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Baz ES, Hussein AAA, Vreeker EMT, Soliman MFM, Tadros MM, El-Shenawy NS, Koene JM. Consequences of artificial light at night on behavior, reproduction, and development of Lymnaea stagnalis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 307:119507. [PMID: 35609841 DOI: 10.1016/j.envpol.2022.119507] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 04/30/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Light is an important zeitgeber that regulates many behavioral and physiological processes in animals. These processes may become disturbed due to the changes in natural patterns of light and dark via the introduction of artificial light at night (ALAN). The present study was designed to determine the effect of possible consequences of ALAN on reproduction, hatching success, developmental success, growth rate, feeding rate, mortality rate, and locomotor activity of the simultaneous hermaphrodite pond snail Lymnaea stagnalis. Snails were exposed to different light intensities at night that simulate actual ALAN measurements from the snail's night environment. The data revealed that exposure to ALAN at a low level significantly affected the cumulative number of laid eggs. At the same time, snails exposed to ALAN laid smaller eggs than those laid under normal light-dark cycles. Additionally, high light-intensity of ALAN delayed development and hatching of eggs of L. stagnalis while it showed no effect on hatching percentage. Furthermore, ALAN increased both the feeding and growth rates but did not lead to mortality. The results also show that snails exposed to dark conditions at night travel longer distances and do so faster than those exposed to ALAN. In light of these findings, it is clear that ALAN may have an influence on snails and their abundance in an environment, possibly disturbing ecological stability.
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Affiliation(s)
- El-Sayed Baz
- Zoology Department, Faculty of Science, Suez Canal University, 41522, Ismailia, Egypt
| | - Ahmed A A Hussein
- Zoology Department, Faculty of Science, Suez Canal University, 41522, Ismailia, Egypt; Department of Ecological Science, Faculty of Science, Vrije Universiteit, De Boelelaan 1085, 1081, Amsterdam, the Netherlands; Department of Malacology, Theodor Bilharz Research Institute (TBRI), 30 Imbaba, 12411, Giza, Egypt.
| | - Edith M T Vreeker
- Department of Ecological Science, Faculty of Science, Vrije Universiteit, De Boelelaan 1085, 1081, Amsterdam, the Netherlands
| | - Maha F M Soliman
- Zoology Department, Faculty of Science, Suez Canal University, 41522, Ismailia, Egypt
| | - Menerva M Tadros
- Department of Malacology, Theodor Bilharz Research Institute (TBRI), 30 Imbaba, 12411, Giza, Egypt
| | - Nahla S El-Shenawy
- Zoology Department, Faculty of Science, Suez Canal University, 41522, Ismailia, Egypt
| | - Joris M Koene
- Department of Ecological Science, Faculty of Science, Vrije Universiteit, De Boelelaan 1085, 1081, Amsterdam, the Netherlands
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2
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Vehovszky Á, Horváth R, Farkas A, Győri J, Elekes K. The allelochemical tannic acid affects the locomotion and feeding behaviour of the pond snail, Lymnaea stagnalis, by inhibiting peripheral pathways. INVERTEBRATE NEUROSCIENCE : IN 2019; 19:10. [PMID: 31435741 PMCID: PMC6704085 DOI: 10.1007/s10158-019-0229-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 07/22/2019] [Indexed: 01/09/2023]
Abstract
(1) The effect of tannic acid (TA), a dominant component of plant allelochemicals, was investigated on the locomotion and feeding of the pond snail, Lymnaea stagnalis. The effect of TA on the neuronal background underlying feeding activity was also analysed. (2) TA affected the spontaneous locomotion and of juvenile snails in a concentration-dependent way. Low (10 μM) TA concentration resulted in an increased (sliding or swimming) activity compared to the control; meanwhile, high (100 μM) TA concentration inhibited the locomotion of the animals. (3) Low (10 μM) TA concentration increased the frequency of sucrose-evoked feeding of intact animals, whereas high (100 μM) TA concentration resulted in significantly longer feeding latency and decreased feeding rate. The feeding changes proved to be partially irreversible, since after 48 h maintained in clear water, the animals tested in 100 μM TA previously still showed lower feeding rate in sucrose. (4) Electrophysiological experiments on semi-intact preparations showed that application of 100 μM TA to the lip area inhibited the fictive feeding pattern of central neurons, the cellular response to sucrose. (5) On isolated CNS preparation, 100 μM TA applied in the bathing solution, however, failed to inhibit the activation of the central feeding (CPG) interneurons following application of extracellular dopamine. Our results suggest that TA affects both afferent and efferent peripheral functions in Lymnaea. TA reduces feeding activity by primarily blocking feeding sensory pathways, and its negative effect on locomotion may imply sensory pathways and/or ciliary activity.
