"線的増殖期" におけるクロレラの増殖速度と温度及び光の強さとの関係

概要

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Effects of light intensity and temperature upon the growth rate of Chlorella in cultures of high population density was investigated. It was shown that, by and large, the following equation fits in with the experimental data obtained in the temperature between 7°and 25°C and the range of light intensity between 0.80 and 50.0kilolux. ΔV/Δt=5.3×k/εD log(1+αI/k) where V is the packed cell volume (in ml) per liter of culture, t time of culture (in days), k the maximum growth rate (ΔlogV/Δt in 1/day) at each temperature, α a temperature-independent constant (in terms of 1/day-kilolux), εthe extinction coefficient of the algal suspension (in terms of 1/cm-ml), and I the light intensity (in kilolux). The only disagreement between calculated and observed values was found in the cultures of low temperature (7°C) kept under strong illumination (25-50 kilolux), in which case the cells gradually bleached and eventually ceased to grow for some unknown physiological reasons.
公益社団法人日本植物学会の論文