Abstract
1. 1. An analysis of the physiological (free) amino acids in the central nervous system of the tarantula spiders, Aphonopelma chalcodes and Dugesiella echina (Theraphosidae) was conducted. 2. 2. Nitrogenous waste products (ammonia and urea) together comprised 56% of the total ninhydrin-positive compounds in A. chalcodes and 55% in D. echina. 3. 3. GABA accounted for 6% of the total ninhydrin-positive compounds in the CNS of A. chalcodes, and 7% in D. echina. 4. 4. GABA, aspartate, taurine, glycine and glutamate (which have been shown to function as neurotransmitters and/or comodulators of NT activity) together comprised 25% of the total ninhydrin-positive compounds. 5. 5. The most abundant amino acids were proline, alanine, glutamate and aspartate. Glutamate and aspartate concentrations in the CNS of the more primitive theraphosids are lower than those found in web-building spiders.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Comparative Biochemistry and Physiology. Part C, Comparative Pharmacology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
