| The effects of immobilization on physiology and ultrastructure of unicellular alga Platymonas subcordiformis |
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| 作者姓名： | Zhang Xuecheng Wu Xiaonan Li Yonghong |
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| 作者单位： | College of Marine Life Sciences，Ocean University of Qingdao，Qingdao 266003，China Institute of Oceanology，Academia Sinica，Qingdao 266071，China |
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| 摘 要： | ＴｈｅｅｆｆｅｃｔｓｏｆｉｍｍｏｂｉｌｉｚａｔｉｏｎｏｎｐｈｙｓｉｏｌｏｇｙａｎｄｕｌｔｒａｓｔｒｕｃｔｕｒｅｏｆｕｎｉｃｅｌｌｕｌａｒａｌｇａＰｌａｔｙｍｏｎａｓｓｕｂｃｏｒｄｉｆｏｒｍｉｓ￥ＺｈａｎｇＸｕｅｃｈｅｎｇ；ＷｕＸｉａｏｎａｎａｎｄＬｉ...
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| 关 键 词： | Platymonas subcordiformis immobilization photosynthesis respiration ultrastructure |
| 收稿时间： | 1995/1/20 0:00:00 |
| 修稿时间： | 1995/4/20 0:00:00 |
The effects of immobilization on physiology and ultrastructure of unicellular alga Platymonas subcordiformis |
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| Zhang Xuecheng,Wu Xiaonan,Li Yonghong.The effects of immobilization on physiology and ultrastructure of unicellular alga Platymonas subcordiformis[J].Acta Oceanologica Sinica,1995,14(2):269-275. |
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| Authors: | Zhang Xuecheng Wu Xiaonan and Li Yonghong |
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| Institution: | 1.College of Marine Life Sciences, Ocean University of Qingdao, Qingdao 266003, China2.Institute of Oceanology, Academia Sinica, Qingdao 266071, China |
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| Abstract: | In the present paper, the unicellular green alga Platymonas subcordiformis was entrapped in 2% (W/V) alginate, treated with CaCl2 at different concentrations (0.5, 0.75, 1.0, 1.5 and 2.0 mol/dm3), cultured at 15℃ and 25℃.The growth rate and morphology were studied and photosynthesis and respiration rates were measured.The optimum conditions of immobilized culture is in 0.5 mol/dm3 of CaCl2, at 25℃.Photosynthesis rate of immobilized cells is higher than free cultivated cells, and that at 15℃ than at 25℃.Under scanning electropic microscope, it was shown that the immobilized cells had larger size and rougher surface.The relationship between growth of immobilized cells and abiotic factors and the prospects of applying immobilized cultivation are also discussed. |
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| Keywords: | Platymonas subcordiformis immobilization photosynthesis respiration ultrastructure |
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