{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T13:55:14Z","timestamp":1793109314273,"version":"4.5.0"},"reference-count":64,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2023,5,24]],"date-time":"2023-05-24T00:00:00Z","timestamp":1684886400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006769","name":"RSF","doi-asserted-by":"publisher","award":["22-24-00318"],"award-info":[{"award-number":["22-24-00318"]}],"id":[{"id":"10.13039\/501100006769","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biology"],"abstract":"<jats:p>Intense species-specific locomotion changes the behavioural and cognitive states of various vertebrates and invertebrates. However, whether and how reproductive behaviour is affected by previous increased motor activity remains largely unknown. We addressed this question using a model organism, the pond snail Lymnaea stagnalis. Intense crawling in shallow water for two hours had previously been shown to affect orienting behaviour in a new environment as well as the state of the serotonergic system in L. stagnalis. We found that the same behaviour resulted in an increased number of egg clutches and the total number of eggs laid in the following 24 h. However, the number of eggs per clutch was not affected. This effect was significantly stronger from January to May, in contrast to the September\u2013December period. Transcripts of the egg-laying prohormone gene and the tryptophan hydroxylase gene, which codes for the rate-limiting enzyme in serotonin synthesis, were significantly higher in the central nervous system of snails that rested in clean water for two hours after intense crawling. Additionally, the neurons of the left (but not the right) caudo-dorsal cluster (CDC), which produce the ovulation hormone and play a key role in oviposition, responded to stimulation with a higher number of spikes, although there were no differences in their resting membrane potentials. We speculate that the left\u2013right asymmetry of the response was due to the asymmetric (right) location of the male reproductive neurons having an antagonistic influence on the female hormonal system in the hermaphrodite mollusc. Serotonin, which is known to enhance oviposition in L. stagnalis, had no direct effect on the membrane potential or electrical activity of CDC neurons. Our data suggest that (i) two-hour crawling in shallow water enhances oviposition in L. stagnalis, (ii) the effect depends on the season, and (iii) the underlying mechanisms may include increased excitability of the CDC neurons and increased expression of the egg-laying prohormone gene.<\/jats:p>","DOI":"10.3390\/biology12060764","type":"journal-article","created":{"date-parts":[[2023,5,24]],"date-time":"2023-05-24T01:59:13Z","timestamp":1684893553000},"page":"764","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Intense Locomotion Enhances Oviposition in the Freshwater Mollusc Lymnaea stagnalis: Cellular and Molecular Correlates"],"prefix":"10.3390","volume":"12","author":[{"given":"Ilya","family":"Chistopolsky","sequence":"first","affiliation":[{"name":"Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexandra","family":"Leonova","sequence":"additional","affiliation":[{"name":"Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maxim","family":"Mezheritskiy","sequence":"additional","affiliation":[{"name":"Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dmitri","family":"Boguslavsky","sequence":"additional","affiliation":[{"name":"Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Angelina","family":"Kristinina","sequence":"additional","affiliation":[{"name":"Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Igor","family":"Zakharov","sequence":"additional","affiliation":[{"name":"Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-1972-1054","authenticated-orcid":false,"given":"Andrey","family":"Sorminskiy","sequence":"additional","affiliation":[{"name":"Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1701-1748","authenticated-orcid":false,"given":"Dmitri","family":"Vorontsov","sequence":"additional","affiliation":[{"name":"Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1730-6578","authenticated-orcid":false,"given":"Varvara","family":"Dyakonova","sequence":"additional","affiliation":[{"name":"Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,5,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"e22","DOI":"10.5534\/wjmh.220199","article-title":"Male fertility and physical exercise","volume":"41","author":"Belladelli","year":"2023","journal-title":"World J. 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