Chlorella pyrenoidosaの増殖と各態窒素, リンの利用に及ぼす窒素, リンの濃度と組成比の影響

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Batch cultures of Chlorella pyrenoidosa were grown for various concentrations and ratios of nitrogen (N) and phosphorus (P). At the same nitrogen concentration, the growth increased as the phosphorus concentration was higher and the N/P ratio was lower. The cellular N/P ratio varied widely by the algal luxurious uptake of phosphorus. The algae could use various compounds of nitrogen, but its preference for nitrogenous compounds varied on the experimental conditions. Phosphate-phosphorus was used preferentially to dissolved organic phosphorus, when the concentration of phosphorus was less than 1 mg/l. However, when the concentration was more than 10 mg/l, the preference was reversed. Nitrogen and phosphorus were removed most efficiently (over 95%) at concentrations of 1 mg/l for nitrogen and 0.1 mg/l for phosphorus.
社団法人日本生物工学会の論文
1986-09-25