Origin of Eukaryotic Cells

Origin of Eukaryotic Cells PDF Author: Lynn Margulis
Publisher:
ISBN:
Category : Cells
Languages : en
Pages : 0

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Book Description

Origin of Eukaryotic Cells

Origin of Eukaryotic Cells PDF Author: Lynn Margulis
Publisher:
ISBN:
Category : Cells
Languages : en
Pages : 0

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Book Description


The Origin and Evolution of Eukaryotes

The Origin and Evolution of Eukaryotes PDF Author: Patrick J. Keeling
Publisher:
ISBN: 9781621820284
Category : Science
Languages : en
Pages : 416

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Book Description
All protists, fungi, animals, and plants on Earth are eukaryotes. Their cells possess membrane-bound organelles including a nucleus and mitochondria, distinct cytoskeletal features, and a unique chromosome structure that permits them to undergo mitosis or meiosis. The emergence of eukaryotic cells from prokaryotic ancestors about 2 billion years ago was a pivotal evolutionary transition in the history of life on Earth. But the change was abrupt, and few clues exist as to the nature of the intermediate stages. Written and edited by experts in the field, this collection from Cold Spring Harbor Perspectives in Biology examines evolutionary scenarios that likely led to the emergence and rapid evolution of eukaryotes. Contributors review the mechanisms, timing, and consequences of endosymbiosis, as well as molecular and biochemical characteristics of archaea and bacteria that may have contributed to the first eukaryotic lineage. They explore all of the available evidence, including clues from the fossil record and comparative genomics, and formulate ideas about the origin of genomic characteristics (e.g., chromatin and introns) and specific cellular features (e.g., the endomembrane system) in eukaryotes. Topics such as the origins of multicellularity and sex are also covered. This volume includes discussion of multiple evolutionary models that warrant serious attention, as well as lively debate on some of the most contentious topics in the field. It will thus be fascinating reading for evolutionary biologists, cell and molecular biologists, paleobiologists, and all who are interested in the history of life on Earth.

The Origin of Eukaryotic Cells

The Origin of Eukaryotic Cells PDF Author: Betsey Dexter Dyer
Publisher: Van Nostrand Reinhold Company
ISBN:
Category : Science
Languages : en
Pages : 376

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Concepts of Biology

Concepts of Biology PDF Author: Samantha Fowler
Publisher:
ISBN: 9781739015503
Category :
Languages : en
Pages : 0

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Book Description
Black & white print. Concepts of Biology is designed for the typical introductory biology course for nonmajors, covering standard scope and sequence requirements. The text includes interesting applications and conveys the major themes of biology, with content that is meaningful and easy to understand. The book is designed to demonstrate biology concepts and to promote scientific literacy.

In Search of Cell History

In Search of Cell History PDF Author: Franklin M. Harold
Publisher: University of Chicago Press
ISBN: 022617431X
Category : Science
Languages : en
Pages : 318

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Book Description
This comprehensive history of cell evolution “deftly discusses the definition of life” as well as cellular organization, classification and more (San Francisco Book Review). The origin of cells remains one of the most fundamental mysteries in biology, one that has spawned a large body of research and debate over the past two decades. With In Search of Cell History, Franklin M. Harold offers a comprehensive, impartial take on that research and the controversies that keep the field in turmoil. Written in accessible language and complemented by a glossary for easy reference, this book examines the relationship between cells and genes; the central role of bioenergetics in the origin of life; the status of the universal tree of life with its three stems and viral outliers; and the controversies surrounding the last universal common ancestor. Harold also discusses the evolution of cellular organization, the origin of complex cells, and the incorporation of symbiotic organelles. In Search of Cell History shows us just how far we have come in understanding cell evolution—and the evolution of life in general—and how far we still have to go. “Wonderful…A loving distillation of connections within the incredible diversity of life in the biosphere, framing one of biology’s most important remaining questions: how did life begin?”—Nature

Mitochondria and Anaerobic Energy Metabolism in Eukaryotes

Mitochondria and Anaerobic Energy Metabolism in Eukaryotes PDF Author: William F. Martin
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110612410
Category : Science
Languages : en
Pages : 269

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Book Description
Mitochondria are sometimes called the powerhouses of eukaryotic cells, because mitochondria are the site of ATP synthesis in the cell. ATP is the universal energy currency, it provides the power that runs all other life processes. Humans need oxygen to survive because of ATP synthesis in mitochondria. The sugars from our diet are converted to carbon dioxide in mitochondria in a process that requires oxygen. Just like a fire needs oxygen to burn, our mitochondria need oxygen to make ATP. From textbooks and popular literature one can easily get the impression that all mitochondria require oxygen. But that is not the case. There are many groups of organismsm known that make ATP in mitochondria without the help of oxygen. They have preserved biochemical relicts from the early evolution of eukaryotic cells, which took place during times in Earth history when there was hardly any oxygen avaiable, certainly not enough to breathe. How the anaerobic forms of mitochondria work, in which organisms they occur, and how the eukaryotic anaerobes that possess them fit into the larger picture of rising atmospheric oxygen during Earth history are the topic of this book.

