| 盐胁迫状态下莱茵衣藻849光合特性的初步研究 |
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| 引用本文： | 蒋雯婷,王全喜,吴双秀.盐胁迫状态下莱茵衣藻849光合特性的初步研究[J].植物研究,2007,27(3):284-288. |
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| 作者姓名： | 蒋雯婷 王全喜 吴双秀 |
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| 作者单位： | 上海师范大学生物系，上海师范大学生物系，上海师范大学生物系 上海200234，上海200234，上海200234，东北林业大学教育部森林植物生态学实验室，哈尔滨150040 |
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| 基金项目： | 上海市教委选拔培养优秀青年教师科研专项基金;上海市教委资助项目;上海师范大学博士启动经费资助项目;上海市浦江人才计划 |
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| 摘 要： | 以莱茵衣藻（Chlamydomonas reinhardtii）为研究对象，对其在不同NaCl浓度胁迫条件下的光合特性进行了初步研究。结果表明0.04 mol·L-1的NaCl对莱茵衣藻的生长无显著影响，而0.075 mol·L-1的NaCl使莱茵衣藻生长速率下降了50%。在低光照强度下，NaCl胁迫下的衣藻光合速率和呼吸速率在最初7 h内比对照组高；而在较高光照强度下，NaCl胁迫下的衣藻的光合速率和呼吸速率均比对照组低；而且光合速率和呼吸速率升高和下降的幅度与NaCl浓度成正比。
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| 关 键 词： | 莱茵衣藻 盐胁迫 光合特性 |
| 修稿时间： | 2006-10-11 |
Primary Study of the Photosynthetic Characteristics of Chlamydomonas reinhardtii Strain 849 under Salty Stress |
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| JIANG Wen-Ting,WANG Quan-Xi,WU Shuang-Xiu.Primary Study of the Photosynthetic Characteristics of Chlamydomonas reinhardtii Strain 849 under Salty Stress[J].Bulletin of Botanical Research,2007,27(3):284-288. |
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| Authors: | JIANG Wen-Ting WANG Quan-Xi WU Shuang-Xiu |
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| Institution: | 1. Department of biology, Shanghai Normal University, Shanghai 200234;2. Key Laboratory of Forest Plant Ecology of the Ministry of Education,Northeast Forestry University,Harbin 150040 |
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| Abstract: | We choose Chlamydomonas reinhardtii as our subject to focus on it’s photosynthesis characteristics under salty stress. The growth rate of C. reinhardtii under 0.04 mol·L-1 NaCl treatment showed no obvious inhibition but it decreased about 50% under 0.075 mol·L-1 NaCl treatment. In the low light density, the photosynthetic rate and respiration rate of C. reinhardtii were stimulated by the NaCl stress within 7 hours after the treatment. While in the high light density, the photosynthetic rate and respiration rate decreased under NaCl treatments. The increase degree and decrease degree of the photosynthetic and respiration rates were parallel with the concentration of NaCl. |
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| Keywords: | Chlamydomonas reinhardtii salt stress photosynthesis characteristics |
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