Replication And Functions Of Macromolecular Dna In Synchronously Growing Populations Of Tetrahymena Pyriformis

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Cell Growth and Cell Division

Author : R. J. C. Harris
Publisher : Academic Press
ISBN 13 : 1483282007
Total Pages : 352 pages
Book Rating : 4.4/5 (832 download)

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Book Synopsis Cell Growth and Cell Division by : R. J. C. Harris

Download or read book Cell Growth and Cell Division written by R. J. C. Harris and published by Academic Press. This book was released on 2014-07-15 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cell Growth and Cell Division is a collection of papers dealing with the biochemical and cytological aspects of cell development and changes in bacterial, plant, and animal systems. One paper discusses studies on the nuclear and cytoplasmic growth of ten different strains of the genus Blepharisma, in which different types of nutrition at high and low temperatures alter the species to the extent that they became morphologically indistinguishable. The paper describes the onset of death at high and low temperatures as being preceded by a decrease in the size of the cytoplasm and a corresponding decrease in the size of the macronucleus. The moribund organisms, still possessing structure, are motionless with no distinguishable macronuclear materials. Another paper presents the response of meiotic and mitotic cells to azaguanine, chloramphenicol, ethionine, and 5-methyltryptophan. The paper describes the failure of spindle action, arrest of second division, inhibition of cytokinesis, aberrant wall synthesis, and alterations in chromosome morphology in meiosis cells. In the case of mitosis, a single enzyme—thymidine phosphorylase—shows that reagents which inhibit protein synthesis also inhibit the appearance of that enzyme if the reagent is applied one day before it normally appears. Other papers discuss control mechanisms for chromosome reproduction in the cell cycle, as well as the force of cleavage of the dividing sea urchin egg. The collection can prove valuable for bio-chemists, cellular biologists, micro-biologists, and developmental biologists.

Nucleic Acids Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 910 pages
Book Rating : 4.:/5 (38 download)

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Book Synopsis Nucleic Acids Abstracts by :

Download or read book Nucleic Acids Abstracts written by and published by . This book was released on 1978 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Cell Cycle and Cell Differentiation

Author : J. Reinert
Publisher : Springer Science & Business Media
ISBN 13 : 354037390X
Total Pages : 336 pages
Book Rating : 4.5/5 (43 download)

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Book Synopsis Cell Cycle and Cell Differentiation by : J. Reinert

Download or read book Cell Cycle and Cell Differentiation written by J. Reinert and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is instructive to compare the response of biologists to the two themes that comprise the title of this volume. The concept of the cell cycle-in contra distinction to cell division-is a relatively recent one. Nevertheless biologists of all persuasions appreciate and readily agree on the central problems in this area. Issues ranging from mechanisms that initiate and integrate the synthesis of chro mosomal proteins and DNA during S-phase of mitosis to the manner in which assembly of microtubules and their interactions lead to the segregation of metaphase chromosomes are readily followed by botanists and zoologists, as well as by cell and molecular biologists. These problems are crisp and well-defined. The current state of "cell differentiation" stands in sharp contrast. This, one of the oldest problems in experimental biology, almost defies definition today. The difficulties arise not only from a lack of pertinent information on the regulatory mechanisms, but also from conflicting basic concepts in this field. One of the ways in which this situation might be improved would be to find a broader experimental basis, including a better understanding of the relationship between the cell cycle and cell differentiation.

Comptes rendus des travaux du Laboratoire Carlsberg

Author : Carlsberg laboratoriet
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Comptes rendus des travaux du Laboratoire Carlsberg by : Carlsberg laboratoriet

Download or read book Comptes rendus des travaux du Laboratoire Carlsberg written by Carlsberg laboratoriet and published by . This book was released on 1977 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Research Awards Index

Author :
Publisher :
ISBN 13 :
Total Pages : 1384 pages
Book Rating : 4.3/5 (91 download)

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Download or read book Research Awards Index written by and published by . This book was released on 1978 with total page 1384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Bacterial Physiology

