Lessons from snail tentacles

Chase, Ronald

doi:10.1093/chemse/11.4.411

Cited by 77 publications

(67 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Previously, we have demonstrated that the procerebrum (PC) is necessary for odor-aversion learning in Limax (Kasai et al, 2006). The PC receives olfactory sensory inputs from both STs and ITs (Chase, 1986;Gelperin et al, 1993;Chase and Tolloczko, 1993;Kimura et al, 1998). However, it is not known which sensory pathways, STs or ITs, are used during either the acquisition or the retrieval of olfactory aversive memory.…”

Section: Introductionmentioning

confidence: 99%

Redundancy of olfactory sensory pathways for odor-aversion memory in the terrestrial slug Limax valentianus

Yamagishi

Ito

Matsuo

2008

Journal of Experimental Biology

View full text Add to dashboard Cite

Terrestrial slugs Limax valentianus (Férussac 1822) (12-16 weeks post hatching) have been maintained in our laboratory at 19°C for at least nine generations as a closed colony. They have been fed only on a diet of humidified powder mixture consisting of 521·g rat chow (Oriental Yeast, Tokyo, Japan), 500·g wheat starch (Wako Pure Chemicals, Osaka, Japan) and 21·g vitamins (Oriental Yeast). Accepted 1 April 2008 SUMMARY Terrestrial slugs have the ability to learn and remember a food odor paired with an aversive stimulus. Olfaction in slugs involves the tips of two pairs of tentacles, the superior and the inferior tentacles. Sensory nerves in both pairs of the tentacles transmit olfactory information to the structure in the CNS, the procerebrum where learning and memory formation occur. We investigated the role of each pair of tentacles in odor-aversion learning, and examined the ability of slugs to recall memory after selective surgical amputation. Our results show that memory formation was not altered by the amputation of either one of the pairs before or after odor-aversion learning, while the odor sensibility of the slugs was maintained. These data suggest that either pair of tentacles is sufficient for the acquisition and retrieval of aversive olfactory memory.

show abstract

Section: Introductionmentioning

confidence: 99%

Redundancy of olfactory sensory pathways for odor-aversion memory in the terrestrial slug Limax valentianus

Yamagishi

Ito

Matsuo

2008

Journal of Experimental Biology

View full text Add to dashboard Cite

show abstract

“…The active snail continuously scans the environment and at a hint of danger withdraws its tentacles rapidly. The tentacle withdrawal is robust and the fastest movement among the entire snail's motor behaviors [8]. In case of most of the terrestrial snails the retraction is accompanied by inversion of the outer skin surfaces suggesting the participation both of tegumentum and the tentacle retractor muscles.…”

Section: Flexor Muscles Play An Essential Role In Spatial and Temporamentioning

confidence: 98%

Anatomical and physiological background permitting spatial odor sensation in stylommatophoran molluscs

Kiss

Krajcs

2016

Acta Biologica Hungarica

View full text Add to dashboard Cite

Earlier experiments demonstrated that in order to place protracted tentacles and thereby olfactory receptors in an appropriate position for optimal perception of odor stimuli extraordinary complex movements are required. Until recently both large scale tentacle movements and patterned tentacle movements have been attributed to the concerted involvement of the tentacle retractor muscle and muscles of tegumentum. Recently the existence of three novel muscles in the posterior tentacles of Helix has been discovered. The present review, based on experimental data obtained by our research group, outlines the anatomy, physiology and pharmacology of these muscles that enable the tentacles to execute complex movements observed during foraging both in naïve and food-conditioned snails. Our findings are also compared as far as possible with earlier and recent data obtained on innervation characteristics and pharmacology of molluscan muscles.

show abstract

“…Gastropods sense many features about their environment and some can follow mucus trails and chemical odours in freshwater, marine and terrestrial systems (Chase et al 1978;Chase 1986;Tankersley 1989;Levri 1998;Davies and Knowles 2001). Gastropods can track odours in air using both tropotaxis and anemotaxis (Chase and Croll 1981;Lemaire and Chase 1998).…”

Section: Introductionmentioning

confidence: 99%

Untitled

Davis¹

2004

Molluscan Res.

View full text Add to dashboard Cite

Some gastropods are able to find food sources by following airborne chemical plumes using both tropotaxis and anemotaxis. This study examined odour tracking to food odours with a species of terrestrial gastropod, Meridolum gulosum (Gould, 1864), a native to rainforests in coastal south-eastern New South Wales, Australia. It was demonstrated that M. gulosum moves towards food odours (fungus) in still air, and holds its tentacles at characteristic angles when moving towards an odour source. This snail can detect odours at least 12 cm away from the source in air.

show abstract

Lessons from snail tentacles

Cited by 77 publications

References 0 publications

Redundancy of olfactory sensory pathways for odor-aversion memory in the terrestrial slug Limax valentianus

Redundancy of olfactory sensory pathways for odor-aversion memory in the terrestrial slug Limax valentianus

Anatomical and physiological background permitting spatial odor sensation in stylommatophoran molluscs

Untitled

Contact Info

Product

Resources

About