The osphradium is involved in the control of egg-laying in the pond snail<i>Lymnaea stagnalis</i>

Nezlin, Leonid P.

doi:10.1080/07924259.1997.9672618

Cited by 7 publications

(4 citation statements)

References 15 publications

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“…Haszprunar (1987a) also suggested a chemosensory function associated reproduction by synchronizing gamete release in broadcasting taxa. More recently, Beninger et al (1995) have also suggested a similar role in scallops and Nezlin (1997) experimentally demonstrated a significant change in egg output in lymnaeid gastropods with and without an osphradium. However, in an elegant set of controlled experiments including ablation of the osphradial nerve, Karnik et al, (2012) demonstrated the lymnaeid osphradium also has an important role in long term memory enhancement associated with potential predators' (crayfish) kairomones.…”

Section: Functionmentioning

confidence: 93%

What is the molluscan osphradium? A reconsideration of homology

Lindberg

Sigwart

2015

Zoologischer Anzeiger - A Journal of Comparative Zoology

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Section: Functionmentioning

confidence: 93%

What is the molluscan osphradium? A reconsideration of homology

Lindberg

Sigwart

2015

Zoologischer Anzeiger - A Journal of Comparative Zoology

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“…Nezlin et al (1994): Lymnaea (distribution of neuroactive substances). Nezlin (1997): Lymnaea (osphradium involved in the control of egg-laying). Wedemeyr & Schild (1995): Lymnaea (chemoreception, olfaction, and detection of CO 2 levels).…”

Section: Pulmonata Near Inner Edge Of Pulmonary Opening When Presentmentioning

confidence: 99%

“…In most aquatic gastropods the osphradium has generally been implicated as an important organ in chemoreception (e.g., Fretter & Graham 1962). Although there have been a number of seminal studies on the structure of the osphradium (e.g., Spengel 1881;Bernard 1887Bernard , 1890Pelseneer 1893;Stork 1935;Storch 1972;Crisp 1973;Sokolov & Kamardin 1977;Maeda 1983;Haszprunar 1985aHaszprunar ,b, 1986Taylor & Miller 1989), remarkably few studies demonstrate osphradial function (see also reviews by Demal 1955;Kohn 1961;Charles 1966;Croll 1983;Dorsett 1986;Haszprunar 1987a;Nezlin 1997). Hulbert & Yonge (1937) proposed a mechanoreceptor function in which the osphradium was utilized primarily to detect sediment in inhalant water (see also Yonge 1947, Charles 1966.…”

Section: Stylommatophora Osphradium Absentmentioning

confidence: 99%

The influence of classification on the evolutionary interpretation of structure a re-evaluation of the evolution of the pallial cavity of gastropod molluscs

Lindberg

2001

Organisms Diversity & Evolution

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“…Either or both of the following processes could sustain the former statement: the releasing of an inhibitory substance into the water and/or a direct inhibition that may take place, for instance, during copulation. The relationship between water chemical composition and reproduction has been investigated by Nezlin (1997), who states that the ablation of the osphradium (a chemosensory organ) resulted in a significant increase of the egg laying activity in Lymnaea stagnalis. Osphradia are generally believed to be chemoreceptors, acting to test the composition of the incoming current (Hyman 1967).…”

Section: Discussionmentioning

confidence: 99%

The effect of isolation on the life-history traits of Pseudosuccinea columella (Pulmonata: Lymnaeidae)

Gutiérrez

Perera

Yong

et al. 2001

Mem. Inst. Oswaldo Cruz

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Growth, survival and reproduction in the family Lymnaedae (Mollusca: Prosobranchia) have been widely studied. Snails of this taxon are known to be hermaphrodites and to reproduce both by selffertilization (selfing) and outcrossing. The proportion of selfing in natural populations of lymnaeid snails is to our knowledge unknown, but presumably more important in small populations and in stable environments.Pseudosuccinea columella (Say 1817) is in importance the second intermediate host of the trematode Fasciola hepatica Linnaeus, 1758 in Cuba (Mauri 1981). As this parasite is the causal agent of fasciolosis, a disease that affects domestic animals as well as people, the study of its hosts' biology may help the control of its transmission.Several studies have been published on the demography of lymnaeids (Vergani 1955, DeWitt & Sloan 1958, Malek & Chrosciechowski 1964, Martinez & Miranda 1968, Morales et al. 1983, 1985). Regarding Cuban populations, some studies compare the biology of P. columella with that of Fossaria cubensis, the most important intermediate host of F. hepatica, (Ferrer et al. 1988(Ferrer et al. , 1989) and other works emphasize on the biology and demography of F. cubensis (Yong et al. 1996). However, most of the previous papers based their results on groups of snails, where competition for available resources takes place. groups, sometimes deviations of expected results have been observed as populations grow older and their size is reduced due to the death of some snails. The present research aims to report on the life-history traits of P. columella under the effect of complete isolation, fertilization being accomplished only by selfing; compared to snails raised together with a conspecific partner, allowed to both crossand self-fertilization and where intra-specific communication takes place. MATERIALS AND METHODSThe parental snails for the study were collected from a temporary pond in La Palma municipality, Pinar del Rio Province, located west of the island of Cuba. The specimens were removed from their habitat with a hand sieve, sampling the bottom as well as the vegetation present on the shores, then taken to the laboratory on wet filter paper inside plastic cases. Upon arrival to the laboratory all snails (60 in total) were placed in a petri dish (PYREX® USA, 88 ml of water volume) for 15 days with a pool of algae of the genera Lyngbya, Leptolyngbya, Phormidium and Schimidleinema as the food source. After seven days a number of egg masses was removed and placed into another similar dish, then 40 newly hatched snails were randomly selected for the life tables experiment. Twenty newly-hatched individuals (isolated snails) were raised in complete isolation (one snail per dish) and the other 20 (paired snails) were grown in pairs (two snails per dish).The age zero of the experiment was considered as the week when all 40 newly hatched snails emerged from their egg masses. All mollusks were raised using the petri dishes and pool of algae mentioned above as container and food source respectively ...

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The osphradium is involved in the control of egg-laying in the pond snailLymnaea stagnalis

Cited by 7 publications

References 15 publications

What is the molluscan osphradium? A reconsideration of homology

What is the molluscan osphradium? A reconsideration of homology

The influence of classification on the evolutionary interpretation of structure a re-evaluation of the evolution of the pallial cavity of gastropod molluscs

The effect of isolation on the life-history traits of Pseudosuccinea columella (Pulmonata: Lymnaeidae)

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