{"refrec":{"BRefID":280835,"RR":"<b>Krönström, J.; Dupont, S.; Mallefet, J.; Thorndyke, M.; Holmgren, S.</b> (2007). Serotonin and nitric oxide interaction in the control of bioluminescence in northern krill, <i>Meganyctiphanes norvegica</i> (M. Sars). <i>J. Exp. Biol. 210(18)</i>: 3179-3187. <a href=\"http://dx.doi.org/10.1242/jeb.002394\" target=\"_blank\">dx.doi.org/10.1242/jeb.002394</a>","BEntID":272854,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Exp. Biol. 210(18)</i>: 3179-3187. <a href=\"https://dx.doi.org/10.1242/jeb.002394\" target=\"_blank\">https://dx.doi.org/10.1242/jeb.002394</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Krönström, J.; Dupont, S.; Mallefet, J.; Thorndyke, M.; Holmgren, S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Krönström, J. <i>et al.</i>","Englishabstract":"The role of nitric oxide (NO) in the control of bioluminescence (light production) in the crustacean <i>Meganyctiphanes norvegica</i> (krill) was investigated using pharmacological and immunohistochemical methods. Allnitrergic drugs tested failed to induce bioluminescence <i>per se</i> but modulated light production stimulated by 5-hydroxytryptamine (5-HT). NO donors [sodium nitroprusside (SNP) and S-nitroso-N-acetylpenicillamine (SNAP)] injected in live specimens significantly reduced light production stimulated by 5-HT, whereas inhibition of the enzyme NO synthase (NOS) withl-NAME (N<sup>G</sup>-nitro-l-arginine methyl ester) resulted in an enhancement of the 5-HT response. The effects of NO do not seem to be mediated <i>via</i> production of cGMP as injections of a cGMP analogue (8-Bromoguanosine 3′,5′-cyclic monophosphate) gave inconclusive effects on the 5-HT-stimulated light response. Inhibition of cGMP production with ODQ (1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one) did not affect the light response. Moreover, a few individuals showed a considerably higher response to 5-HT in April and June compared with specimens collected in the autumn and winter. Furthermore, both NOS-like and 5-HT-like materials were detected by immunohistochemistry inside the light organs. NOS-like immunoreactivity was primarily observed in structures associated with vessels inside the light organs, whereas 5-HT-like material was abundant in nerve fibres throughout the whole light organ. The results suggest that NO has a modulatory role at several levels in the control of light production in <i>M. norvegica</i> and that NO and 5-HT interact in this regulation.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Serotonin and nitric oxide interaction in the control of bioluminescence in northern krill, <i>Meganyctiphanes norvegica</i> (M. Sars)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-18 01:31:56.410002","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"bioluminescence; 5-HT; Meganyctiphanes norvegica; nitric oxide; nitricoxide synthase; krill","OtherDescriptors":null,"Notes":null,"AnaPub":2007,"MonPub":null,"DateUpdate":"2016-11-10","DateCreate":"2016-10-09","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000249517400011","VABBcode":null,"OpenAcc":0,"DOI":"10.1242/jeb.002394"},"refs":null,"anarec":{"AnaID":280835,"PubliDate":2007,"Pagination":"3179-3187","XtraPublOfAnaID":null,"ISBN":null,"Volume":"210","Issue":"18","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43227,"SerRR":"The Journal of Experimental Biology. Cambridge University Press: London.  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