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: J. Lom
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 336
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Book Description
Based on twenty years of research experience, this unique, large format volume presents an up-to-date treatment of the biology, relation to the host, taxonomy and diagnostic features of protozoan parasites infecting fishes. By presenting definitions of all 151 genera, keys for the determination of all main groups of fish protozoa, copious illustrations and half-tone plates, and details on the technique of investigation, the book makes it possible to determine all protozoan parasites of fishes down to generic level. In each genus, all important pathogenic species are dealt with, special attention being paid to their pathogenic action, and these are well documented by photomicrographs. A wide range of information is given on host-parasite relations, including data on pathogenicity of separate groups and species; and a host-parasite checklist enables a quick orientation on protozoa that may be encountered in one hundred economically important fish species. In addition to the to the true protozoan phyla, an appendix lists a few organisms of uncertain position with alleged or possible relation to protozoa; altogether, 561 species are described. This book is the first of its kind and should be invaluable reading for all fish parasitologists, fisheries biologists, aquaculturists and all others interested in protozoan parasites of fishes.
Author: August Krogh
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Hugh Davson
Publisher:
ISBN: 9780028435909
Category : Cells
Languages : en
Pages : 365
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Book Description
Author: Neil Hazon
Publisher: Springer Science & Business Media
ISBN: 3642604153
Category : Science
Languages : en
Pages : 217
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Book Description
This book draws together the most relevant and recent advances in the area of ionic transport in animals. In particular, it describes the role of modern cell and molecular biology research techniques in this rapidly advancing field. These techniques have led to important advances in our knowledge of cellular mechanisms of ion transporting epithelia, the role and expression of osmoregulatory hormones and a new understanding of whole body salt and water balance.
Author: Pierre Dangeard
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 194
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Book Description