Author : C. H. Werkman
Publisher : Elsevier
ISBN 13 : 1483274853
Total Pages : 724 pages
Book Rating : 4.4/5 (832 download)

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Book Synopsis Bacterial Physiology by : C. H. Werkman

Download or read book Bacterial Physiology written by C. H. Werkman and published by Elsevier. This book was released on 2013-10-22 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacterial Physiology focuses on the physiology and chemistry of microorganisms and the value of bacterial physiology in the other fields of biology. The selection first underscores the chemistry and structure of bacterial cells, including the chemical composition of cells, direct and indirect methods of cytology, vegetative multiplication, spores of bacteria, and cell structure. The text then elaborates on inheritance, variation, and adaptation and growth of bacteria. The publication reviews the physical and chemical factors affecting growth and death. Topics include hydrogen ion concentration and osmotic pressure; surface and other forces determining the distribution of bacteria in their environment; dynamics of disinfection and bacteriostasis; bacterial resistance; and types of antibacterial agents. The text also ponders on the anaerobic dissimilation of carbohydrates, bacterial oxidations, and autotrophic assimilation of carbon dioxide. The selection is a dependable reference for readers interested in bacterial physiology.

Cumulated Index Medicus

Author :
Publisher :
ISBN 13 :
Total Pages : 960 pages
Book Rating : 4.3/5 (243 download)

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Download or read book Cumulated Index Medicus written by and published by . This book was released on 1981 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt:

RNA Infrastructure and Networks

Author : Lesley J. Collins
Publisher : Springer Science & Business Media
ISBN 13 : 1461403324
Total Pages : 297 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis RNA Infrastructure and Networks by : Lesley J. Collins

Download or read book RNA Infrastructure and Networks written by Lesley J. Collins and published by Springer Science & Business Media. This book was released on 2011-09-15 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: RNAs form complexes with proteins and other RNAs. The RNA‐infrastructure represents the spatiotemporal interaction of these proteins and RNAs in a cell‐wide network. RNA Infrastructure and Networks brings together these ideas to illustrate the scope of RNA‐based biology, and how connecting RNA mechanisms is a powerful tool to investigate regulatory pathways. This book is but a taste of the wide range of RNA‐based mechanisms that connect in the RNA infrastructure.

Nuclear Science Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 1132 pages
Book Rating : 4.3/5 (91 download)

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Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 1132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Endocytosis in Plants

Author : Jozef Šamaj
Publisher : Springer Science & Business Media
ISBN 13 : 3642324622
Total Pages : 337 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Endocytosis in Plants by : Jozef Šamaj

Download or read book Endocytosis in Plants written by Jozef Šamaj and published by Springer Science & Business Media. This book was released on 2012-10-02 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Endocytosis is a fundamental cellular process by means of which cells internalize extracellular and plasma membrane cargos for recycling or degradation. It is important for the establishment and maintenance of cell polarity, subcellular signaling and uptake of nutrients into specialized cells, but also for plant cell interactions with pathogenic and symbiotic microbes. Endocytosis starts by vesicle formation at the plasma membrane and progresses through early and late endosomal compartments. In these endosomes cargo is sorted and it is either recycled back to the plasma membrane, or degraded in the lytic vacuole. This book presents an overview of our current knowledge of endocytosis in plants with a main focus on the key molecules undergoing and regulating endocytosis. It also provides up to date methodological approaches as well as principles of protein, structural lipid, sugar and microbe internalization in plant cells. The individual chapters describe clathrin-mediated and fluid-phase endocytosis, as well as flotillin-mediated endocytosis and internalization of microbes. The book was written for a broad spectrum of readers including students, teachers and researchers.

