Le Vacuome de la Cellule Végétale: Morphologie. Le Vacuome Animal. Contractile Vacuoles of Protozoa. Food Vacuoles PDF Download
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Author: Pierre Dangeard
Publisher: Springer Science & Business Media
ISBN: 3709157706
Category : Science
Languages : en
Pages : 182
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Book Description
It is also possible that contractile vacuoles originate by some form of phase separation not yet understood and possibly involving the contractile properties of proteins, and' it is possible that this process continues to operate in the walls of the vacuoles or feeder canals. This secretory process may be the function of that part of the vacuolar apparatus which blackens on impregnation with osmic acid, and which seems to possess some degree of permanence from vacuole to vacuole and in some cases from parent to daughter cell. Remarkably little is known about the mechanism of systole. General body turgor may contribute, but it is not essential. In ciliates the main force is local and probably comes from a tension in the wall of the vacuole itself, but it is not known whether or not this is an active contraction of an oriented protein layer. The critical process for the initiation of systole is probably the opening of the pore. It is possible that in ciliates there is a rhythmically operating independent timing mechani,sm by which the vacuolar cycle is controlled, but its existence has not been demonstrated.
Author: Pierre Dangeard
Publisher: Springer Science & Business Media
ISBN: 3709157706
Category : Science
Languages : en
Pages : 182
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Book Description
It is also possible that contractile vacuoles originate by some form of phase separation not yet understood and possibly involving the contractile properties of proteins, and' it is possible that this process continues to operate in the walls of the vacuoles or feeder canals. This secretory process may be the function of that part of the vacuolar apparatus which blackens on impregnation with osmic acid, and which seems to possess some degree of permanence from vacuole to vacuole and in some cases from parent to daughter cell. Remarkably little is known about the mechanism of systole. General body turgor may contribute, but it is not essential. In ciliates the main force is local and probably comes from a tension in the wall of the vacuole itself, but it is not known whether or not this is an active contraction of an oriented protein layer. The critical process for the initiation of systole is probably the opening of the pore. It is possible that in ciliates there is a rhythmically operating independent timing mechani,sm by which the vacuolar cycle is controlled, but its existence has not been demonstrated.
Author: Charles Russell Bardeen
Publisher:
ISBN:
Category : Anatomy
Languages : en
Pages : 452
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Book Description
Issues for 1906- include the proceedings and abstracts of papers of the American Association of Anatomists (formerly the Association of American Anatomists); 1916-60, the proceedings and abstracts of papers of the American Society of Zoologists.
Author: Claude A. Knight
Publisher: Springer Science & Business Media
ISBN: 3709133289
Category : Science
Languages : en
Pages : 182
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Book Description
Author: Deepesh De
Publisher: CSIRO PUBLISHING
ISBN: 0643099441
Category : Science
Languages : en
Pages : 314
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Book Description
This book is the only comprehensive work, at introductory level, on plant cell vacuoles. Vacuoles are ubiquitous, multifaceted and indispensable organelles and yet they have been thinly treated in the literature to date. This is at odds with the amount of interest in vacuoles that has been expressed in the last two decades. This comprehensive work provides a solid foundation on vacuoles to an advanced level. The latest research findings have been included in all aspects of plant and yeast vacuoles. The book synthesizes all the available information on the plant cell vacuole. It includes methodologies, occurrence and diversity, structure and biochemistry of tonoplasts and molecular biology of biogenesis and diverse functions, all presented in a concise way. The tremendous surge in the genetic engineering of plants for commercial products requires a comprehension of the functions and possibilities of vacuole manipulation since most of the targets of improvement directly involve vacuoles. Thus the work will be valuable to students of plant sciences, plant breeding, cell biology and plant biotechnology, as well as advanced researchers who seek a better understanding of this vital organelle.
![Proceedings [of The] Zesde Internationaal Botanisch Congres, Amsterdam, 2-7 September, 1935 PDF](https://books.google.com/books/content/images/frontcover/O_4UAAAAIAAJ?fife=w80-h100)
Author: Marius Jacob Sirks
Publisher: Brill Archive
ISBN:
Category :
Languages : en
Pages : 344
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Book Description
Author: Heinerle L. Booij
Publisher: Springer Science & Business Media
ISBN: 3709154561
Category : Science
Languages : en
Pages : 167
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Book Description
Author: Marcel Locquin
Publisher: Butterworth-Heinemann
ISBN: 148316487X
Category : Science
Languages : en
Pages : 335
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Book Description
Handbook of Microscopy is a manual that deals mainly with the basic instruments and techniques used in light microscopy and its biological applications. A large section is devoted to the study of organic matter in microfossils preserved in rocks, in view of its stratigraphic importance in mining and oil prospecting. This text is comprised of six chapters; the first of which introduces the reader to the basic principles as well as to the instruments and techniques used in light microscopy. This book also discusses the microscopes and electronic flashlights for photomicrography, along with the use of monochromatic light, stereological and physicochemical microanalysis, microanalysis by electron microscopy, and microdetermination of physical values. Attention then turns to staining and impregnation and methods of fixation, examination, cutting, and mounting. The remaining chapters focus on the microscopy of topological stains and non-specific cytological stains, with emphasis on special methods used in animal and plant histology and protistology and mycological methods in pathology. This book is written specifically for microscopists.
Author: National Academy of Sciences, India
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 478
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Book Description
Author: National Academy of Sciences, India
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 340
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Book Description
Author: James Bonner
Publisher: Elsevier
ISBN: 032313954X
Category : Science
Languages : en
Pages : 944
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Book Description
Plant Biochemistry, Third Edition examines the fundamental aspects of plant biochemistry and biology, including taxonomy, morphology, ecology, horticulture, agronomy, and phytopathology. It discusses the substructures and subfunctions of plant cells, the basic metabolism of plants, and the mechanism and regulation as well as physiological significance of various pathways of photosynthetic carbon dioxide assimilation. Comprised of 26 chapters, this edition begins with an overview of the subcellular components of the plant cell, the overall logic or strategy that the cell uses, and the operation of individual subcellular systems. It discusses the plant ribosomes and nuclei, biosynthesis and assembly of cell membranes in plants, distribution and functional roles of microbodies in plants, photosynthesis and the general biology of chloroplasts, and plant microtubules. The remaining chapters focus on the biochemistry and functions of vacuoles, the primary cell wall and its biogenesis, the regulation of enzyme activity in metabolic pathways, the monosaccharides and oligosaccharides, and the lipid metabolism. The book concludes with a chapter on biological nitrogen fixation and its practical applications in agriculture. This book is a valuable resource for biochemists and plant biologists as well as advanced students or professional workers in plant sciences.
