Cytoplasmic Genes and Organelles

Cytoplasmic Genes and Organelles PDF Author: Ruth Sager
Publisher: Elsevier
ISBN: 0323151140
Category : Science
Languages : en
Pages : 441

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Book Description
Cytoplasmic Genes and Organelles is about cytoplasmic genes: what they are and what they do. It applies the concepts and methods of cytoplasmic genetics to the problems of cell and molecular biology to which they can uniquely contribute. It shows geneticists the many attractive problems in this area awaiting their attention; cell biologists and biochemists the usefulness of cytoplasmic genetic analysis in their endeavors; and students the potential power of an integrated experimental approach using cytoplasmic genes together with the more conventional tools of biochemistry and electron microscopy in the investigation of organelle biogenesis. The book treats the following aspects of cytoplasmic genetic systems: (1) the properties of cytoplasmic DNA; (2) the genetic analysis of cytoplasmic systems; and (3) the functions of cytoplasmic genes in organelle biogenesis. The opening chapter summarizes the principal findings to provide readers with a bird's eye view of the subject. Subsequent chapters cover topics such as cytoplastmic DNAs; cytoplasmic genes in Chlamydomonas; mitochondrial genetics of yeast; cytoplasmic genes in higher plants; the role of mitochondrial genes in mitochondrial biogenesis; and cytoplasmic genes and cell heredity.

Cytoplasmic Genes and Organelles

Cytoplasmic Genes and Organelles PDF Author: Ruth Sager
Publisher: Elsevier
ISBN: 0323151140
Category : Science
Languages : en
Pages : 441

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Book Description
Cytoplasmic Genes and Organelles is about cytoplasmic genes: what they are and what they do. It applies the concepts and methods of cytoplasmic genetics to the problems of cell and molecular biology to which they can uniquely contribute. It shows geneticists the many attractive problems in this area awaiting their attention; cell biologists and biochemists the usefulness of cytoplasmic genetic analysis in their endeavors; and students the potential power of an integrated experimental approach using cytoplasmic genes together with the more conventional tools of biochemistry and electron microscopy in the investigation of organelle biogenesis. The book treats the following aspects of cytoplasmic genetic systems: (1) the properties of cytoplasmic DNA; (2) the genetic analysis of cytoplasmic systems; and (3) the functions of cytoplasmic genes in organelle biogenesis. The opening chapter summarizes the principal findings to provide readers with a bird's eye view of the subject. Subsequent chapters cover topics such as cytoplastmic DNAs; cytoplasmic genes in Chlamydomonas; mitochondrial genetics of yeast; cytoplasmic genes in higher plants; the role of mitochondrial genes in mitochondrial biogenesis; and cytoplasmic genes and cell heredity.

Cell Organelles

Cell Organelles PDF Author: Reinhold G. Herrmann
Publisher: Springer Science & Business Media
ISBN: 3709191386
Category : Science
Languages : en
Pages : 473

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Book Description
The compartmentation of genetic information is a fundamental feature of the eukaryotic cell. The metabolic capacity of a eukaryotic (plant) cell and the steps leading to it are overwhelmingly an endeavour of a joint genetic cooperation between nucleus/cytosol, plastids, and mitochondria. Alter ation of the genetic material in anyone of these compartments or exchange of organelles between species can seriously affect harmoniously balanced growth of an organism. Although the biological significance of this genetic design has been vividly evident since the discovery of non-Mendelian inheritance by Baur and Correns at the beginning of this century, and became indisputable in principle after Renner's work on interspecific nuclear/plastid hybrids (summarized in his classical article in 1934), studies on the genetics of organelles have long suffered from the lack of respectabil ity. Non-Mendelian inheritance was considered a research sideline~ifnot a freak~by most geneticists, which becomes evident when one consults common textbooks. For instance, these have usually impeccable accounts of photosynthetic and respiratory energy conversion in chloroplasts and mitochondria, of metabolism and global circulation of the biological key elements C, N, and S, as well as of the organization, maintenance, and function of nuclear genetic information. In contrast, the heredity and molecular biology of organelles are generally treated as an adjunct, and neither goes as far as to describe the impact of the integrated genetic system.