Mechanism of Action of Antieukaryotic and Antiviral Compounds

Author : Fred E. Hahn
Publisher : Springer Science & Business Media
ISBN 13 : 3642464076
Total Pages : 484 pages
Book Rating : 4.6/5 (424 download)

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Book Synopsis Mechanism of Action of Antieukaryotic and Antiviral Compounds by : Fred E. Hahn

Download or read book Mechanism of Action of Antieukaryotic and Antiviral Compounds written by Fred E. Hahn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: When Antibiotics I was published in 1967, the teleological view was held by some that" antibiotics" were substances elaborated by certain microorgan isms for the purpose of competing with other microorganisms for survival in mixed ecological environments. However, not only had J. EHRLICH and his associates shown 15 years earlier that chloramphenicol was produced by Strepto myces venezuelae in cultures of sterilized soils but not in parallel cultures of the same soils which were not sterilized, but operationally, the search for anti cancer antibiotics was actively under way (Antibiotics I reporting on numerous such substances), although the concept of antibiosis could not logically justify such undertakings. This editor hesitates to accept the use of the term "antibiotic" for anti microbial agents of non microbiological origins which is sometimes encountered, but neither does he subscribe to the view that antibiotics are in some fundamental manner different from chemotherapeutic substances of other origins. Modes and mechanisms of action of chemotherapeutic compounds are not systematic functions of their origins nor of the taxonomical position of the target organisms. Consequently, in the selection of topics for Antibiotics III (published in 1975), synthetic drugs and natural products of higher plants (alkaloids) were represented, along with antibiotics in the strict sense of the definition. We now present Antibiotics V, for whose assembly the same selection criteria were applied as for Antibiotics Ill. The aggregate length of the contributions rendered it impractical to place the entire text between the covers of one book.

Structure and Function of Invertebrate Oxygen Carriers

Author : Serge N. Vinogradov
Publisher : Springer Science & Business Media
ISBN 13 : 1461231744
Total Pages : 353 pages
Book Rating : 4.4/5 (612 download)

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Book Synopsis Structure and Function of Invertebrate Oxygen Carriers by : Serge N. Vinogradov

Download or read book Structure and Function of Invertebrate Oxygen Carriers written by Serge N. Vinogradov and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxygen binding proteins are large multi unit proteins ideally suited for the study of structure function relationships in biological molecules. This book, based on a Symposium at the Xth International Biophysics Congress in 1990, provides a synthesis of recent advances in our knowledge of invertebrate oxygen carriers such as hemoglobins, hemocyanins, and hemorythrins. Comprehensive reviews are combined with new research results of importance to all biochemists and molecular biologists interested in oxygen carriers in general, their gene structure and comparative biochemistry. Of particular value are the studies of invertebrate oxygen binding proteins which perform their function and have structures vastly different from the vertebrate hemoglobins and myoglobins, as well as numerous examples of modern molecular techniques as applied to research on this diverse group of proteins.

Cellular Effects of Heavy Metals

Author : Gaspar Banfalvi
Publisher : Springer Science & Business Media
ISBN 13 : 9400704283
Total Pages : 348 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis Cellular Effects of Heavy Metals by : Gaspar Banfalvi

Download or read book Cellular Effects of Heavy Metals written by Gaspar Banfalvi and published by Springer Science & Business Media. This book was released on 2011-03-02 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: The term “heavy metals” is used as a group name of toxic metals and metalloids (semimetals) causing contaminations and ecotoxicity. In strict chemical sense the density of heavy metals is higher than 5 g/cm3. From biological point of view as microelements they can be divided into two major groups. a. For their physiological function organisms and cells require essential microelements such as iron, chromium (III), cobalt, copper, manganese, molidenium, zinc. b. The other group of heavy metals is toxic to the health or environment. Of highest concern are the emissions of As, Cd, Co, Cu, Hg, Mn, Ni, Pb, Sn, Tl. The toxicity of heavy metals is well known at organizational level, while less attention has been paid to their cellular effects. This book describes the toxicity of heavy metals on microorganisms, yeast, plant and animal cells. Other chapters of the book deal with their genotoxic, mutagenic and carcinogenic effects. The toxicity of several metals touch upon the aspects of environmental hazard, ecosystems and human health. Among the cellular responses of heavy metals irregularities in cellular mechanisms such as gene expression, protein folding, stress signaling pathways are among the most important ones. The final chapters deal with biosensors and removal of heavy metals. As everybody is eating, drinking and exposed to heavy metals on a daily basis, the spirit of the book will attract a wide audience.

