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Changes of Photosynthetic Behaviors and Photoprotection during Cell Transformation and Astaxanthin Accumulation in Haematococcus pluvialis Grown Outdoors in Tubular Photobioreactors
Zhang, Litao1,2,3; Su, Fang1,4; Zhang, Chunhui1,4; Gong, Fengying1,4; Liu, Jianguo1,2,3
2017
发表期刊INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷号18期号:1
文章类型Article
摘要The cell transformation from green motile cells to non-motile cells and astaxanthin accumulation can be induced in the green alga Haematococcus pluvialis cultured outdoors. In the initial 3 d of incubation (cell transformation phase), light absorption and photosynthetic electron transport became more efficient. After five days of incubation (astaxanthin accumulation phase), the light absorption per active reaction center (ABS/RC) increased, but the efficiency of electron transport (psi(o)) and the quantum yield of electron transport (phi(Eo)) decreased with increased time, indicating that the capacity of photosynthetic energy utilization decreased significantly during astaxanthin accumulation, leading to an imbalance between photosynthetic light absorption and energy utilization. It would inevitably aggravate photoinhibition under high light, e.g., at midday. However, the level of photoinhibition in H. pluvialis decreased as the incubation time increased, which is reflected by the fact that Fv/Fm determined at midday decreased significantly in the initial 3 d of incubation, but was affected very little after seven days of incubation, compared with that determined at predawn. This might be because the non-photochemical quenching, plastid terminal oxidase, photosystem I cyclic electron transport, defensive enzymes and the accumulated astaxanthin can protect cells against photoinhibition.
关键词Astaxanthin Chlorophyll a Fluorescence Transient Haematococcus Pluvialis Photoinhibtion Photosynthetic Behavior
DOI10.3390/ijms18010033
收录类别SCI
语种英语
WOS记录号WOS:000393030600033
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/136758
专题海洋生物技术研发中心
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
2.Yunnan Alphy Biotech Co Ltd, Natl Local Joint Engn Res Ctr Haematococcus Pluvi, Chuxiong 675012, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266071, Peoples R China
4.Univ Chinese Acad Sci, Inst Oceanol, Beijing 100049, Peoples R China
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Zhang, Litao,Su, Fang,Zhang, Chunhui,et al. Changes of Photosynthetic Behaviors and Photoprotection during Cell Transformation and Astaxanthin Accumulation in Haematococcus pluvialis Grown Outdoors in Tubular Photobioreactors[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2017,18(1).
APA Zhang, Litao,Su, Fang,Zhang, Chunhui,Gong, Fengying,&Liu, Jianguo.(2017).Changes of Photosynthetic Behaviors and Photoprotection during Cell Transformation and Astaxanthin Accumulation in Haematococcus pluvialis Grown Outdoors in Tubular Photobioreactors.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,18(1).
MLA Zhang, Litao,et al."Changes of Photosynthetic Behaviors and Photoprotection during Cell Transformation and Astaxanthin Accumulation in Haematococcus pluvialis Grown Outdoors in Tubular Photobioreactors".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 18.1(2017).
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