{"refrec":{"BRefID":30177,"RR":"<b>Mallefet, J.; Baguet, F.</b> (1993). Metabolic control of luminescence in isolated photophores of <i>Porichthys</i>: effects of glucose on oxygen consumption and luminescence. <i>J. Exp. Biol. 181</i>: 279-293","BEntID":30177,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Exp. Biol. 181</i>: 279-293","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Mallefet, J.; Baguet, F.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Mallefet, J.; Baguet, F.","Englishabstract":"1. Basal oxygen consumption of isolated photophores from <i>Porichthys</i> sp. at rest, i.e. without light emission, increased significantly from 0.101 +/- 0.021 nmol min<sup>-1</sup> to 0.173 +/- 0.016 nmol min<sup>-1</sup> in response to the addition of 5.5 mmol l<sup>-1</sup> glucose.2. 5.5 mmol l<sup>-1</sup> glucose pretreatment modified the time course of the two phases of adrenaline-induced luminescence; an increase in oxygen consumption was observed during the fast phase of light production but a decrease occurred during the slow phase of luminescence.3. Pretreatment of isolated photophores with 5.5 mmol l<sup>-1</sup> glucose totally inhibited the light emission induced by 1 mmol l<sup>-1</sup> potassium cyanide. With this treatment, the respiration rate decreased progressively and after 40 min reached a value not significantly different from zero.4. Even after blockage of cellular respiration by cyanide, an increase in the rate of oxygen consumption was observed during the fast adrenaline-induced luminescence.5. Glucose utilisation by glycolysis or by oxidative metabolism may provide energy to an inhibitory mechanism that maintains the photophores in a non-luminescent state.6. We suggest that the oxygen consumed during the fast phase of adrenaline luminescence could represent the activity of an extramitochondrial oxidative pathway involved in the light reaction.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Metabolic control of luminescence in isolated photophores of <i>Porichthys</i>: effects of glucose on oxygen consumption and luminescence","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-19 01:31:13.309046","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1993,"MonPub":null,"DateUpdate":"2019-08-05","DateCreate":"2002-12-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:A1993LU60100017","VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":30177,"PubliDate":1993,"Pagination":"279-293","XtraPublOfAnaID":null,"ISBN":null,"Volume":"181","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43227,"SerRR":"The Journal of Experimental Biology. 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