Fig. 1. Energy flow process of photosynthesis of phytoplankton

Fig. 2. Fluorescence kinetic curve inversion of fluorescence parameters

Fig. 3. (a) Photosynthetic oxygen release amount and (b) photosynthetic oxygen release rate of phytoplankton measured by oxygen electrode method

Fig. 4. Measurement results of photosynthetic electron transport rate Pe and photosynthetic oxygen release rate PO2 of chlorella pyrenoidosa at stress of DCMU. (a) Variation of PO2 with ambient light intensity; (b) variation of Pe with ambient light intensity; (c) variations of PO2 and Pe with DCMU stress concentration; (d) linear relationship between PO2 and Pe

Fig. 5. Measurement results of photosynthetic electron transport rate Pe and photosynthetic oxygen release rate PO2 of chlorella pyrenoidosa at stress of nitrogen. (a) Variation of PO2 with ambient light intensity; (b) variation of Pe with ambient light intensity; (c) variations of PO2 and Pe with nitrogen stress concentration; (d) linear relationship between PO2 and Pe

Fig. 6. Measurement results of photosynthetic electron transport rate Pe and photosynthetic oxygen release rate PO2 of chlorella pyrenoidosa at stress of cultivation light intensity. (a) Variation of PO2 with ambient light intensity; (b) variation of Pe with ambient light intensity; (c) variation of PO2 and Pe with cultivation light intensity; (d) linear relationship between PO2 and Pe

Table 1. Stress experimental condition setting