Chemiluminescence from bamboo shoot cut.
Bamboo shoot cut emitted weak light, which could be visualized with a two dimensional imaging system. A water extract of bamboo shoot contained tyrosine (a major component of total amino acids), bityrosine and peroxidase. Bamboo shoot peroxidase-H2O2-tyrosine system also emitted weak light with maxima at 490nm, 530nm and longer wavelength, identical to that in horseradish peroxidase-H2O2 system. Judging from these results, chemiluminescence from bamboo shoot cut might be originated from excited species generated by enzymatic oxidation of tyrosine and bityrosine.
Bio-Photon Project, Research Development Corporation of Japan, Kojinnkai Central Hospital, Miyagi.
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Totsune
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Nakano
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Inaba
D007091:Image Processing, Computer-Assisted; D008163:Luminescent Measurements; D009195:Peroxidase / Q000378:metabolism; D006109:Poaceae / Q000737:chemistry / Q000378:metabolism*; D014443:Tyrosine / Q000031:analogs & derivatives / Q000032:analysis / Q000378:metabolism
D014443:Tyrosine; C007543:dityrosine; D009195:Peroxidase