Das Schicksal der Nhrstoffe bei dem Flukrebs Orconectes limosus@@@The metabolic fate of nutrients in the crayfish, Orconectes limosus: II. Resorption U-14C-markierter Nhrstoffe und ihre Verteilung auf die Organe@@@II. Absorption of U-14C-labeled nutrients and their distribution among the organs

  title={Das Schicksal der Nhrstoffe bei dem Flukrebs Orconectes limosus@@@The metabolic fate of nutrients in the crayfish, Orconectes limosus: II. Resorption U-14C-markierter Nhrstoffe und ihre Verteilung auf die Organe@@@II. Absorption of U-14C-labeled nutrients and their distribution among the organs},
  author={U. Speck and K. Urich},
  journal={Journal of Comparative Physiology A-neuroethology Sensory Neural and Behavioral Physiology},
  • U. Speck, K. Urich
  • Published 1970
  • Biology
  • Journal of Comparative Physiology A-neuroethology Sensory Neural and Behavioral Physiology
Synthesis of digestive enzymes, food processing, and nutrient absorption in decapod crustaceans: a comparison to the mammalian model of digestion.
Decapods produce a broad range of digestive enzymes including chitinases, cellulases, and collagenases with unique properties, which are synthesized in the F-cells of the hepatopancreas and encoded in the genome as pre-pro-proteins. Expand
Functional cytology of the hepatopancreas of decapod crustaceans
  • G. Vogt
  • Biology, Medicine
  • Journal of morphology
  • 2019
The hepatopancreas of the Decapoda is most similar to the digestive gland of the Euphausiacea, supporting close taxonomic relationship of these two taxa. Expand
Response of facilitative glucose transporter 1 to salinity stress and dietary carbohydrate nutrition in white shrimp Litopenaeus vannamei
It is suggested that GLUT1 is a conserved protein in L. vannamei, and changes in expression due to environmental salinity and dietary carbohydrate level and source are suggested. Expand
Nutrient Absorption in Invertebrates
The sections in this article are: Modes of Nutrient Absorption, Kinetic and Energetic Aspects of Nutrients Transport, Experimental Systems Employed for the Measurement ofNutrient Transport, and Conclusion. Expand
Das Schicksal der Nährstoffe bei dem FlußkrebsOrconectes limosus
Summary1.U-14C-labelled glucose, amino acid mixture, palmitate, starch or protein were fed to the crayfish by means of a stomach catheter, 5 min to several hours after feeding determinations wereExpand
Der Stoffbestand des FlußkrebsesOrconectes limosus
Summary1.The quantitatively most important body constituents of freshly caught, male crayfish were determined at about monthly intervals from April 1969 until March 1971 except during the moultingExpand
Gesamtbestand an organischen Substanzen der Spinne Tegenaria atrica im Vergleich zu Protophormia terrae novae (Diptera) und Orconectes limosus (Crustacea, Decapoda)
Summary1.Whole bodies of the spider, Tegenaria atrica the fly, Protophormia terrae novae, and the crayfish, Orconectes limosus have been analyzed for their main organic constituents. The data areExpand
Life-cycle and functional cytology of the hepatopancreatic cells of Astacus astacus (Crustacea, Decapoda)
SummaryThe hepatopancreas of the freshwater crayfish Astacus astacus was reinvestigated by means of light and electron microscopy using refined techniques of tissue preservation. The resultsExpand
Lysine transport across the mucosal border of the perfused midgut in the freshwater shrimp,Macrobrachium rosenbergii
The results suggest that cationic amino acid influx in crustacean intestine appears similar to processes reported for these solutes from a large variety of cell types, the major difference found for the shrimp gut is the apparent adaptation of the high-affinity carrier process for very low lysine concentrations. Expand
D-glucose transport in decapod crustacean hepatopancreas.
  • T. Verri, A. Mandal, +7 authors C. Storelli
  • Biology, Medicine
  • Comparative biochemistry and physiology. Part A, Molecular & integrative physiology
  • 2001
Recent advances in the understandings of hepatopancreatic D-glucose transport are shown, as obtained after isolation of purified R, F, B, and E-cell suspensions from the whole organ by centrifugal elutriation, and by protein expression in hepatopANCreatic mRNA-injected Xenopus laevis oocytes. Expand


Das Kohlenhydratspektrum in den Organen des Flußkrebses Orconectes limosus und seine Veränderungen im Jahresablauf
  • U. Speck
  • Biology
  • Zeitschrift für vergleichende Physiologie
  • 2004
During the course of the year distinct changes can be noted regarding the total concentration and composition of carbohydrates; the accumulation was most intensiv during winter, depletion in early spring and molt did not cause a similar effect. Expand
Das Schicksal der Nährstoffe bei dem Flußkrebs Orconectes limosus: Einbau von Glucose-U-14C, Glutamat-U-14C und Palmitat-U-14C in die verschiedenen Stoffklassen
Summary1.The incorporation of glucose-U-14C, glutamate-U-14C or palmitate-U-14C into the body constituents of the crayfish, Orconectes limosus, has been determined 3 and 24 hours after injection intoExpand
Feinstruktur peritrophischer membranen
  • R. Georgi
  • Biology
  • Zeitschrift für Morphologie der Tiere
  • 2004
The peritrophic membranes, which is several groups of animals are produced by midgut epithelia, have been investigated most thoroughly in insects. The following results concern Crustacea: In theExpand
Molecular sieving of hydrophilic molecules by the rectal intima of the desert locust (Schistocerca gregaria).
The properties of cuticles from the rectum and the integument are compared and the role of the rectal intima in the excretory process in the desert locust is discussed. Expand
The functional anatomy of the digestive tract of a shrimp metapenaeus bennettae racek & dall (Crustacea: Decapoda: Penaeidae)
The anatomy of the proventriculus, digestive gland, midgut and its diverticula, and the rectum is described, and evidence for secretory functions of the midGut and anterior and posterior Diverticula is discussed. Expand
Intestinal absorption of sucrose in man: interrelation of hydrolysis and monosaccharide product absorption.
It was recently demonstrated that appreciable amounts of the hydrolysis products accumulate intraluminally during the process of sucrose absorption in man and that these monosaccharides appear to move back from their mucosal site of hy-drolysis to the lumen. Expand