Formation and Fate of Cell Organelles

Formation and Fate of Cell Organelles PDF Author: Katherine Brehme Warren
Publisher: Elsevier
ISBN: 0323154239
Category : Science
Languages : en
Pages : 361

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Book Description
Formation and Fate of Cell Organelles presents the proceedings of the symposia of the International Society for Cell Biology. Contributors offer their views on various aspects of the problem of spontaneous assembly, particularly how cellular structures arise from the component molecules. They consider whether all cellular organelles and cells, themselves, can arise by spontaneous assembly, or whether some regulation is involved and the mechanisms underlying such regulation. This book is organized into 16 chapters and begins with an overview of self-assembling systems of equal units and how they can be built efficiently, focusing on quasi-equivalence and helical waves on bacterial flagella. This text also discusses the differences in free energy of the molecules in their various states and the use of the free energy of a particular array of molecules to predict what arrays will form. The reader is introduced to intermolecular forces and how macromolecular lipid structures assemble in vitro, along with developments in the resolution of the spindle fibers of the mitotic apparatus. The book also looks into the mechanisms underlying the disposition of microtubules in plant cells during interphase and mitosis, and then concludes with a chapter on some studies dealing with cytoplasmic genes and cytoplasmic inheritance. This book is a valuable source of information for scientists and researchers engaged in fields ranging from cytology and biology to chemistry, pathology, and biophysics.

Molecular Biology and Biotechnology of Plant Organelles

Molecular Biology and Biotechnology of Plant Organelles PDF Author: Henry Daniell
Publisher: Springer Science & Business Media
ISBN: 1402027133
Category : Science
Languages : en
Pages : 671

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Book Description
Plant organelles have intrigued biologists since the discovery of their endosymbiontic origin and maternal inheritance. The first application of organelle biotechnology was the role of cytoplasmic male sterility in hybrid seed production and "Green Revolution". In modern times, plant organelles are again leading the way for the creation of genetically modified crops. On a global scale, 75% of GM crops are engineered for herbicide resistance and most of these herbicides target pathways that reside within plastids. Several thousand proteins are imported into chloroplasts that participate in biosynthesis of fatty acids, amino acids, pigments, nucleotides and numerous metabolic pathways including photosynthesis. Thus, from green revolution to golden rice, plant organelles have played a critical role in revolutionizing agriculture. This book details not only basic concepts and current understanding of plant organelle genetics and molecular biology but also focuses on the synergy between basic biology and biotechnology. Forty four authors from nine countries have contributed twenty four chapters containing many figures and tables. Section 1 on organelle genomes and proteomes discusses molecular features of plastid and mitochondrial genomes, evolutinary origins, somatic and sexual inheritance, proteomics, bioinformatics and functional genomics. Section 2 on organelle gene expression and signalling discusses transcription, translation, RNA processing/editing, introns and splicing, protein synthesis, proteolysis, import of proteins into chloroplast and mitochondria and their regulation. Section 3 on organelle biotechnology discusses chloroplast and nuclear genetic engineering for biotic/abiotic stress tolerance, improved fatty acid/amino acid biosynthesis, biopharmaceuticals, biopolymers and biomaterials, cytoplasmic male sterility for hybrid seed production, plant improvement and restoration of fertility. This book is designed to serve as a comprehensive volume and reference guide for teachers, advanced undergraduates and graduate students and researchers in plant molecular biology and biotechnology.

Organelle Genetics

Organelle Genetics PDF Author: Charles E. Bullerwell
Publisher: Springer Science & Business Media
ISBN: 364222380X
Category : Science
Languages : en
Pages : 481

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Book Description
Mitochondria and chloroplasts are eukaryotic organelles that evolved from bacterial ancestors and harbor their own genomes. The gene products of these genomes work in concert with those of the nuclear genome to ensure proper organelle metabolism and biogenesis. This book explores the forces that have shaped the evolution of organelle genomes and the expression of the genes encoded by them. Some striking examples of trends in organelle evolution explored here are the reduction in genome size and gene coding content observed in most lineages, the complete loss of organelle DNA in certain lineages, and the unusual modes of gene expression that have emerged, such as the extensive and essential mRNA editing that occurs in plant mitochondria and chloroplasts. This book places particular emphasis on the current techniques used to study the evolution of organelle genomes and gene expression.

