Comparative respiratory physiology of a desert snail Rabdotus schiedeanus, and a garden snail, Helix aspersa

Riddle, Wayne A.

doi:10.1016/0300-9629(77)90251-1

Cited by 18 publications

(14 citation statements)

References 10 publications

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“…It is similar to other pulmonate snails in terms of both shell-free resting 1202, and the changes in ~rO 2 and haemolymph pH/PCO; that occur with estivation (Home 1973;Herreid 1977;Riddle 1977;Vorhaben et al 1984;Hand 1990, 1991;Barnhart 1992;Thomas and Agard 1992;Scholnick et al 1994). It is similar to other pulmonate snails in terms of both shell-free resting 1202, and the changes in ~rO 2 and haemolymph pH/PCO; that occur with estivation (Home 1973;Herreid 1977;Riddle 1977;Vorhaben et al 1984;Hand 1990, 1991;Barnhart 1992;Thomas and Agard 1992;Scholnick et al 1994).…”

Section: Discussionsupporting

confidence: 59%

Effectors of metabolic depression in an estivating pulmonate snail (Helix aspersa): whole animal and in vitro tissue studies

et al. 1996

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We have examined metabolic depression in the land snail (Helix aspersa) during estivation, and have developed a tissue model of metabolic depression using an in vitro mantle preparation. The metabolic rate of H. aspersa is depressed by 84% in vivo within 4 weeks of onset of estivation, and this metabolic depression is accompanied by a decrease in haemolymph PO2 and pH, and an increase in haemolymph PCO2. The in vitro mantle preparation has a stable O2 consumption and energy charge, and an energy charge similar to that of mantle in vivo. The in vitro mantle is an O2-conforming tissue, with VO2 varying curvilinearly with PO2. Consequently, we have developed a mathematical method of calculating tissue VO2 at any PO2. These calculations show that under appropriate incubation conditions of pH and PO2, the mantle from estivating animals shows a stable in vitro metabolic depression of 48% compared to mantle from control snails. The extrinsic effects of PO2 and pH account for 70% of the total in vitro metabolic depression of mantle tissue; intrinsic effectors contribute a further 30%.

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Section: Discussionsupporting

confidence: 59%

Effectors of metabolic depression in an estivating pulmonate snail (Helix aspersa): whole animal and in vitro tissue studies

et al. 1996

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“…This was confirmed for different morphs of Cepaea hortensis at the same temperatures (Steigen, ). In a comparative study on the desert snail Rabdotus schiedeanus and the garden snail Cornu aspersum , Riddle () found a general increase in oxygen consumption (as a proxy for metabolism) with increasing temperature up to 25°C. However, at high temperatures, warming may induce reduction of metabolic rates.…”

Section: Behavioral and Physiological Adaptationsmentioning

confidence: 99%

“…However, at high temperatures, warming may induce reduction of metabolic rates. For example, at or above 25°C, downregulation of metabolism occurs in Cornu aspersum , Trigonephrus sp., and Rabdotus schiedeanus (Dallas, Curtis, & Ward, ; Riddle, ); and for Xeropicta derbentina , the tipping point for metabolic downregulation was at 30°C (Fischbach, ). Decreasing metabolism at elevated temperatures may be a general phenomenon in land snails, serving to prepare them for entering estivation.…”

Section: Behavioral and Physiological Adaptationsmentioning

confidence: 99%

Snails in the sun: Strategies of terrestrial gastropods to cope with hot and dry conditions

Schweizer

Triebskorn

Köhler

2019

Ecology and Evolution

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Terrestrial gastropods do not only inhabit humid and cool environments but also habitat in which hot and dry conditions prevail. Snail species that are able to cope with such climatic conditions are thus expected to having developed multifaceted strategies and mechanisms to ensure their survival and reproduction under heat and desiccation stress. This review paper aims to provide an integrative overview of the numerous adaptation strategies terrestrial snails have evolved to persist in hot and dry environments as well as their mutual interconnections and feedbacks, but also to outline research gaps and questions that remained unanswered. We extracted relevant information from more than 140 publications in order to show how biochemical, cellular, physiological, morphological, ecological, thermodynamic, and evolutionary parameters contribute to provide an overall picture of this classical example in stress ecology. These mechanisms range from behavioral and metabolic adaptations, including estivation, to the induction of chaperones and antioxidant enzymes, mucocyte and digestive gland cell responses and the modification and frequency of morphological features, particularly shell pigmentation. In this context, thermodynamic constraints call for processes of complex adaptation at varying levels of biological organization that are mutually interwoven. We were able to assemble extensive, mostly narrowly focused information from the literature into a web of network parameters, showing that future work on this subject requires multicausal thinking to account for the complexity of relationships involved in snails' adaptation to insolation, heat, and drought.

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“…Aekerlund, 1974: McMahon & Russell Hunter, 977;Riddle, 1977;Brown et al, 1978;Shirley & Findley, 978;. However, no worker has yet documented the effects of endogenous neurohormonal or neurohumoral principles on the 02 consumption of these molluscs, eventhough the implication of hormonal regulation over 02 uptake has been reported for annelids (Kale & Rao, 973;Nagabhushanam & Hanumante, 1977;Kulkarni et al, 1978) and crustaceans (Silverthorn, 1975a;1975b;Hanumante et al, 979b).…”

Section: Introductionmentioning

confidence: 99%

Involvement of neurohormone in regulation of oxygen consumption in the marine gastropod, Onchidium verruculatum

1980

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Material and MethodsAblation of whole central nervous system (CNS) or pleurovisceral (PV) ganglia significantly inhibited 02 uptake, after 4 hr through 24 hr of the operation over sham controls. Replacement of PV in PV-less animals restored their metabolic rates to the normal level. 02 consumption of normal animals is significantly augmented by the macerates of CNS and PV, but not by cerebral and pleural ganglia, and body muscles. Reserpine was ineffective in lowering the 02 uptake of PV-removed animals unlike in normal, intact individuals. The possible implication of a neurohormone originating from PV ganglia controlling whole body 02 consumption, is discussed.

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Comparative respiratory physiology of a desert snail Rabdotus schiedeanus, and a garden snail, Helix aspersa

Cited by 18 publications

References 10 publications

Effectors of metabolic depression in an estivating pulmonate snail (Helix aspersa): whole animal and in vitro tissue studies

Effectors of metabolic depression in an estivating pulmonate snail (Helix aspersa): whole animal and in vitro tissue studies

Snails in the sun: Strategies of terrestrial gastropods to cope with hot and dry conditions

Involvement of neurohormone in regulation of oxygen consumption in the marine gastropod, Onchidium verruculatum

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