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Affiliation(s)
- Ágnes Vehovszky
- MTA Centre for Ecological Research, Balaton Limnological Institute, Tihany, 8237, Hungary.
| | - Réka Horváth
- MTA Centre for Ecological Research, Balaton Limnological Institute, Tihany, 8237, Hungary
| | - Anna Farkas
- MTA Centre for Ecological Research, Balaton Limnological Institute, Tihany, 8237, Hungary
| | - János Győri
- MTA Centre for Ecological Research, Balaton Limnological Institute, Tihany, 8237, Hungary
| | - Károly Elekes
- MTA Centre for Ecological Research, Balaton Limnological Institute, Tihany, 8237, Hungary
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3
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Kiss T. Do terrestrial gastropods use olfactory cues to locate and select food actively? INVERTEBRATE NEUROSCIENCE 2017; 17:9. [PMID: 28688004 DOI: 10.1007/s10158-017-0202-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 06/29/2017] [Indexed: 10/19/2022]
Abstract
Having been investigated for over 40 years, some aspects of the biology of terrestrial gastropod's olfactory system have been challenging and highly contentious, while others still remain unresolved. For example, a number of terrestrial gastropod species can track the odor of food, while others have no strong preferences toward food odor; rather they find it by random encounter. Here, while assessing the most recent findings and comparing them with earlier studies, the aspects of the food selection based on olfactory cues are examined critically to highlight the speculations and controversies that have arisen. We analyzed and compared the potential role of airborne odors in the feeding behavior of several terrestrial gastropod species. The available results indicate that in the foraging of most of the terrestrial gastropod species odor cues contribute substantially to food finding and selection. The results also suggest, however, that what they will actually consume largely depends on where they live and the species of gastropod that they are. Due to the voluminous literature relevant to this object, this review is not intended to be exhaustive. Instead, I selected what I consider to be the most important or critical in studies regarding the role of the olfaction in feeding of terrestrial gastropods.
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Affiliation(s)
- Tibor Kiss
- Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Klebelsberg Kuno Str. 2-3, Tihany, 8237, Hungary.
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4
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Calosi P, Melatunan S, Turner LM, Artioli Y, Davidson RL, Byrne JJ, Viant MR, Widdicombe S, Rundle SD. Regional adaptation defines sensitivity to future ocean acidification. Nat Commun 2017; 8:13994. [PMID: 28067268 PMCID: PMC5227702 DOI: 10.1038/ncomms13994] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 11/18/2016] [Indexed: 11/22/2022] Open
Abstract
Physiological responses to temperature are known to be a major determinant of species distributions and can dictate the sensitivity of populations to global warming. In contrast, little is known about how other major global change drivers, such as ocean acidification (OA), will shape species distributions in the future. Here, by integrating population genetics with experimental data for growth and mineralization, physiology and metabolomics, we demonstrate that the sensitivity of populations of the gastropod Littorina littorea to future OA is shaped by regional adaptation. Individuals from populations towards the edges of the natural latitudinal range in the Northeast Atlantic exhibit greater shell dissolution and the inability to upregulate their metabolism when exposed to low pH, thus appearing most sensitive to low seawater pH. Our results suggest that future levels of OA could mediate temperature-driven shifts in species distributions, thereby influencing future biogeography and the functioning of marine ecosystems. Global warming is expected to lead to shifts in species' geographic ranges to track preferred temperatures. Here, the authors show that populations of the common periwinkle vary in their sensitivity to ocean acidification, another major global change driver, which could further restrict range shifts caused by warming.
