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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
Source PublicationINTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume18Issue:1
SubtypeArticle
AbstractThe 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.
KeywordAstaxanthin Chlorophyll a Fluorescence Transient Haematococcus Pluvialis Photoinhibtion Photosynthetic Behavior
DOI10.3390/ijms18010033
Indexed BySCI
Language英语
WOS IDWOS:000393030600033
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/136758
Collection海洋生物技术研发中心
Affiliation1.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
First Author AffilicationKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
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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