Insects at Low Temperature

Author : Richard Lee
Publisher : Springer Science & Business Media
ISBN 13 : 147570190X
Total Pages : 516 pages
Book Rating : 4.4/5 (757 download)

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Book Synopsis Insects at Low Temperature by : Richard Lee

Download or read book Insects at Low Temperature written by Richard Lee and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of insects at low temperature is a comparatively new field. Only recently has insect cryobiology begun to mature, as research moves from a descriptive approach to a search for underlying mechanisms at diverse levels of organization ranging from the gene and cell to ecological and evolutionary relationships. Knowledge of insect responses to low temperature is crucial for understanding the biology of insects living in seasonally varying habitats as well as in polar regions. It is not possible to precisely define low temperature. In the tropics exposure to 10-15°C may induce chill coma or death, whereas some insects in temperate and polar regions remain active and indeed even able to fly at O°C or below. In contrast, for persons interested in cryopreservation, low temperature may mean storage in liquid nitrogen at - 196°C. In the last decade, interest in adaptations of invertebrates to low temperature has risen steadily. In part, this book had its origins in a symposium on this subject that was held at the annual meeting of the Entomological Society of America in Louisville, Kentucky, USA in December, 1988. However, the emergence and growth of this area has also been strongly influenced by an informal group of investigators who met in a series of symposia held in Oslo, Norway in 1982, in Victoria, British Columbia, Canada in 1985 and in Cambridge, England in 1988. Another is scheduled for Binghamton, New York, USA (1990).

Transactions of the Connecticut Academy of Arts and Sciences

Author :
Publisher :
ISBN 13 :
Total Pages : 484 pages
Book Rating : 4.X/5 (3 download)

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Download or read book Transactions of the Connecticut Academy of Arts and Sciences written by and published by . This book was released on 1972 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 15, "To the University of Leipzig on the occasion of the five hundredth anniversary of its foundation, from Yale University and the Connecticut Academy of Arts and Sciences, 1909."

Marihuana

Author : W.D.M. Paton
Publisher : Springer Science & Business Media
ISBN 13 : 3642516246
Total Pages : 551 pages
Book Rating : 4.6/5 (425 download)

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Book Synopsis Marihuana by : W.D.M. Paton

Download or read book Marihuana written by W.D.M. Paton and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2000 1800 1600 1400 '"" ""0 c 1200 5 c. '0 ~ 1000 c ill :J ~ 800 t- 600 400 200 o~--~--~--~--~--~--~--~ 69 70 71 72 73 74 Year Removals of marihuana by USA federal authorities (domestic and foreign cooperative). (In order to roughly estimate the amounts consumed, the amounts removed are usually multiplied by six.) From ""Hearings of the U.S. Senate Committee on the Judiciary (Subcommittee on Internal Security): Marihuana-Hashish Epidemic, Part II, The Continuing Escalation, May 8, 1975,"" U.S. Government Printing Office, Washington, D.C., 1975. then indicated that accumulation of these foreign.

Pattern Formation

Author : Joseph Frankel
Publisher : Oxford University Press, USA
ISBN 13 :
Total Pages : 348 pages
Book Rating : 4.:/5 (44 download)

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Book Synopsis Pattern Formation by : Joseph Frankel

Download or read book Pattern Formation written by Joseph Frankel and published by Oxford University Press, USA. This book was released on 1989 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the first comprehensive review of pattern formation in ciliates, along with an analysis of general mechanisms of pattern formation. The author emphasizes the integrative mechanisms that encompass the entire cell surface, and pays particular attention to genetic and non-genetic mirror-image reversals of asymmetry. A conceptual model for large-scale intracellular organization is included. The perspective derived from ciliate studies is applied to the early development of multicellular organisms, particularly embryos of Drosophilia. The book will be accessible to developmental biologists with no prior familiarity with ciliates.