Results 101 to 110 of about 202 (135)
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Physiological activity of the ichthyotoxin from Prymnesium parvum
Toxicon, 1965Abstract The toxin of Prymnesium parvum (Chrysophyceae) blocks neuromuscular transmission in the frog sartorius preparation, while nerve and muscle remain directly excitable. The toxin acts as a non-depolarizing blocking agent on the postsynaptic membrane of the end-plate. In crayfish and lobster deep abdominal extensors, neuromuscular transmission
I, Parnas, B C, Abbott
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Eel's serum or serum anguillæ ichthyotoxin[ * ]
The British Homoeopathic Journal, 1961exaly +2 more sources
Journal of Organic Chemistry, 1998
Lipogrammistin-A (1b) was isolated as an ichthyotoxic and hemolytic constituent of the skin mucus of the grammistid fish Aulacocephalus temmincki. Its absolute stereochemistry was established by chemical degradation and total synthesis. The stereochemistry of the 2-methylbutyryl moieties attached to N9 and N15 was determined to be S by HPLC analysis of
Nobuaki Matsumori, Kazuo Tachibana
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Lipogrammistin-A (1b) was isolated as an ichthyotoxic and hemolytic constituent of the skin mucus of the grammistid fish Aulacocephalus temmincki. Its absolute stereochemistry was established by chemical degradation and total synthesis. The stereochemistry of the 2-methylbutyryl moieties attached to N9 and N15 was determined to be S by HPLC analysis of
Nobuaki Matsumori, Kazuo Tachibana
exaly +2 more sources
Eel serum or Serum Anguillae Ichthyotoxin
The British Homoeopathic Journal, 1979exaly +2 more sources
Growth of Prymnesium parvum in the Dark; Note on Ichthyotoxin Formation*
The Journal of Protozoology, 1965SYNOPSIS. For the first time the chrysomonad Prymnesium parvum was grown in the dark; glycerol was necessary and could not be replaced by any other metabolite tested. The dark‐grown cultures, as compared to light‐grown ones, atteined an almost 2‐fold optical density per cell number, caused possibly by a partial pigment‐bleaching in the light or a ...
M, Rahat, T L, Jahn
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Mode of Action of Prymnesium parvum Ichthyotoxin
Journal of Eukaryotic Microbiology, 1966SYNOPSIS. The mechanism of Prymnesium parvum ichthyotoxicity was studied in immersed minnows (Gambusia affinis) in the presence of various synergists (especially polyamines and invert soaps) and under varying conditions of pH and salinity. The effect of immersion in toxin‐synergist solution on permeability of gill tissues to trypan blue and to ...
SHIMON ULITZUR, MOSHE SHILO
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Physical and Chemical Stability of Ichthyotoxin(s) Produced by Gymnodinium Breve
Environmental Letters, 1972Abstract The physical and chemical stability of the ichthyotoxin(s) produced by the Florida Red Tide organism Gymnodinium breve has been examined. The toxin is acid stable, base labile, and rapidly inactivated at temperatures greater than 70°C. The half life of the toxin at 80°C is 0.5 hr.
M T, Doig, D F, Martin
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Ciguatoxins are potent ichthyotoxins
Toxicon, 1992The ciguatoxins are lipid soluble polyether compounds which have structural and biochemical features in common with the brevetoxins. Pure ciguatoxin-1, ciguatoxin-2 or brevetoxin-2 added to water containing Gambusia affinis induced similar signs, including pronounced opercular movement and uncoordinated swimming preceding death. The estimated LD50s (48
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Pavoninins: Shark-Repelling Ichthyotoxins from the Defense Secretion of the Pacific Sole
Science, 1984A series of ichthyotoxic and hemolytic steroid aminoglycosides, pavoninins-1 to -6, has been isolated from the defense secretion of the sole Pardachirus pavoninus , and their respective chemical structures have been established by spectroscopic studies and chemical conversions.
K, Tachibana +2 more
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Toxicology and Applied Pharmacology, 1963
Abstract A solution of the ichthyotoxin from Prymnesium parvum is depleted by contact with living fish, which absorb the toxin into their circulation. Toxin, injected intraperitoneally or subcutaneously, does not require addition of calcium ions for its effect.
F, BERGMANN, I, PARNAS, K, REICH
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Abstract A solution of the ichthyotoxin from Prymnesium parvum is depleted by contact with living fish, which absorb the toxin into their circulation. Toxin, injected intraperitoneally or subcutaneously, does not require addition of calcium ions for its effect.
F, BERGMANN, I, PARNAS, K, REICH
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