Agelenids of the World

Systematics and Taxonomy of Agelenidae, a Worldwide distributed Spider Family

Comparative aspects of free amino acids in the central nervous system of spiders

Publication Type:Journal Article
Year of Publication:1980
Authors:W. Meyer, Poehling, H. M., Neuhoff, V.
Journal:Comparative Biochemistry and Physiology C Comparative Pharmacology
Date Published:1980
ISBN Number:0306-4492
Keywords:Araneae (Arachnida)., Araneae [Protein content / / Free amino acids, Biochemistry, Chemical composition, CNS] [Central nervous, Nervous system, system / / Free amino acid diversity].

The spectrum of free amino acids in the CNS of 6 spp. from 6 different spider families [Tegenaria derhami (Scopoli) (Agelenidae), Araneus diadematus Clerck (Araneidae), Pardosa amentata (Clerck) (Lycosidae), Marpissa muscosa (Clerck) (Salticidae), Latrodectus mactans tredecimguttatus Rossi (Theridiidae) and the orthognath species Aphonopelma eutylenum (Chamberlin) (Theraphosidae)] was analyzed by microchromatography of dansyl derivatives. Dansyl amino acids (23) were identified and the following ones were relatively abundant in all the species investigated: taurine, alanine, glycine, GABA, proline, glutamic acid and aspartic acid. Results are compared with findings from other arthropod subphyla, and the role of amino acids as putative neurotransmitters in the arthropod CNS is discussed.

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