The Cell Biology Of Sponges

Author : T.L. Simpson
Publisher : Springer Science & Business Media
Page : 678 pages
File Size : 55,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461252146

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The Cell Biology of Sponges by T.L. Simpson Pdf

Modem biology owes much to the study of favorable model systems which fa cilitates the realization of critical experiments and results in the introduction of new concepts. Examples of such systems are numerous and studies of them are regularly recognized by the scientific community. The 1983 Nobel Prize in Med icine and Physiology is a magnificent example in which com plants served as the experimental model. In a manner somewhat more modest, other biological systems have attracted recognition due to their critical phylogenetic position, or indeed because of their uniqueness which distinguishes them from all other organisms. Assuredly, among the whole assemblage ofliving organisms, sponges stand out as worthy of interest by scientists: they are simultaneously models, an important group in evolution, and animals unlike others. As early as the beginning of this century, sponges appeared as exceptional models for the study of phenomena of cell recognition. Innumerable works have been dedicated to understanding the mechanisms which assure the reaggregation of dissociated cells and the reconstitution of a functional individual. Today, re search on these phenomena is at the ultimate, molecular level. Through an as semblage of characteristics the sponges are, based upon all available evidence, the most primitive Metazoans. Their tissues-perhaps one can say their cell groups-are loosely assembled (they possess no tight or gap junctions), cell dif ferentiation appears highly labile, and they do not develop any true organs. But, they are most certainly Metazoans.

Author : Werner E. G. Müller
Publisher : Springer Science & Business Media
Page : 273 pages
File Size : 41,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642555190

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Sponges (Porifera) by Werner E. G. Müller Pdf

Sponges (phylum Porifera) are known to be very rich sources for bioactive compounds, mainly secondary metabolites. Main efforts are devoted to cell- and mariculture of sponges to assure a sustainable exploitation of bioactive compounds from biological starting material. These activities are flanked by improved technologies to cultivate bacteria and fungi which are associated with the sponges. It is the hope that by elucidating the strategies of interaction between microorganisms and their host (sponge), by modern cell and molecular biological methods, a more comprehensive cultivation of the symbiotic organisms will be possible. The next step in the transfer of knowledge to biotechnological applications is the isolation, characterization and structural determination of the bioactive compounds by sophisticated chemical approaches.

Author : Alexander V. Ereskovsky
Publisher : Springer Science & Business Media
Page : 382 pages
File Size : 49,8 Mb
Release : 2010-03-27
Category : Science
ISBN : 9789048185757

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The Comparative Embryology of Sponges by Alexander V. Ereskovsky Pdf

One of the major questions in the evolution of animals is the transition from unicellular to multicellular organization, which resulted in the emergence of Metazoa through a hypothetical Urmetazoa. The Comparative Embryology of Sponges contains abundant original and literary data on comparative embryology and morphology of the Porifera (Sponges), a group of 'lower Metazoa'. On the basis of this material, original typization of the development of Sponges is given and the problems concerning origin and evolution of Porifera and their ontogenesis are discussed. A morphogenetic interpretation of the body plan development during embryogenesis, metamorphosis and asexual reproduction in Sponges is proposed. Special attention is given to the analysis of characteristic features of the ontogenesis in Porifera. The book pursues three primary goals: 1) generalization of all existing information on individual development of sponges, its classification and a statement according to taxonomical structure of Porifera; 2) revealing of heterogeneity of morphogenesis and peculiarities of ontogeneses in various clades of Porifera, and also their correlations with the organization, both adult sponges, and their larvae; 3) revealing homology of morphogeneses in both Porifera and Eumetazoa, testifying to the general evolutionary roots of multicellular animals, and peculiar features of sponges' morphogeneses and ontogenesis. This book will be of interest to embryologists, zoologists, morphologists and researchers in evolutionary biology.

Author : Frederick Harrison
Publisher : Elsevier
Page : 369 pages
File Size : 40,7 Mb
Release : 2012-12-02
Category : Science
ISBN : 9780323153775

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Aspects of Sponge Biology by Frederick Harrison Pdf

Aspects of Sponge Biology is the result of a symposium about sponge biology held in Albany, New York in May 1975. The symposium not only presents investigations, but also problem areas in the field of sponge biology. This book therefore shows that sponges are a very challenging and untouched subject area for future studies. This book is divided into three major parts, wherein the first part introduces and discusses sponge biology. The introduction and discussion include sponge biology principles, perspectives, and problems. The next two parts discuss cell and development biology, taxonomy, and ecology. Part 2 deals with several topics of the cellular aspect, including an analysis of reproduction in sponge populations and cytochemical studies of connective tissues in sponges. This part also looks into the cytological abnormalities in various normal and transformed cell lines. Part 3 describes the different types of sponge in their various habitats. Sponge feeding mechanisms, ecological factors controlling sponge distribution, and zoogeography of Brazilian marine Demospongiae are also discussed in this part. This book will be of important value to biology students and teachers. Specialists including zoologists, ecologists, comparative physiologists, and biologists will also benefit from this book.

