ホタルの発光における色調変調メカニズム─ ジオキセタン型化学発光の視点からの提言 ─
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概要
- 論文の詳細を見る
Color tuning observed in the bioluminescence (BL) of fireflies is a marvelous phenomenonin luminous organisms. Luciferase-catalyzed oxygenation of luciferin LH2 takes place in the firefly to give dioxetanone intermediate Dx, which decomposes immediately into excited oxyluciferin 1(OxyLH)* emitting light. Surprisingly, the same LH2 is used to display light ranging in color from green to red. Several influential mechanisms have been proposed to elucidate the phenomenon, based on the features of 1(OxyLH)*. These mechanistic aspects of color tuning in BL are discussed, comparing with color modulation in chemiluminescence (CL) from CTID (charge-transfer-induced decomposition)-active dioxetanes. The phenomenon in which CL spectra of biaryl-substituted dioxetanes do not coincide with fluorescence spectra oftheir authentic emitters in an anisotropic microenvironment suggests that color tuning in the BL may be affected also by stereochemistry of Dx in Lc.
- 2009-10-20
著者
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Watanabe Nobuko
Department Of Chemistry Faculty Of Science Kanagawa University
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松本 主勝
Department Of Chemistry Faculty Of Science Kanagawa University:to Whom Correspondence Should Be Addr
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松本 正勝
Department of Chemistry, Kanagawa University
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