INFLUENCE OF CLINOROTATION ON CELLULAR STRUCTURE, PHOTOSYNTHETIC ACTIVITY, CARBOHYDRATE AND ASTAXANTHIN METABOLISM OF HAEMATOCOCCUS PLUVIALIS
文献类型：期刊论文
| 作者 | Zhang, Yu1,2; Li, Xiao-yan1; Ge, Hong-Mei1; Wu, Li1; Xia, Ling1; Wang, Gao-hong1; Hu, Chun-xiang1; Liu, Yong-ding1 |
| 刊名 | FRESENIUS ENVIRONMENTAL BULLETIN
 |
| 出版日期 | 2012 |
| 卷号 | 21期号:8页码:2017-2026 |
| 关键词 | clinorotation Haematococcus pluvialis sucrose trehalose astaxanthin carbohydrate metabolism |
| ISSN号 | 1018-4619 |
| 通讯作者 | Hu, CX (reprint author), Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China. |
| 中文摘要 | The effects of 20 days clinorotation on cellular structure, photosynthetic activity, and the carbohydrate and astaxanthin metabolism of Haematococcus pluvialis provide insights in algal cell adaption. Light micrographs showed the cell shape appeared abnormal and the volume became smaller than the ground control. Ultrastructure analysis revealed that the starch grains seemed smaller and the thylakoid membranes were more randomly distributed and loosened after 20 days of clinorotation. The decreased photosystem II (PSII) photochemical fluorescence efficiency (Fv/Fm) indicated a slow-down of photosynthetic capacity under clinorotation, most likely related to the chloroplast structure changes. The smaller starch grains, together with the decreased starch content were probably either due to an increased hydrolysis of amylase, or a decreased starch synthesis by ADP-glucose pyrophosphorylase during clinorotation. The increased sucrose and trehalose played a protective role in algal cell's accommodation to early clinorotation. However this led to a decrease of glucose and fructose utilized for the synthesis of protective disaccharides. In the middle phase of clinorotation (i.e. the acclimation period), a compensatory synthesis of chlorophyll, glucose and fructose and a reduction of sucrose and trehalose were observed. From the decreased anabolism of astaxanthin, it could be deduced that the clinorotation environment caused a decreased astaxanthin metabolism in Haematococcus pluvialis. |
| 英文摘要 | The effects of 20 days clinorotation on cellular structure, photosynthetic activity, and the carbohydrate and astaxanthin metabolism of Haematococcus pluvialis provide insights in algal cell adaption. Light micrographs showed the cell shape appeared abnormal and the volume became smaller than the ground control. Ultrastructure analysis revealed that the starch grains seemed smaller and the thylakoid membranes were more randomly distributed and loosened after 20 days of clinorotation. The decreased photosystem II (PSII) photochemical fluorescence efficiency (Fv/Fm) indicated a slow-down of photosynthetic capacity under clinorotation, most likely related to the chloroplast structure changes. The smaller starch grains, together with the decreased starch content were probably either due to an increased hydrolysis of amylase, or a decreased starch synthesis by ADP-glucose pyrophosphorylase during clinorotation. The increased sucrose and trehalose played a protective role in algal cell's accommodation to early clinorotation. However this led to a decrease of glucose and fructose utilized for the synthesis of protective disaccharides. In the middle phase of clinorotation (i.e. the acclimation period), a compensatory synthesis of chlorophyll, glucose and fructose and a reduction of sucrose and trehalose were observed. From the decreased anabolism of astaxanthin, it could be deduced that the clinorotation environment caused a decreased astaxanthin metabolism in Haematococcus pluvialis. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | ELECTRON MICROSCOPY ; GENE-EXPRESSION ; TREHALOSE ; MICROGRAVITY ; GROWTH ; RESPONSES ; ACCUMULATION ; DESICCATION ; PROKARYOTES ; APPARATUS |
| 收录类别 | SCI |
| 资助信息 | Strategic Pilot Project of Chinese Academy of Sciences [XDA04074002] |
| 语种 | 英语 |
| WOS记录号 | WOS:000309326000003 |
| 公开日期 | 2013-01-09 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/17286]  |
| 专题 | 水生生物研究所_藻类生物学及应用研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yu,Li, Xiao-yan,Ge, Hong-Mei,et al. INFLUENCE OF CLINOROTATION ON CELLULAR STRUCTURE, PHOTOSYNTHETIC ACTIVITY, CARBOHYDRATE AND ASTAXANTHIN METABOLISM OF HAEMATOCOCCUS PLUVIALIS[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2012,21(8):2017-2026. |
| APA | Zhang, Yu.,Li, Xiao-yan.,Ge, Hong-Mei.,Wu, Li.,Xia, Ling.,...&Liu, Yong-ding.(2012).INFLUENCE OF CLINOROTATION ON CELLULAR STRUCTURE, PHOTOSYNTHETIC ACTIVITY, CARBOHYDRATE AND ASTAXANTHIN METABOLISM OF HAEMATOCOCCUS PLUVIALIS.FRESENIUS ENVIRONMENTAL BULLETIN,21(8),2017-2026. |
| MLA | Zhang, Yu,et al."INFLUENCE OF CLINOROTATION ON CELLULAR STRUCTURE, PHOTOSYNTHETIC ACTIVITY, CARBOHYDRATE AND ASTAXANTHIN METABOLISM OF HAEMATOCOCCUS PLUVIALIS".FRESENIUS ENVIRONMENTAL BULLETIN 21.8(2012):2017-2026. |
入库方式： OAI收割
来源：水生生物研究所
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