Peritrophic Membranes
(Sprache: Englisch)
Peritrophic membranes are secretion products of the midgut. For long they have been related only to insects, but they occur widely in the animal kingdom. They effect a part of the gut lumen and function not only as a mechanical protection barrier, but also...
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Klappentext zu „Peritrophic Membranes “
Peritrophic membranes are secretion products of the midgut. For long they have been related only to insects, but they occur widely in the animal kingdom. They effect a part of the gut lumen and function not only as a mechanical protection barrier, but also as an ultrafilter, a barrier to parasites, and as envelopes for fecal pellets. Such peritrophic envelopes are of great ecological importance in marine environments. The book is divided into the following themes: - Occurrence - Formation and Structure - Degradation - Chemical Composition - Functions. It is the first comprehensive compilation of all data concerning peritrophic membranes and will provide a basis for future researches in this up to now often neglected field.
Inhaltsverzeichnis zu „Peritrophic Membranes “
1. Introduction.- 2. Occurrence of Peritrophic Membranes.- 3. Formation and Structure.- 3.1 Beginning of Secretion of Peritrophic Membranes.- 3.2 Textures of Microfibrils.- 3.3 Formation of Peritrophic Membranes.- 4. Degradation of Peritrophic Membranes.- 5. Chemical Composition.- 5.1 General Remarks.- 5.2 Chitin.- 5.3 Proteins and Glycoproteins.- 5.4 Proteoglycans.- 6. Functions of Peritrophic Membranes.- 6.1 General Remarks.- 6.2 Lectins and the Association of Bacteria.- 6.3 Immobilized Enzymes.- 6.4 Permeability.- 6.5 Compartmentalization of the Midgut by Peritrophic Membranes.- 6.6 Peritrophic Membranes as a Barrier to Parasites.- 6.7 Fecal Pellets or Ecological Aspects of Peritrophic Membranes.- 6.8 Peritrophic Membranes Used as Cocoon Material for Pupation.- References.
Autoren-Porträt von Werner Peters
Dr. Werner Peters, geboren 1941 in Düsseldorf, studierte Altphilologie und Philosophie in Tübingen und Bonn, Abschluss mit der Promotion zum Dr. phil. 1967. Langjähriger Studienaufenthalt in den USA, u.a. an der Harvard Universität und als Assistent im US-Kongress. 1970 bis 1972 politischer Referent in der Bundesgeschäftsstelle der CDU in Bonn. Danach als selbstständiger Politikberater tätig. Seit 1983 Inhaber des Künstlerhotels "Chelsea" und des "Café Central" in Köln.
Bibliographische Angaben
- Autor: Werner Peters
- 2012, Softcover reprint of the original 1st ed. 1992, XII, 238 Seiten, Maße: 15,5 x 23,5 cm, Kartoniert (TB), Englisch
- Verlag: Springer, Berlin
- ISBN-10: 3642844162
- ISBN-13: 9783642844164
Sprache:
Englisch
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