| 盐藻生长过程中氮磷利用与色素积累 |
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| 引用本文： | 郝建欣,孙钰,丛威,蔡昭铃.盐藻生长过程中氮磷利用与色素积累[J].海洋科学,2003,27(2):41-44. |
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| 作者姓名： | 郝建欣 孙钰 丛威 蔡昭铃 |
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| 作者单位： | 中国科学院过程工程研究所生化工程国家重点实验室,北京,100080 |
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| 摘 要： | 考察了盐藻在氮浓度3mmol/L和0.59mmol/L两种条件下的生长、氮磷的利用以及色素积累的情况。结果表明氮浓度3mmol/L培养基有利于藻细胞的增值，最终藻体浓度大，稳定期可维持数日；0．59mmol/L培养基有利于细胞胡萝卜素积累，单位细胞胡萝卜素与叶绿素的比值达到12．3，是氮浓度3mmol/L培养基的两倍左右。盐藻细胞在生长初期快速利用氮源，之后即使培养基中仍有较高浓度的氮源，藻细胞也不再利用。两种条件下藻细胞对磷的利用情况相同。两种培养基中盐藻单位细胞叶绿素含量均先增加后减少，胡萝卜素含量均先降低后增加。
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| 关 键 词： | 盐藻 生长过程 氮磷利用 色素积累 |
| 文章编号： | 1000-3096(2003)02-0041-04 |
| 收稿时间： | 2001/10/29 0:00:00 |
| 修稿时间： | 2001年10月29 |
THE UTILIZATION OF NITRATE AND PHOSPHATE IN Dunaliella salina AND THE ACCUMULATIVE PROCESS OF CAROTENE |
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| HAO Jian-Xin,SUN Yu,CONG Wei,CAI Zhao-Ling.THE UTILIZATION OF NITRATE AND PHOSPHATE IN Dunaliella salina AND THE ACCUMULATIVE PROCESS OF CAROTENE[J].Marine Sciences,2003,27(2):41-44. |
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| Authors: | HAO Jian-Xin SUN Yu CONG Wei CAI Zhao-Ling |
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| Abstract: | The growth of Dunaliella salina and accumulation of pigments in two media of 3 mmol/L and 0.59 mmol/L nitrate concentration were examined. The utilizations of nitrate and phosphate were investigated with the growth of alga. It was shown that the higher nitrate concentration medium was favorable for the algal growth and the lower one was better for the accumulation of carotene. The utilization of nitrate lasted a longer period in 3mmol/L nitrate concentration medium than that in the 0.59 mmol/L one. Cell growth was in accordance with the utility of nitrate. In both media the utilities of phosphate were almost the same. The both accumulations of chlorophyll increased first, but decreased afterwards and the trends of carotene were opposite. The total carotene concentrations in both media were almost the same. |
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