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Resultado: 836 registro(s)

21170

Biology of Amoeba, The

 

Academic Press, 1973.

ISBNs 9780123848505

Colección: ScienceDirect

Resumen (en inglés): The Biology of Amoeba discusses the general biology, morphology, movement and related phenomena, and biochemical and physiological studies of amoeba. This book is organized into five parts, encompassing 21 chapters that primarily focus on large free-living amoeba.
After briefly discussing the highlights of studies involving amoeba, the book goes on describing the biological aspects of amoeba, including its taxonomy, phylogeny, culture, and maintaining methods. The second part describes the general morphology, ultrastructure, and cellular membrane of amoeba. The third part includes discussions on the movement of Chaos-Amoeba group; the amoeboid behavioral and motile responses; the molecular mechanism of amoeboid movement and cytoplasmic streaming; and the mechanism of endocytosis in the freshwater amoeba. Part 4 covers the effects of various groups of mutagens, antibiotics, radiation, and high pressure on phenotype change and cell activities of amoeba. The concluding part deals with the isolation and purification of amoeba's nucleic acids, as well as physical and chemical characterizations of these compounds. This part also describes the characteristics of structural features of amoeba's cell surface and the chemistry of tripartite surface. Discussions on cell cycle, nucleocytoplasmic interactions, nuclear-nuclear interactions, genetics, and strain specificity in amoeba are also covered.
The book is intended as a comprehensive literature source for students in cell biology as well as for those who are using amoeba as research organisms.


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16989

Biology of Bats

 

Academic Press, 1970.

ISBNs 9780127580012

Colección: ScienceDirect

Resumen (en inglés): Biology of Bats, Volume I, examines most of the basic characteristics related to the anatomy, physiology, behavior, and ecology of the bat. It covers the animal's evolution, as well as karyology, bioeconomics, zoogeography, principles of classification, and procedures and issues involved in the care and management of bats as research subjects in the laboratory.
Organized into 10 chapters, this volume begins with a historical overview of bat origins and evolution, karyotypic trends in bats, and the role of karyotypes in studying the biology of bats. It then discusses the bat skeletal and muscular systems; flight patterns and aerodynamics; prenatal and postnatal development; migration and homing; ecology and physiological ecology of bat hibernation; thermoregulation and metabolism; and the urinary system, including gross anatomy and embryology, histophysiology, and renal physiology. It also looks at morphological contrasts between the skulls and dentitions of different families and genera of bats.
This book will benefit biologists, zoologists, teachers, and others concerned with the general biology of Chiroptera.


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16990

Biology of Conidial Fungi

Vol. 2

 

Academic Press, 1981.

ISBNs 9780121795023

Colección: ScienceDirect

Resumen (en inglés): Biology of Conidial Fungi, Volume 2 presents detailed considerations of many facets of conidial fungi. Organized into four parts, this volume begins with the discussion on the four categories of clinical infections of man caused by this organism. It then describes the ultrastructure, development, physiology, biochemistry, and genetics of conidial fungi. It also explains the techniques for investigation of conidial fungi, including isolation, cultivation, and maintenance. Techniques for examining developmental and ultrastructural aspects of conidial fungi are shown as well.
This volume will fill some gaps in the knowledge of anamorphs and serve as a useful reference to advanced students who probably encounter such type of fungi.


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21171

Biology of Crustacea, The

Pathobiology

 

Academic Press, 1983.

ISBNs 9780121064068

Colección: ScienceDirect

Resumen (en inglés): The Biology of Crustacea, Volume 6: Pathobiology summarizes the state of knowledge, major advances, and important problems in crustacean diseases.
Organized into five chapters, this book begins with the discussion on the disease-causing viruses, Rickettsiae, bacteria, and fungi afflicting crustaceans. It then talks about diseases caused by protozoans, indicating the large gaps in knowledge of life histories, mechanisms of transmission, and pathogenesis. This book also emphasizes the many different ways in which a host crustacean may respond to a disease-causing organism and how these responses are linked to the mode of invasion and nature of the disease-causing organism, itself. The life histories of metazoans that live in various relationships in or on crustacean hosts, and the life histories and impacts of parasitic crustaceans on hosts are also explored.
This book will serve as a starting point for those needing a summary of topics concerning crustacean diseases and as a stimulus for further work.


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16991

Biology of Fertilization

Vol. 1

 

Academic Press, 1985.

ISBNs 9780124926011

Colección: ScienceDirect

Resumen (en inglés): Biology of Fertilization, Volume 1: Model Systems and Oogenesis is the first in a three-volume series that gathers various lines of research about reproduction in general and fertilization in particular. Knowledge about cell biology, immunobiology, biochemistry, biophysics, and molecular genetics has progressed significantly beyond our understanding of some aspects of fertilization. Components of these constitute ""model systems."" The present volume includes reviews of such systems, some relatively simple model systems in lower organisms, sex-determining mechanisms, and oogenesis.
The book contains 12 chapters organized into two sections. Section I includes studies on evolution, reproductive success, and immortality of the germ line; the structures and mechanisms involved in fertilization problems; and fertilization in Paramecium. Section II on oogenesis includes studies on gamete differentiation; sex-determining role of the H-Y antigen in mammals and non-mammals; the mechanism of starfish oocyte maturation; meiotic arrest in animal oocytes; and the mitotic and meiotic aspects of the mammalian germ cell life cycle.


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16992

Biology of Fertilization

Vol. 2

 

Academic Press, 1985.