Origin of Mitochondria and Hydrogenosomes

Origin of Mitochondria and Hydrogenosomes PDF Author: William F. Martin
Publisher: Springer Science & Business Media
ISBN: 3540385029
Category : Science
Languages : en
Pages : 313

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Book Description
The evolutionary origins of hydrogenosomes have been the subject of considerable debate. This volume closes the gap between the endosymbiotic theory for the origin of organelles and their incorporation into evolutionary theory. It reveals that identifying the genetic contribution to eukaryotes of the mitochondrial endosymbiosis, and revealing the functions of its descendent organelles, are key to understanding eukaryotic biology and evolution.

Endosymbiotic Theories of Organelles Revisited

Endosymbiotic Theories of Organelles Revisited PDF Author: Naoki Sato
Publisher: Springer
ISBN: 9789811511639
Category : Science
Languages : en
Pages : 0

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Book Description
This book re-examines the endosymbiotic theory, and presents various related theories and hypotheses since the first proposal in 1905 by a Russian biologist. It also demonstrates that Lynn Margulis’s contribution to the current endosymbiotic is less than sometimes thought, and presents a plausible idea on how the organelles were formed. Explaining that Margulis’s initial work did not intend to show the endosymbiotic origin of chloroplasts and mitochondria, the book discusses their endosymbiotic origin in the light of current biology with the help of clear visual images. Further, by including numerous historical facts and details of phylogenetic analyses using recent genomic data that are largely unknown to many in the field, it offers deep insights into the history of biology, phylogenetic analysis, and the new evolutionary thinking. 2017 was the 50-year anniversary of Margulis’s first paper in the Journal of Theoretical Biology, and 2020 will mark 50 years since the publication her famous work Origin of Eukaryotic Cells, and as such this book offers a timely reconsideration ofthe works of Lynn Margulis and the endosymbiotic origin of organelles.

The Never-Ending Story of Life

The Never-Ending Story of Life PDF Author: Carlos E. Semino
Publisher: Springer Nature
ISBN: 3030759695
Category : Science
Languages : en
Pages : 112

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Book Description
For humankind, the most irreducible idea is the concept of life itself. In order to understand that life is essentially an infinite process, transmitted from generation to generation, this book takes the reader on a fascinating journey that unravels one of our greatest mysteries. It begins with the premise that life is a fact—that it is everywhere; that it takes infinite forms; and, most importantly, that it is intrinsically self-perpetuating. Rather than exploring how the first living forms emerged in our universe, the book begins with our first primordial ancestor cell and tells the story of life—how it began, when that first cell diversified into many other cell types and organisms, and how it has continued until the present day. On this journey, the author covers the fundaments of biology such as cell division, diversity, regeneration, repair and death. The rather fictional epilogue even goes one step further and discusses ways how to literally escape the problem of limited recourse and distribution on our planet by looking at life outside the solar system. This book is designed to explain complex ideas in biology simply, but not simplistically, with a special emphasis on plain and accessible language as well as a wealth of hand-drawn illustrations. Thus, it is suitable not only for students seeking for an introduction into biological concepts and terminology, but for everyone with an interest in the fundamentals of life at the crossroad of evolutionary and cell biology.

Eukaryotic Microbes

Eukaryotic Microbes PDF Author: Moselio Schaechter
Publisher: Academic Press
ISBN: 0123838762
Category : Science
Languages : en
Pages : 496

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Book Description
Eukaryotic Microbes presents chapters hand-selected by the editor of the Encyclopedia of Microbiology, updated whenever possible by their original authors to include key developments made since their initial publication. The book provides an overview of the main groups of eukaryotic microbes and presents classic and cutting-edge research on content relating to fungi and protists, including chapters on yeasts, algal blooms, lichens, and intestinal protozoa. This concise and affordable book is an essential reference for students and researchers in microbiology, mycology, immunology, environmental sciences, and biotechnology. Written by recognized authorities in the field Includes all major groups of eukaryotic microbes, including protists, fungi, and microalgae Covers material pertinent to a wide range of students, researchers, and technicians in the field