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SHORT-TERM EFFECTS OF ACETATE AND MICROAEROBIC CONDITIONS ON PHOTOSYNTHESIS AND RESPIRATION IN CHLORELLA SOROKINIANA GXNN 01 (CHLOROPHYTA) | |
Qiao, Hongjin1,3; Wang, Guangce1,2; Liu, Kai2; Gu, Wenhui1; Wang, GC (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China. | |
2012-08-01 | |
发表期刊 | JOURNAL OF PHYCOLOGY |
ISSN | 0022-3646 |
卷号 | 48期号:4页码:992-1001 |
文章类型 | Article |
摘要 | The culture of microalgae using organic carbon sources decreases the cost of operation in closed systems. The effect of carbon sources on microalgae is thus an interesting problem in not only theoretical research but also practical production. The short-term effects of acetate and microaerobic conditions on the growth, photosynthesis, and respiration of the green microalga Chlorella sorokiniana I. Shihira & R.W. Krauss GXNN 01 were described after acetate addition to autotrophic cultures. As the acetate concentration increased, cells needed a longer lag phase to grow, and 243.8 mM acetate completely inhibited growth. Acetate addition induced an immediate response in photosynthesis and respiration. The activity of PS II and PS I were impaired and declined with different rates, and then recovered compared with autotrophic cells. Carbonic anhydrase and Rubisco activities were also inhibited at the beginning, and respiration was increased. We propose that ATP consumption for acetate assimilation results in surplus NADPH, and then accumulated reducing power over-reduces inter-photosystem components and raises the transthylakoid proton gradient, which redistributes energy between PS I and PS II, and leads to a decrease in the PS II/PS I ratio and O2 evolution. An apparent cyclic electron flow was also observed, which may be mainly mediated by NAD(P)H dehydrogenase-dependent pathway since NADPH was in excess. These observations pointed to an acclimation process after acetate addition, and suggested the interaction between photosynthesis and respiration involving ATP and reducing power. |
关键词 | Acetate Chlorella Microaerobic Photosynthesis Respiration |
学科领域 | Plant Sciences ; Marine & Freshwater Biology |
DOI | 10.1111/j.1529-8817.2012.01189.x |
URL | 查看原文 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000307016700016 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/12382 |
专题 | 实验海洋生物学重点实验室 |
通讯作者 | Wang, GC (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China. |
作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 2.Tianjin Univ Sci Technol, Coll Marine Sci & Engn, Tianjin 300222, Peoples R China 3.Shandong Marine Fisheries Res Inst, Shandong Prov Key Lab Restorat Marine Ecol, Yantai 264006, Peoples R China |
第一作者单位 | 实验海洋生物学重点实验室 |
推荐引用方式 GB/T 7714 | Qiao, Hongjin,Wang, Guangce,Liu, Kai,et al. SHORT-TERM EFFECTS OF ACETATE AND MICROAEROBIC CONDITIONS ON PHOTOSYNTHESIS AND RESPIRATION IN CHLORELLA SOROKINIANA GXNN 01 (CHLOROPHYTA)[J]. JOURNAL OF PHYCOLOGY,2012,48(4):992-1001. |
APA | Qiao, Hongjin,Wang, Guangce,Liu, Kai,Gu, Wenhui,&Wang, GC .(2012).SHORT-TERM EFFECTS OF ACETATE AND MICROAEROBIC CONDITIONS ON PHOTOSYNTHESIS AND RESPIRATION IN CHLORELLA SOROKINIANA GXNN 01 (CHLOROPHYTA).JOURNAL OF PHYCOLOGY,48(4),992-1001. |
MLA | Qiao, Hongjin,et al."SHORT-TERM EFFECTS OF ACETATE AND MICROAEROBIC CONDITIONS ON PHOTOSYNTHESIS AND RESPIRATION IN CHLORELLA SOROKINIANA GXNN 01 (CHLOROPHYTA)".JOURNAL OF PHYCOLOGY 48.4(2012):992-1001. |
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