Molecular Biology of The Cell

Molecular Biology of The Cell PDF Author: Bruce Alberts
Publisher:
ISBN: 9780815332183
Category : Cytology
Languages : en
Pages : 0

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Book Description


Organelles, Genomes and Eukaryote Phylogeny

Organelles, Genomes and Eukaryote Phylogeny PDF Author: Robert P Hirt
Publisher: CRC Press
ISBN: 0203508939
Category : Science
Languages : en
Pages : 462

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Book Description
The recent revolution in molecular biology has spread through every field of biology including systematics and evolution. Researchers can now analyze the genomes of different species relatively quickly, and this is generating a great deal of data and theories about relationships between taxa as well as how they originated and diversified. Org

Beyond the Gene

Beyond the Gene PDF Author: Jan Sapp
Publisher: Oxford University Press
ISBN: 0195364686
Category : Science
Languages : en
Pages : 283

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Book Description
The scope and significance of cytoplasmic inheritance has been the subject of one of the longest controversies in the history of genetics. In the first major book on the history of this subject, Jan Sapp analyses the persistent attempts of investigators of non-Mendelian inheritance to establish their claims in the face of strong resistance from nucleo-centric geneticists and classical neo-Darwinians. A new perspective on the history of genetics is offered as he explores the conflicts which have shaped theoretical thinking about heredity and evolution throughout the century: materialism vs. vitalism, reductionism vs. holism, preformation vs. epigenesis, neo-Darwinism vs. new-Lamarckism, and gradualism vs. saltationism. In so doing, Sapp highlights competitive struggles for power among individuals and disciplinary groups. He accepts that political interests and general social contexts may directly affect scientific ideas, but develops the stronger thesis that social interests inside science itself are always involved in the content of scientific knowledge. He goes on to show that there are no neutral judges in scientific controversies and investigates the social strategies and methodological rhetoric used by scientists when they defend or oppose a particular theory. At the same time, Sapp illustrates the social constraints that ensure the high cost and risk of entertaining unorthodox theories in the sciences.

Cells and Organelles

Cells and Organelles PDF Author: Alex Benjamin Novikoff
Publisher:
ISBN: 9780039101442
Category : Cell organelles
Languages : en
Pages : 352

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Book Description
A synthesis of the diverse facts of modern cytology & cell biology.

Compendium of Histology

Compendium of Histology PDF Author: Anders Rehfeld
Publisher: Springer
ISBN: 3319418734
Category : Medical
Languages : en
Pages : 670

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Book Description
This book has been designed to help medical students succeed with their histology classes, while using less time on studying the curriculum. The book can both be used on its own or as a supplement to the classical full-curriculum textbooks normally used by the students for their histology classes. Covering the same curriculum as the classical textbooks, from basic tissue histology to the histology of specific organs, this book is formatted and organized in a much simpler and intuitive way. Almost all text is formatted in bullets or put into structured tables. This makes it quick and easy to digest, helping the student get a good overview of the curriculum. It is easy to locate specific information in the text, such as the size of cellular structures etc. Additionally, each chapter includes simplified illustrations of various histological features. The aim of the book is to be used to quickly brush up on the curriculum, e.g. before a class or an exam. Additionally, the book includes guides to distinguish between the different histological tissues and organs that can be presented to students microscopically, e.g. during a histology spot test. This guide lists the specific characteristics of the different histological specimens and also describes how to distinguish a specimen from other similar specimens. For each histological specimen, a simplified drawing and a photomicrograph of the specimen, is presented to help the student recognize the important characteristics in the microscope. Lastly, the book contains multiple “memo boxes” in which parts of the curriculum are presented as easy-to-remember mnemonics.