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Kautsky effect (also named, ''fluorescence transient'', ''fluorescence induction'' or ''fluorescence decay'') is a phenomenon consisting on a typical variation on the behavior of a plant fluorescence when is exposed to light. It was discovered in 1931 by H. Kautsky and A. Hirsch. When dark-adapted photosynthesising cells are illuminated with continuous light, chlorophyll fluorescence displays characteristic changes in intensity accompanying the induction of photosynthetic activity. ==Measurement of Fluorescence Quantum Yield== The quantum yield of fluoresence is calculated through the following equation: ΦP = (Fm-F0)/Fm = Fv/Fm = kp/(kp+kf+kO) F0 is the low fluorescence intensity, which is measured by a short light flash that is not strong enough to cause photochemistry, and thus induces fluorescence. Fm is the maximum fluorescence that can be obtained from a sample by measuring the highest intensity of fluorescence after a saturating flash. The difference between the measured values is the variable fluorescence (Fv=Fm-F0). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Kautsky effect」の詳細全文を読む スポンサード リンク
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