Caenorhabditis elegans: localization of cholinesterase associated with anterior nematode structures. |
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| Authors: | R Pertel N Paran C F Mattern |
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| Affiliation: | 1. Section on Growth and Differentiation, Laboratory of Parasitic Diseases National Institutes of Health, U.S. Department of Health, Education and Welfare, Bethesda, Maryland 20014 U. S. A.;2. Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, Public Health Service, National Institutes of Health, U.S. Department of Health, Education and Welfare, Bethesda, Maryland 20014 U. S. A. |
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| Abstract: | By employing a histochemical procedure on adult nematodes, the base of the Caenorhabditis elegans amphid appears to contain acetylcholinesterase and a nonspecific cholinesterase. Some precipitation was observed in the kinetosome region of the inner labial papilla with acethylthiocholine (AtCh) as substrate but not, in limited observations, in the absence of substrate or with butyrylthiocholine (BtCh). The amphidial tips, the tips of the inner labial papillae, and the lining of the buccal cavity contained substantial reaction product at the ultrastructural level, with or without substrates and inhibitors and therefore cannot be related to the presence of a cholinesterase. |
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| Keywords: | Nematoda Soil nematode cholinesterases Acetylcholinesterase (EC 3.1.1.7, AChE) Amphids Papillae Buccal lining Ultrastructure EC 3.1.1.7 (acetylcholinesterase) |
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