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Affiliation(s)
- Piero Calosi
- Département de Biologie Chimie et Géographie, Université du Québec à Rimouski, Rimouski, Quebec G5L 3A1, Canada.,Marine Biology &Ecology Research Centre, School of Marine Science and Engineering, Plymouth University, Drake Circus, Plymouth, Devon PL4 8AA, UK
| | - Sedercor Melatunan
- Marine Biology &Ecology Research Centre, School of Marine Science and Engineering, Plymouth University, Drake Circus, Plymouth, Devon PL4 8AA, UK.,Faculty of Fisheries and Marine Science, University of Pattimura, Kampus Poka, Ambon 97233, Indonesia
| | - Lucy M Turner
- Marine Biology &Ecology Research Centre, School of Marine Science and Engineering, Plymouth University, Drake Circus, Plymouth, Devon PL4 8AA, UK.,Department of Marine Sciences, University of Gothenburg, Box 460, Gothenburg 405 30, Sweden
| | - Yuri Artioli
- Plymouth Marine Laboratory, Prospect Place, West Hoe, Plymouth PL1 3DH, UK
| | - Robert L Davidson
- NERC Biomolecular Analysis Facility-Metabolomics Node (NBAF-B), University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Jonathan J Byrne
- NERC Biomolecular Analysis Facility-Metabolomics Node (NBAF-B), University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Mark R Viant
- NERC Biomolecular Analysis Facility-Metabolomics Node (NBAF-B), University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.,School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Stephen Widdicombe
- Plymouth Marine Laboratory, Prospect Place, West Hoe, Plymouth PL1 3DH, UK
| | - Simon D Rundle
- Marine Biology &Ecology Research Centre, School of Marine Science and Engineering, Plymouth University, Drake Circus, Plymouth, Devon PL4 8AA, UK
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Maasz G, Zrinyi Z, Reglodi D, Petrovics D, Rivnyak A, Kiss T, Jungling A, Tamas A, Pirger Z. Pituitary adenylate cyclase-activating polypeptide (PACAP) has a neuroprotective function in dopamine-based neurodegeneration in rat and snail parkinsonian models. Dis Model Mech 2016; 10:127-139. [PMID: 28067625 PMCID: PMC5312006 DOI: 10.1242/dmm.027185] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 12/06/2016] [Indexed: 01/12/2023] Open
Abstract
Pituitary adenylate cyclase-activating polypeptide (PACAP) rescues dopaminergic neurons from neurodegeneration and improves motor changes induced by 6-hydroxy-dopamine (6-OHDA) in rat parkinsonian models. Recently, we investigated the molecular background of the neuroprotective effect of PACAP in dopamine (DA)-based neurodegeneration using rotenone-induced snail and 6-OHDA-induced rat models of Parkinson's disease. Behavioural activity, monoamine (DA and serotonin), metabolic enzyme (S-COMT, MB-COMT and MAO-B) and PARK7 protein concentrations were measured before and after PACAP treatment in both models. Locomotion and feeding activity were decreased in rotenone-treated snails, which corresponded well to findings obtained in 6-OHDA-induced rat experiments. PACAP was able to prevent the behavioural malfunctions caused by the toxins. Monoamine levels decreased in both models and the decreased DA level induced by toxins was attenuated by ∼50% in the PACAP-treated animals. In contrast, PACAP had no effect on the decreased serotonin (5HT) levels. S-COMT metabolic enzyme was also reduced but a protective effect of PACAP was not observed in either of the models. Following toxin treatment, a significant increase in MB-COMT was observed in both models and was restored to normal levels by PACAP. A decrease in PARK7 was also observed in both toxin-induced models; however, PACAP had a beneficial effect only on 6-OHDA-treated animals. The neuroprotective effect of PACAP in different animal models of Parkinson's disease is thus well correlated with neurotransmitter, enzyme and protein levels. The models successfully mimic several, but not all etiological properties of the disease, allowing us to study the mechanisms of neurodegeneration as well as testing new drugs. The rotenone and 6-OHDA rat and snail in vivo parkinsonian models offer an alternative method for investigation of the molecular mechanisms of neuroprotective agents, including PACAP. Summary: PACAP has a neuroprotective effect in different toxin-induced rat and snail parkinsonian models, acting partially through the same mechanisms.
