Feeding Responses To Sucrose in the Pond Snail Lymnaea Stagnalis After Nerve Section and Tentacle Amputation

Jager, J. C.; Goldschmeding, J. T.

doi:10.1163/002829673x00238

Cited by 14 publications

(6 citation statements)

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“…The possible modalities include mechanosensation, chemosensation (de Vlieger, 1968;Jager, 1971;Goldschmeding and Jager, 1973;Janse, 1976;Lever, 1977;Zaitseva et al, 1987), and even photosensation (Chase, 1979;Stoll, 1979). The bipolar NOS-IR PSCs are probably chemosensory, based on physiological evidence (Elphick et al, 1995).…”

Section: Sensory Modalitiesmentioning

confidence: 99%

“…First, this species has been the subject of extensive prior anatomical work (e.g., Zylstra, 1972;Zaitseva and Bocharova, 1981;Croll and Chiasson, 1990;Elphick et al, 1995;Croll et al, 1999;Hatakeyama et al, 2007), thus providing the requisite background and tools for the present study. Second, the CSOs likely contain both chemosensory and mechanosensory PSCs (de Vlieger, 1968;Jager, 1971;Goldschmeding and Jager, 1973;Janse, 1976;Lever, 1977;Kemenes et al, 1986), thus providing a variety of sensory cell types to be identified. Moreover, examinations of feeding control in L. stagnalis have explored both mechanosensation and chemosensation mediated by the CSOs (Elphick et al, 1995;Staras et al, 1999;Kemenes et al, 2001), adding physiological relevance to our work.…”

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confidence: 99%

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Peripheral sensory cells in the cephalic sensory organs of Lymnaea stagnalis

Wyeth

Croll

2011

J of Comparative Neurology

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The peripheral nervous system in gastropods plays a key role in the neural control of behaviors, but is poorly studied in comparison with the central nervous system. Peripheral sensory neurons, although known to be widespread, have been studied in a patchwork fashion across several species, with no comprehensive treatment in any one species. We attempted to remedy this limitation by cataloging peripheral sensory cells in the cephalic sensory organs of Lymnaea stagnalis employing backfills, vital stains, histochemistry, and immunohistochemistry. By using at least two independent methods to corroborate observations, we mapped four different cell types. We have found two different populations of bipolar sensory cells that appear to contain catecholamines(s) and histamine, respectively. Each cell had a peripheral soma, an epithelial process bearing cilia, and a second process projecting to the central nervous system. We also found evidence for two populations of nitric oxide-producing sensory cells, one bipolar, probably projecting centrally, and the second unipolar, with only a single epithelial process and no axon. The various cell types are presumably either mechanosensory or chemosensory, but the complexity of their distributions does not allow formation of hypotheses regarding modality. In addition, our observations indicate that yet more peripheral sensory cell types are present in the cephalic sensory organs of L. stagnalis. These results are an important step toward linking sensory cell morphology to modality. Moreover, our observations emphasize the size of the peripheral nervous system in gastropods, and we suggest that greater emphasis be placed on understanding its role in gastropod neuroethology.

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Section: Sensory Modalitiesmentioning

confidence: 99%

mentioning

confidence: 99%

Peripheral sensory cells in the cephalic sensory organs of Lymnaea stagnalis

Wyeth

Croll

2011

J of Comparative Neurology

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“…The lips have a variety of sensory cells and nerve endings (Zijlstra, 1972; Zaitseva and Bocharova, 1981) and are innervated by the left and right median lip nerves, which form an extensive network of nerve endings (Nakamura et al, 1999a). Lesion studies have shown that the excitatory effect of sucrose on feeding movements of the buccal mass reaches the central nervous system through these nerves (e.g., Goldschmeding and Jager, 1973). In addition, the central pattern generator underlying feeding is studied using semi-intact preparations consisting of the lips, central nervous system, and buccal system (e.g., Nakamura et al, 1999b; Straub et al, 2004).…”

Section: Coordination Of Male and Female Behaviormentioning

confidence: 99%

Neuro-endocrine control of reproduction in hermaphroditic freshwater snails: mechanisms and evolution

Koene

2010

Front. Behav. Neurosci.