Author : Yoko Watanabe,Nobuhiro Fusetani
Publisher : Unknown
Page : 476 pages
File Size : 44,7 Mb
Release : 1998
Category : Science
ISBN : UCSD:31822023045818

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Sponge Sciences by Yoko Watanabe,Nobuhiro Fusetani Pdf

The sponge has attracted attention as one of the first animals to evolve multicellular organization. The sponge also interests scientists because it provides excellent research material in molecular phylogeny, allowing the process of animal diversification to be probed at the molecular level. Additionally, researchers have discovered in sponges certain bioactive substances with unique antibacterial and anticancer properties of great interest in medical and pharmaceutical science. Sponge Sciences presents the most up-to-date information on all areas of sponge research, with emphasis on taxonomy, molecular evolution, developmental biology, and natural products chemistry, as well as the biology of freshwater sponges. It also provides new findings in the morphology, cell biology, physiology, ecology, and biogeography of sponges. The papers compiled here are contributed by world-renowned sponge scientists.

Author : Mikel A. Becerro
Publisher : Academic Press
Page : 376 pages
File Size : 47,6 Mb
Release : 2012-07-30
Category : Science
ISBN : 9780123942838

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Advances in Sponge Science: Physiology, Chemical and Microbial Diversity, Biotechnology by Mikel A. Becerro Pdf

The authors "have intended to make the forefront of sponge research easily accessible to the nonspecialist, illustrating the state of the art of the field,and presenting current controversial issues. For the specialist, we wanted this monograph to be a handy, valuable update on the most recent advances in sponge science."--p. x

Author : Samantha Fowler,Rebecca Roush,James Wise
Publisher : Unknown
Page : 618 pages
File Size : 43,9 Mb
Release : 2018-01-07
Category : Science
ISBN : 9888407457

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Concepts of Biology by Samantha Fowler,Rebecca Roush,James Wise Pdf

Concepts of Biology is designed for the single-semester introduction to biology course for non-science majors, which for many students is their only college-level science course. As such, this course represents an important opportunity for students to develop the necessary knowledge, tools, and skills to make informed decisions as they continue with their lives. Rather than being mired down with facts and vocabulary, the typical non-science major student needs information presented in a way that is easy to read and understand. Even more importantly, the content should be meaningful. Students do much better when they understand why biology is relevant to their everyday lives. For these reasons, Concepts of Biology is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand.We also strive to show the interconnectedness of topics within this extremely broad discipline. In order to meet the needs of today's instructors and students, we maintain the overall organization and coverage found in most syllabi for this course. A strength of Concepts of Biology is that instructors can customize the book, adapting it to the approach that works best in their classroom. Concepts of Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand--and apply--key concepts.

Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 43,7 Mb
Release : 2024-07-02
Category : Electronic
ISBN : 9789814466431

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Stem Cells by Anonim Pdf

Author : P. Michael Conn
Publisher : Springer Science & Business Media
Page : 756 pages
File Size : 49,5 Mb
Release : 2008-03-07
Category : Medical
ISBN : 9781597452854

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Sourcebook of Models for Biomedical Research by P. Michael Conn Pdf

The collection of systems represented in this volume is a unique effort to reflect the diversity and utility of models used in biomedicine. That utility is based on the consideration that observations made in particular organisms will provide insight into the workings of other, more complex systems. This volume is therefore a comprehensive and extensive collection of these important medical parallels.

Author : Patricia R. Bergquist
Publisher : Univ of California Press
Page : 282 pages
File Size : 45,5 Mb
Release : 1978-01-01
Category : Science
ISBN : 0520036581

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Sponges by Patricia R. Bergquist Pdf

Author : J. T. Penney,A. A. Racek
Publisher : Trieste Publishing
Page : 218 pages
File Size : 44,5 Mb
Release : 2017-07-26
Category : Social Science
ISBN : 0649004744

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Comprehensive Revision of a Worldwide Collection of Freshwater Sponges (Porifera by J. T. Penney,A. A. Racek Pdf

