{"refrec":{"BRefID":238151,"RR":"<b>Gouveneaux, A.; Mallefet, J.</b> (2013). Physiological control of bioluminescence in a deep-sea planktonic worm, <i>Tomopteris helgolandica</i>. <i>J. Exp. Biol. 216(22)</i>: 4285-4289. <a href=\"http://dx.doi.org/10.1242/jeb.090852\" target=\"_blank\">dx.doi.org/10.1242/jeb.090852</a>","BEntID":229838,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Exp. Biol. 216(22)</i>: 4285-4289. <a href=\"https://dx.doi.org/10.1242/jeb.090852\" target=\"_blank\">https://dx.doi.org/10.1242/jeb.090852</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Gouveneaux, A.; Mallefet, J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Gouveneaux, A.; Mallefet, J.","Englishabstract":"<em>Tomopteris helgolandica</em> Greeff 1879 (Tomopteridae) is a transparent holoplanktonic polychaete that can emit a bright light. In this study, we investigated the emission pattern and control of this deep-sea worm's luminescence. Potassium chloride depolarisation applied on anaesthetized specimens triggered a maximal yellow light emission from specific parapodial sites, suggesting that a nervous control pathway was involved. Pharmacological screening revealed a sensitivity to carbachol, which was confirmed by a dose–light response associated with a change in the light emission pattern, where physiological carbachol concentrations induced flashes and higher concentrations induced glows. The light response induced by its hydrolysable agonist, acetylcholine, was significantly weaker but was facilitated by eserine pretreatment. In addition, a specific inhibitory effect of tubocurarine was observed on carbachol-induced emission. Lastly, KCl- and carbachol-induced light responses were significantly reduced when preparations were pre-incubated in Ca<sup>2+</sup>-free artificial seawater or in different calcium channel blockers (verapamil, diltiazem) and calmodulin inhibitor (trifluoperazine) solutions. All of these results strongly suggest that <em>T. helgolandica</em> produces its light flashes <em>via</em> activation of nicotinic cholinergic receptors and a calcium-dependent intracellular mechanism involving L-type calcium channels.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Physiological control of bioluminescence in a deep-sea planktonic worm, <i>Tomopteris helgolandica</i>","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-19 01:31:36.686127","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Tomopteridae; yellow light; annelid; cholinergic control; nervouscontrol; plankton","OtherDescriptors":null,"Notes":null,"AnaPub":2013,"MonPub":null,"DateUpdate":"2015-10-29","DateCreate":"2014-05-18","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000326499900023","VABBcode":null,"OpenAcc":0,"DOI":"10.1242/jeb.090852"},"refs":null,"anarec":{"AnaID":238151,"PubliDate":2013,"Pagination":"4285-4289","XtraPublOfAnaID":null,"ISBN":null,"Volume":"216","Issue":"22","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43227,"SerRR":"The Journal of Experimental Biology. 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