ISBNs 9780124926028

Colección: ScienceDirect

Resumen (en inglés): Biology of Fertilization, Volume 2: Biology of the Sperm is the second in a three-volume series that brings together various lines of research about reproduction in general and fertilization in particular. It is devoted to spermatogenesis, sperm physiology, and the initial interactions of sperm with egg components.
The book is organized into three parts. Part I on spermatogenesis and sperm physiology includes studies on the evolution of the sperm cell; regulatory mechanisms, sperm antigen differentiation, and maturation of sperm in the reproductive tracts in mammals; physicochemical mechanisms of the acrosome filament extrusion process; and enzymes associated with sperm cell function. Part II deals with chemotaxis in microorganisms: bacteria and slime molds. Part III on gamete recognition and binding includes studies on identifying, isolating, and characterizing specific sperm and egg surface components involved in sperm-egg interaction; fertilization in the alga Fucus; fertilization in insects; and the role of lysins in fertilization.


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16993

Biology of Fertilization

Vol. 3

 

Academic Press, 1985.

ISBNs 9780124926035

Colección: ScienceDirect

Resumen (en inglés): The Fertilization Response of the Egg is the third and final volume of the Biology of Fertilization which provides a detailed discussion of the responses of the egg to the fertilizing sperm, collectively called as the activation of the egg. It is an anthology of physiological articles written by biology and physiology professionals.

The book is divided into 12 chapters, half of which focused on the sea urchin egg fertilization, as it is the most studied form. The first two chapters cover the discussions on the first visible egg responses to fertilization and the formation of the fertilization membrane. The following chapter describes the relationship of sperm entry into the amphibian egg and the establishment of the symmetry of the embryo. Other chapters focus on the electrical and ionic changes of the egg plasma membrane and cytoplasm. The remaining parts of the book describe the synthetic activities in the egg that are initiated during fertilization. These include description of DNA and maternal RNA syntheses, nuclear-cytoplasm interactions, protein synthesis during oogenesis and early embryogenesis, and the expression of maternal messenger RNA.

The book is an excellent reference for undergraduate and graduate biology students, specifically in physiology, embryogenesis, and developmental biology. It can also be an invaluable source of information for lecturers and professionals in biology.


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21172

Biology of Frankia and Actinorhizal Plants, The

 

Academic Press, 1990.

ISBNs 9780126332100

Colección: ScienceDirect

Resumen (en inglés): The Biology of Frankia and Actinorhizal Plants provides a comprehensive review of Frankia and the actinorhizal plants. It reviews the state of knowledge on all aspects from molecular genetics through ecology to practical applications; describes methods used in research and practical applications; and is a guide to the literature.
The book begins with overviews of Frankia and the actinorhizal plants, and developments in the field prior to the first confirmed isolation of Frankia. Next is a series of authoritative chapters on the biology of Frankia, the symbiosis, and actinorhizal plants. Although methods used in research and in practical applications are included throughout the book, they are given special emphasis in the middle section. The final section of the book concerns the ecology and current and potential uses of actinorhizal plants in both the temperate regions and the tropics.
This work is intended as a reference text and handbook of methods for a wide audience including established workers and students of Frankia and actinorhizal plants, specialists and students in other areas of nitrogen fixation (including the Rhizobium-legume symbiosis), soil microbiologists, plant physiologists, ecologists, general biologists, foresters, specialists in land reclamation, and managers requiring an authoritative overview of this rapidly developing field.


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16994

Biology of Halophytes

 

Academic Press, 1972.

ISBNs 9780127308500

Colección: ScienceDirect

Resumen (en inglés): Biology of Halophytes is a monograph on the biological aspects of halophytes and their behavior under saline conditions. It explores the physioecological characteristics of halophytes, such as reproduction, growth, metabolism, water relations, mineral nutrition, salt transport, salt secretion, and salt resistance. It also provides ecological information on higher marine plants, particularly submerged angiosperms, mangroves, and high coast plants.
Organized into 16 chapters, this volume begins with an overview of sources of salinity and the development and nature of salines and salt-affected soils. It proceeds with a discussion of the classification of halophytes, their mutual relationships, distribution, and sociology. It also summarizes autecological information on some terrestrial halophytes and introduces the reader to the formative effects of salinity, interrelationships between plants and spatial distribution within the community, ion transport and mineral nutrition, and regulation of salt content of shoots, before concluding with a short review on ecotypic differentiation in halophytes.
This book will be a valuable resource for advanced students, as well as teachers of plant and environmental sciences.


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16995

Biology of Hydra

 

Academic Press, 1973.

ISBNs 9780121459505

Colección: ScienceDirect

Resumen (en inglés): Biology of Hydra covers eight areas of Hydra biology, particularly, its behavior and ecology; polarity; gastrodermal and epidermal regeneration; differentiation of nervous elements; cell proliferation and morphogenesis; and mesoglea.
This book describes, in particular, the various aspects of Hydra's behavior, not obvious in casual observation, as well as the animal’s feeding and digestion. It also looks into the contribution of interstitial cells to the regenerative process in Hydra; the ultrastructural changes during dedifferentiation and redifferentiation in the regenerating, isolated gastrodermis; regeneration from isolated epidermal explants; and regeneration of a Hydra containing no interstitial cells from an isolated basal disc. Furthermore, the book explains the grafting of the gastrodermis of Hydra viridis to the epidermis of Hydra pseudoligactis, and the results of such agraft on two animals sectioned for histological study. It examines the role of the neoblast in regeneration and the ultrastructure of Hydra’s nervous system. The book also explores Hydra’s growth and the contribution of cell proliferation to net growth and maintenance of form.


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