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1994 (1)
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1Author    Dettmar Von WachtendonkRequires cookie*
 Title    in the Haemolymph of the Mussel M ytilus edulis  
 Abstract    A Cholinesterase deriving from the hemolymph of the mussel M ytilus edulis was partially purified by use of gel-permeation and ion-exchange chromatography; the speci-fity to different substrates or inhibitors indicates clearly the occurrence of a "true" acetylcholinesterase. 
  Reference    (Z. Naturforsch. 31c, 333 [1976]; received October 20 1975/February 9 1976) 
  Published    1976 
  Keywords    M ytilu s edulis, Hemolymph, Acetylcholinesterase, Specificity, Inhibition 
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 TEI-XML for    default:Reihe_C/31/ZNC-1976-31c-0333_n.pdf 
 Identifier    ZNC-1976-31c-0333_n 
 Volume    31 
2Author    U. HoegerRequires cookie*
 Title    Fate of Circulating Serotonin in the Hemolymph of the Crayfish, Orconectes limosus  
 Abstract    The fate of injected [14C]serotonin (0.1 nCi/1.6nmol per animal) was investigated in the crayfish Orconectes limosus after injection. Specific radioactivities reached highest values in the green gland, followed by intestine, gills, nervous tissue and digestive gland. Label accumu­ lation was lowest in the tail muscle. Cold serotonin injected into the hemolymph (50 nmol/100 g wet wt) was cleared with a mean half life of 12.9 +/— 2.6 min (15 °C; N = 5). By HPLC separation of hemolymph samples taken at intervals after the injection of [l4C]serotonin, the formation of a metabolic product could be demonstrated. The formation of the metabolite was not, however, detectable by na­ tive fluorescence, suggesting the metabolic breakdown of the indole ring. The combined amounts of acid soluble radioactivity recovered from hemolymph, green gland, digestive gland and intestine yielded 80-100%, 50-70% and 30-50% of the injected dose after 7 min, 1 h, and 4 h, respectively. Since other tissues did not account for the balance and less than 5% of the injected label had been excreted into the medium after 4 h the results suggest the gradual incorporation of the metabolites into the tissues. 
  Reference    Z. Naturforsch. 45c, 1053 (1990); received April 17/June 25 1990 
  Published    1990 
  Keywords    Crustacea, Orconectes limosus, Serotonin Degradation, Hemolymph 
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 TEI-XML for    default:Reihe_C/45/ZNC-1990-45c-1053.pdf 
 Identifier    ZNC-1990-45c-1053 
 Volume    45 
3Author    T. Shimizu, N. TakedaRequires cookie*
 Title    Arom atic Amino Acid and Amine Levels in the Hemolymph of Parasitized and Unparasitized Larvae of M ythim na separata  
 Abstract    The levels of aromatic amino acids and amines in the hemolymph of larvae of the common armyworm, My­ thimna separata, were analyzed after parasitization by the braconid wasp, Apanteles kariyai. Methyldopa, homovanillic acid, tryptophan and tyrosine remained unchanged in unparasitized and parasitized larvae. Dop­ amine and DOPA showed characteristic changes at pupation that were associated with the hardening and darkening of the cuticle; Dopamine in the hemolymph of unparasitized last instar larvae increased before pu­ pation. Large increases in kynurenine and octopamine were detected in parasitized larvae. The increased level of octopamine in the hemolymph may be stress related. 
  Reference    Z. Naturforsch. 49c, 693—69 (1994); received April 5 1994 
  Published    1994 
  Keywords    Aromatic Amino Acid, Aromatic Amine, Hemolymph, Mythimna separata, Apanteles kariyai 
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 TEI-XML for    default:Reihe_C/49/ZNC-1994-49c-0693_n.pdf 
 Identifier    ZNC-1994-49c-0693_n 
 Volume    49