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Affiliation(s)
- Gabor Maasz
- MTA-ÖK BLI NAP_B Adaptive Neuroethology, Department of Experimental Zoology, Balaton Limnological Institute, MTA-CER, 8237 Tihany, Hungary.,Department of Analytical Biochemistry, Institute of Biochemistry and Medical Chemistry, University of Pecs, 7624 Pecs, Hungary
| | - Zita Zrinyi
- MTA-ÖK BLI NAP_B Adaptive Neuroethology, Department of Experimental Zoology, Balaton Limnological Institute, MTA-CER, 8237 Tihany, Hungary
| | - Dora Reglodi
- Department of Anatomy, University of Pecs, 7624 Pecs, Hungary
| | - Dora Petrovics
- Department of Analytical Biochemistry, Institute of Biochemistry and Medical Chemistry, University of Pecs, 7624 Pecs, Hungary
| | - Adam Rivnyak
- Department of Anatomy, University of Pecs, 7624 Pecs, Hungary
| | - Tibor Kiss
- Department of Experimental Zoology, Balaton Limnological Institute, MTA-CER, 8237 Tihany, Hungary
| | - Adel Jungling
- Department of Anatomy, University of Pecs, 7624 Pecs, Hungary
| | - Andrea Tamas
- Department of Anatomy, University of Pecs, 7624 Pecs, Hungary
| | - Zsolt Pirger
- MTA-ÖK BLI NAP_B Adaptive Neuroethology, Department of Experimental Zoology, Balaton Limnological Institute, MTA-CER, 8237 Tihany, Hungary
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Report on the 13th symposium on invertebrate neurobiology held 26-30 August 2015 at the Balaton Limnological Institute, MTA Centre for ecological research of the Hungarian Academy of Sciences, Tihany, Hungary. INVERTEBRATE NEUROSCIENCE 2016; 16:3. [PMID: 27149972 DOI: 10.1007/s10158-016-0186-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
This report summarizes the lectures and posters presented at the International Society for Invertebrate Neurobiology's 13th symposium held 26-30 August 2015, at the Balaton Limnological Institute, MTA Centre for Ecological Research, Tihany, Hungary. The symposium provided an opportunity for scientists working on a range of topics in invertebrate neurobiology to meet and present their research and discuss ways to advance the discipline.
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7
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Krajcs N, Hernádi L, Pirger Z, Reglődi D, Tóth G, Kiss T. PACAP Modulates Acetylcholine-Elicited Contractions at Nicotinic Neuromuscular Contacts of the Land Snail. J Mol Neurosci 2015; 57:492-500. [PMID: 26138333 DOI: 10.1007/s12031-015-0605-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 06/17/2015] [Indexed: 12/29/2022]
Abstract
In this study, we investigate the potentiating effect of PACAP27 on cholinergic neuromuscular transmission in the recently discovered flexor muscles of the land snail, Helix pomatia. Using immunohistochemistry, we show that PACAP and PAC1 receptors are present in nerve fibers innervating the flexor muscles but not in the muscle itself. We also observed that PACAP27 exerts both pre- and postsynaptic effects on the cholinergic synapse and performed tests using a broad spectrum of chemicals in order to explore the possible intracellular pathways through which PACAP mediates its stimulatory effect. Our pharmacological data demonstrate that PACAP27 presynaptically enhances the release of acetylcholine by activating the adenylate cyclase-cAMP-PKA pathway. Postsynaptically, PACAP27 was found to enhance muscle contractility by PKC-mediated signaling pathway resulting in an increased Ca(2+) release from intracellular stores. These findings suggest that regulation of Ca(2+) release may contribute to the stimulatory effect of PACAP. Our data are the first demonstration of the potentiating effect of PACAP27 at the molluscan excitatory neuromuscular contact.
