| An inducible CO2 concentrating mechanism in cyanobacterium Anabaena sp strain PCC7120 | |
| WU Tianfu; SONG Lirong; LIU Yongding; Liu, YD, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China | |
| 1999 | |
| Source Publication | CHINESE SCIENCE BULLETIN
 |
| Volume | 44Issue:23Pages:2177-2181 |
| Abstract | In order to define its characteristics of the photosynthetic utilization of CO2 and HCO3- when the ambient inorganic carbon changed, HCG (High-CO2-Growing Cells) of cyanobacterium Anabaena sp. strain PCC7120 were prepared. The growth rate of HCG was higher than that of LCG (low-CO2-growing cells, i.e. air-growing cells). When the HCG cells were transferred from 5% CO2 to air levels of CO2 , a series of changes took place: its carbonic anhydrase activity as well as its photosynthetic affinity to the external inorganic carbon significantly increased; the number of the carboxysomes, which is one of the most important components of CCM in cyanobacteria also increased. These facts indicated that the CCM activity of Anabaena PCC 7120 was induced. When the pH in the medium increased from 6 to 9, the photosynthetic affinity to external inorganic carbon of both HCG and LCG declined, while the apparent photosynthetic affinity to external CO2 increased. In the light of these findings, this inducible CCM in cyanobacteria provided a good model for the study of the photosynthetic Ci utilization in the phototrophic microoganisms. |
| Keyword | Hcg Ccm Photosynthetic Affinity Carboxysome |
| Department | Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| Subject Area | Multidisciplinary Sciences |
| Indexed By | SCI |
| WOS ID | WOS:000085007300014 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/152342/10156 |
| Collection | 期刊论文 |
| Corresponding Author | Liu, YD, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| Recommended Citation GB/T 7714 | WU Tianfu,SONG Lirong,LIU Yongding,et al. An inducible CO2 concentrating mechanism in cyanobacterium Anabaena sp strain PCC7120[J]. CHINESE SCIENCE BULLETIN,1999,44(23):2177-2181. |
| APA | WU Tianfu,SONG Lirong,LIU Yongding,&Liu, YD, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(1999).An inducible CO2 concentrating mechanism in cyanobacterium Anabaena sp strain PCC7120.CHINESE SCIENCE BULLETIN,44(23),2177-2181. |
| MLA | WU Tianfu,et al."An inducible CO2 concentrating mechanism in cyanobacterium Anabaena sp strain PCC7120".CHINESE SCIENCE BULLETIN 44.23(1999):2177-2181. |
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