LUMINESCENCE 



561 



luciferin can be obtained by heating a luminous extract so as to destroy 

 the luciferase; and a preparation containing luciferase alone results from 

 allowing the luminescent reaction in an extract to proceed to completion, 

 thus exhausting the luciferin initially present. On subsequently mixing these 

 two preparations luminescence results. 



Luciferin and luciferase have also been identified in the polychaete 

 worm Odontosyllis, in ostracods, in the shrimp Systellaspis, and in the 

 teleost Malacocephalus laevis (in which symbiotic bacteria are implicated). 

 Careful examination has failed to reveal the luciferin-luciferase reaction 



TABLE 13.2 



Survey of the Occurrence of the Luciferin-luciferase 

 Reaction among Marine Animals 



Group 

 Flagellates 

 Radiolaria 



Porifera 

 Coelenterates 



Ctenophores 



Polychaetes 



Euphausiids 

 Ostracods 



Decapod Crustacea 

 Molluscs 



Echinoderms 

 Protochordates 



Teleosts 



Genus 

 Noctiluca 

 Collozoum 

 Thalassicolla 

 Grantia 

 Aequorea 

 Pelagia 

 Mitrocoma 

 Pennatula 

 Cavernularia 

 Beroe 

 Bolina 

 Eucharis 

 Mnemiopsis 

 Tomopteris 

 Polycirrus 

 Chaetopterus 

 Polynoe 

 Harmothoe 

 Acholoe 

 Odontosyllis 

 Meganyctiphanes 

 Cypridina 

 Pyrocypris 

 Systellaspis 

 Pholas 



Heteroteuthis 

 Amphiura 

 Ptychodera 

 BcdanogJossus 

 Pyrosoma 

 Photoblepharon a) 

 Anomalops (V) 

 Monocentris (1) 

 Malacocephalus^' 2) 



Occurrence 



+ 



+ 

 + 

 + 

 + 



These forms are believed to contain symbiotic bacteria. 



+ 

 2 The reaction is in doubt. 