Trieste Publishing has a massive catalogue of classic book titles. Our aim is to provide readers with the highest quality reproductions of fiction and non-fiction literature that has stood the test of time. The many thousands of books in our collection have been sourced from libraries and private collections around the world.The titles that Trieste Publishing has chosen to be part of the collection have been scanned to simulate the original. Our readers see the books the same way that their first readers did decades or a hundred or more years ago. Books from that period are often spoiled by imperfections that did not exist in the original. Imperfections could be in the form of blurred text, photographs, or missing pages. It is highly unlikely that this would occur with one of our books. Our extensive quality control ensures that the readers of Trieste Publishing's books will be delighted with their purchase. Our staff has thoroughly reviewed every page of all the books in the collection, repairing, or if necessary, rejecting titles that are not of the highest quality. This process ensures that the reader of one of Trieste Publishing's titles receives a volume that faithfully reproduces the original, and to the maximum degree possible, gives them the experience of owning the original work.We pride ourselves on not only creating a pathway to an extensive reservoir of books of the finest quality, but also providing value to every one of our readers. Generally, Trieste books are purchased singly - on demand, however they may also be purchased in bulk. Readers interested in bulk purchases are invited to contact us directly to enquire about our tailored bulk rates.

Author : G. C. J. Vosmaer
Publisher : Cambridge University Press
Page : 254 pages
File Size : 44,5 Mb
Release : 1928-01-03
Category : Science
ISBN : 9780521067157

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Bibliography of Sponges 1551-1913 by G. C. J. Vosmaer Pdf

This 1928 bibliography lists approximately 3,800 titles on the subject of sponges, spanning the period 1551-1913. This near-exhaustive bibliography places little-known works alongside more established papers, a range which made it unique. It is a brilliant resource for discovering lesser-known texts on this subject and a fascinating compilation of historical writing on sponges.

Author : John N.A. Hooper,Rob W.M. van Soest
Publisher : Springer Science & Business Media
Page : 1779 pages
File Size : 43,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461507475

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Systema Porifera by John N.A. Hooper,Rob W.M. van Soest Pdf

Research whilst compiling this book has uncovered a fauna about twice the size as that previously published in the literature and consequently Systema Porifera revises and stabilizes the systematics of the phylum to accommodate this new knowledge in a contemporary framework. Practical tools (key illustrations, descriptions of character) are provided to facilitate the assignment of approximately 680 extant and 100 fossil genera. Systema Porifera is unique making sponge taxonomy widely available at the practical level of classification (genera, families, order). It is a taxonomic revision of sponges and spongiomorphis (such as sphinctozoans and archaeocyathans) based on re-evaluation of type materials and evidence. It is also a practical guide to sponge identification providing descriptions and illustrations of characters and interpretation of their importance to systematics. Systema Porifera addresses many long standing nomenclatural problems and provides a sound baseline for future debate on sponges and their place in time and space. Systema Porifera describes 3 classes, 7 subclasses, 24 orders, 127 families and 682 valid genera of extant sponges (with over 1600 nominal generic names and an additional 500 invalid names treated). Treatment of the fossil fauna is less comprehensive or critical, although 6 classes, 30 orders, 245 families and 998 fossil genera are mentioned. Keys to all recent and many fossil taxa are provided.

Author : A. Bairati
Publisher : Springer Science & Business Media
Page : 582 pages
File Size : 52,7 Mb
Release : 2013-03-08
Category : Science
ISBN : 9781468476361

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Biology of Invertebrate and Lower Vertebrate Collagens by A. Bairati Pdf

Knowledge in the field of the biology of the extracellular matrix, and in particular of collagen, has made considerable progress over the last ten years, especially in mammals, birds and ln man with respect to very important applied medical aspects. Basic knowledge in the animal kingdom overall has increased more slowly and haphazardly. We, therefore, considered it useful to organize a meeting specifically devoted to the study of the invertebrate and lower vertebrate collagens. The NATO Scientific Division financed an Advanced Research Workshop aimed at bringing together experts qualified in collagen biology (with morphological, biochemical and genetic specialization) with researchers who are currently studying collagenous tissues of invertebrates and lower vertebrates. The Medical-Biology Committee of the CNR-Rome and the University of Milan also supplied interest and support for the organization of this Meeting. The format of the workshop consisted in: 1) main lectures on the most recent aspects of collagen biology; 2) minireviews on the current knowledge of collagenous tissues in the various invertebrate phyla and in fish; 3) contributed papers on particular aspects of research in specific fields; 4) workshops on the methodology of studying collagen. As we had intended, the Workshop gave a comprehensive overview of acquired knowledge and of the present state of research actlvlty. It permitted wide interdisciplinary discussion, enabling collabora tions to be established and new research themes to be chosen. This volume contains the text of all the contributions presented at the Meeting, including posters.

Author : Gualtherus Carel Jacob Vosmaer,Mme. Catalina Susanna Vosmaer-Roëll
Publisher : CUP Archive
Page : 270 pages
File Size : 46,5 Mb
Release : 2024-07-02
Category : Electronic
ISBN : 8210379456XXX

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Bibliography of Sponges 1551-1913 by Gualtherus Carel Jacob Vosmaer,Mme. Catalina Susanna Vosmaer-Roëll Pdf