force as the only true chiral influence is presented. A substantial number of papers review both the theoretical as well as the experimental basis of the origin of biochirality. A second broad area discussed in detail is the RNA world. Some successes of this hypothesis are highlighted; the hierarchy of previous evolutionary stages leading to the origin of life, such as the pyrophosphate world, are considered. The question is raised whether useful hints may still be inferred from molecular fossils existing in contemporary cells. Contents The Origin, Evolution, and Distribution of Life in the Universe C. Ponnamperuma Chemical Origin and Early Evolution of Biological Energy Conversion H. Baltscheffsky Phosphate in Models for Chemical Evolution G. Arrhenius, B. Gedulin and Mojzsis Evolution in an RNA World P. Schuster Small Pathogenic RNAs of Plants: Living Fossils of the RNA World? T.O. Diener The Weak Force and the Origin of Life A.J. MacDermott The Origin of Chirality, the Role of Phase Transitions and Their Induction in Amino Acids A. Salam Spontaneous Regulating Mechanisms That May Have Led to the Origin of Life J. Chela-Flores Chirality and the Origin of Life R. Navarro Gonzalez, R.K. Khanna and C. Ponnamperuma >Search for Phase Transitions Changing Molecular Chirality A. Figureau, E. Duval and A. Boukenter Theoretical and Experimental Studies on the Possibility of Chirality Dependent Time Direction in Molecules A.S. Garay Extraterrestrial Intelligences J. Heidmann Discussion Sessions Biochemical Markers in Precambian Sediments--Indian Subcontinent S.S. Rane, A.V. Patankar, M.S. Chadha, B. Udayraj and S.M. Naqvi Practicabilities and Limits of Stereospecific Autocatalysis: An Experimental Approach T. Buhse, W. Thiemann, D. Lavabre and J.-C. Micheau Ionizing Radiation and Chemical Processing of Waters on Early Earth I.G. Draganic and S.I. Vujosevic Chemical Effects of Ionizing Radiation and Sonic Energy in the Context of Chemical Evolution A. Negron-Mendoza and G. Albarran Differences in Radiolysis Behavior of D,L-Amino Acid in Primary Stage and Thermodynamic Equilibrium State W.Q. Wang, J.L. Wu and J. Jiang Experimental Searches for the Origin of Biomolecular Asymmetry L. Keszthelyi True and False Chirality L.D. Barron Chiral Interaction and Biomolecular Evolution G. Gilat Chiral Forces and Molecular Dissymmetry R. Mohan Viroids and Viruses at the Origin of Organized Life L.J. Boya and P. Boya The Role of Neoteny and Sociogenesis in the Evolution of Cell Structure V.J.A. Novak