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Affiliation(s)
- Nóra Krajcs
- Chemical Ecology and Neurobiology Research Group, Department of Experimental Zoology, Balaton Limnological Institute, Centre for Ecological Research, Hungarian Academy of Sciences, Klebelsberg Kuno u 3, H-8237, Tihany, Hungary
| | - László Hernádi
- Chemical Ecology and Neurobiology Research Group, Department of Experimental Zoology, Balaton Limnological Institute, Centre for Ecological Research, Hungarian Academy of Sciences, Klebelsberg Kuno u 3, H-8237, Tihany, Hungary
| | - Zsolt Pirger
- Chemical Ecology and Neurobiology Research Group, Department of Experimental Zoology, Balaton Limnological Institute, Centre for Ecological Research, Hungarian Academy of Sciences, Klebelsberg Kuno u 3, H-8237, Tihany, Hungary.,Adaptive Neuroethology Research Group, Department of Experimental Zoology, Balaton Limnological Institute, Centre for Ecological Research, Hungarian Academy of Sciences, Klebelsberg Kuno u 3, H-8237, Tihany, Hungary.,MTA-PTE "Momentum" PACAP Research Team, University of Pecs, Pecs, Hungary
| | - Dóra Reglődi
- MTA-PTE "Momentum" PACAP Research Team, University of Pecs, Pecs, Hungary
| | - Gábor Tóth
- Department of Medical Chemistry, University of Szeged, Szeged, Hungary
| | - Tibor Kiss
- Chemical Ecology and Neurobiology Research Group, Department of Experimental Zoology, Balaton Limnological Institute, Centre for Ecological Research, Hungarian Academy of Sciences, Klebelsberg Kuno u 3, H-8237, Tihany, Hungary.
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Kiss T, Krajcs N, Pirger Z, Hernádi L. Nicotinic acetylcholine receptors containing the α7-like subunit mediate contractions of muscles responsible for space positioning of the snail, Helix pomatia L. tentacle. PLoS One 2014; 9:e109538. [PMID: 25303328 PMCID: PMC4193815 DOI: 10.1371/journal.pone.0109538] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 09/05/2014] [Indexed: 11/19/2022] Open
Abstract
Three recently discovered tentacle muscles are crucial to perform patterned movements of upper tentacles of the terrestrial snail, Helix pomatia. The muscles receive central and peripheral excitatory cholinergic innervation lacking inhibitory innervation. Here, we investigate the pharmacology of acetylcholine (ACh) responses in muscles to determine the properties of the ACh receptor (AChR), the functional availability of which was assessed using isotonic contraction measurement. Using broad spectrum of nicotinic and muscarinic ligands, we provide the evidence that contractions in the muscles are attributable to the activation of nAChRs that contain the α7-like subunit. Contractions could be evoked by nicotine, carbachol, succinylchloride, TMA, the selective α7-nAChR agonist choline chloride, 3-Bromocytisine and PNU-282987, and blocked by nAChR selective antagonists such as mytolon, hexamethonium, succinylchloride, d-tubocurarine, hemicholinium, DMDA (decamethonium), methyllycaconitine, α-Bungarotoxin (αBgTx) and α-Conotoxin IMI. The specific muscarinic agonist oxotremorine and arecoline failed to elicit contractions. Based on these pharmacological properties we conclude that the Na+ and Ca2+ permeable AChRs of the flexor muscle are nicotinic receptors that contain the α7-like subunit. Immunodetection experiments confirmed the presence of α7- or α7-like AChRs in muscle cells, and α4-AChRs in nerves innervating the muscle. These results support the conclusion that the slowly desensitizing αBgTx-sensitive responses obtained from flexor muscles are produced by activation of α7- like AChRs. This is the first demonstration of postsynaptic expression and an obligatory role for a functional α7-like nAChR in the molluscan periphery.
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Affiliation(s)
- Tibor Kiss
- Chemical Ecology and Neurobiology Group, Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Tihany, Hungary
- * E-mail:
| | - Nóra Krajcs
- Chemical Ecology and Neurobiology Group, Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Tihany, Hungary
| | - Zsolt Pirger
- Adaptive Neuroetology MTA-CER, National Brain Project Team, Tihany, Hungary
| | - László Hernádi
- Chemical Ecology and Neurobiology Group, Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Tihany, Hungary
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