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Invertebrates are used extensively as model species to investigate neuro-endocrine processes regulating behaviors, and many of these processes may be extrapolated to vertebrates. However, when it comes to reproductive processes, many of these model species differ notably in their mode of reproduction. A point in case are simultaneously hermaphroditic molluscs. In this review I aim to achieve two things. On the one hand, I provide a comprehensive overview of the neuro-endocrine control of male and female reproductive processes in freshwater snails. Even though the focus will necessarily be on Lymnaea stagnalis, since this is the best-studied species in this respect, extensions to other species are made wherever possible. On the other hand, I will place these findings in the actual context of the whole animal, after all these are simultaneous hermaphrodites. By considering the hermaphroditic situation, I uncover a numbers of possible links between the regulation of the two reproductive systems that are present within this animal, and suggest a few possible mechanisms via which this animal can effectively switch between the two sexual roles in the flexible way that it does. Evidently, this opens up a number of new research questions and areas that explicitly integrate knowledge about behavioral decisions (e.g., mating, insemination, egg laying) and sexual selection processes (e.g., mate choice, sperm allocation) with the actual underlying neuronal and endocrine mechanisms required for these processes to act and function effectively.

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“…Despite the accumulated evidence, there has been little to no study of neural responses to odors that might be used for navigation. Rather, efforts have focused on responses to feeding stimulants, particularly sucrose (Goldschmeding & Jager, 1973; Kemenes, 1994; Kemenes et al, 1986; Nakamura, Kojima, et al, 1999). Only one study to date has found chemosensory afference in the tentacle nerve of L. stagnalis , in response to both sucrose and amyl acetate (Straub et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…Rather, efforts have focused on responses to feeding stimulants, particularly sucrose (Goldschmeding & Jager, 1973;Kemenes, 1994;Kemenes et al, 1986;. Only one study to date has found chemosensory afference in the tentacle nerve of L. stagnalis, in response to both sucrose and amyl acetate (Straub et al, 2004).…”

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confidence: 99%

Chemosensory afference in the tentacle nerve of Lymnaea stagnalis

Ucciferri,

Wyeth

2023

Invertebrate Biology

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Although the neural control of behavior has been extensively studied in gastropods, basic gaps remain in our understanding of how sensory stimuli are processed. In particular, there is only patchy evidence regarding the functional roles of sense organs and the extensive peripheral nervous system they contain. Our goal was to use extracellular electrophysiological recordings to confirm the chemosensory role of the tentacles in the great pond snail, Lymnaea stagnalis. Employing a special twin‐channel suction electrode to improve signal‐to‐noise ratio, we applied three food odors (derived from earthworm‐based food pellets, algae‐based pellets, and fresh lettuce) to a reduced preparation of the tentacle while recording neuronal activity in the tentacle nerve. Responses were assessed by comparing average spike frequencies produced in response to saline flow with and without odors. We report stronger neuronal responses to earthworm‐based food odors and weaker responses to algae‐based food odors. There were no clear neuronal responses produced when lettuce food odor or control saline was applied to the tentacle. Overall, our results provide strong evidence for the chemosensory role of the tentacles in navigation behavior by L. stagnalis. Although it is unclear whether the differences in neuronal responses to different odors are a technical consequence of our recording system or a genuine feature of the snail sensory system, these results are a useful foundation for further study of peripheral nervous system function in gastropods.

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Feeding Responses To Sucrose in the Pond Snail Lymnaea Stagnalis After Nerve Section and Tentacle Amputation

Cited by 14 publications

References 0 publications

Peripheral sensory cells in the cephalic sensory organs of Lymnaea stagnalis

Peripheral sensory cells in the cephalic sensory organs of Lymnaea stagnalis

Neuro-endocrine control of reproduction in hermaphroditic freshwater snails: mechanisms and evolution

Chemosensory afference in the tentacle nerve of Lymnaea stagnalis

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