Werner Peters
Springer Berlin Heidelberg
0e druk, 2012
9783642844164
Peritrophic Membranes
Specificaties
Paperback, 238 blz.
|
Engels
Springer Berlin Heidelberg |
0e druk, 2012
ISBN13: 9783642844164
Rubricering
Onderdeel van serie
Zoophysiology
Levertijd ongeveer 8 werkdagen
Samenvatting
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.
Specificaties
ISBN13:9783642844164
Taal:Engels
Bindwijze:paperback
Aantal pagina's:238
Uitgever:Springer Berlin Heidelberg
Druk:0
Serie:Zoophysiology
Inhoudsopgave
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.