منابع مشابه
Chemosensitivity of the osphradium of the pond snail Lymnaea stagnalis
The osphradium of the pond snail Lymnaea stagnalis was studied to determine the stimuli to which this organ responds. The following stimuli were tested: hypoxia, hypercapnia, a mixture of amino acids, a mixture of citralva and amyl acetate and a mixture of lyral, lilial and ethylvanillin. The mean nerve activity consistently increased with elevated PCO2, whereas hypoxia produced variable effect...
متن کاملOn the Ultrastructure and Function of Rhogocytes from the Pond Snail Lymnaea stagnalis
Rhogocytes, also termed "pore cells", occur as solitary or clustered cells in the connective tissue of gastropod molluscs. Rhogocytes possess an enveloping lamina of extracellular matrix and enigmatic extracellular lacunae bridged by cytoplasmic bars that form 20 nm diaphragmatic slits likely to act as a molecular sieve. Recent papers highlight the embryogenesis and ultrastructure of these cell...
متن کاملOptimizing the design of a reproduction toxicity test with the pond snail Lymnaea stagnalis.
This paper presents the results from two ring-tests addressing the feasibility, robustness and reproducibility of a reproduction toxicity test with the freshwater gastropod Lymnaea stagnalis (RENILYS strain). Sixteen laboratories (from inexperienced to expert laboratories in mollusc testing) from nine countries participated in these ring-tests. Survival and reproduction were evaluated in L. sta...
متن کاملNeurophysiological correlates of unconditioned and conditioned feeding behavior in the pond snail Lymnaea stagnalis.
We used a behavioral appetitive learning paradigm followed by electrophysiological analysis to investigate the neuronal expression of appetitive conditioning in Lymnaea. We first established the levels of unconditioned and conditioned feeding responses in intact animals. We then demonstrated that neuronal correlates of both unconditioned responses to touch and food and a conditioned response to...
متن کاملProtein synthesis during the first three cleavages in pond snail eggs (Lymnaea stagnalis).
Egg cells of the pond snail Lymnaea stagnalis were isolated and reared in an inorganic medium, in which they readied the blastula stage with the same rate and yield as in the egg capsules. Syn chrony of cell division was 70 — 90% depending on temperature and number of cell division. 3H-leucine incorporation into hot TCA-insoluble material as a function of developmental stage was studied by aut...
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ژورنال
عنوان ژورنال: EvoDevo
سال: 2020
ISSN: 2041-9139
DOI: 10.1186/s13227-020-00169-4