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Exogenous sodium acetate enhances astaxanthin accumulation and photoprotection in Haematococcus pluvialis at the non-motile stage
Zhang, Chunhui1,2,3; Zhang, Litao1,2,4; Liu, Jianguo1,2,4
2019-04-01
Source PublicationJOURNAL OF APPLIED PHYCOLOGY
ISSN0921-8971
Volume31Issue:2Pages:1001-1008
Corresponding AuthorLiu, Jianguo(jgliu@qdio.ac.cn)
AbstractThe purpose of this study was to analyze the effects of exogenous sodium acetate on astaxanthin accumulation and photoprotection in Haematococcus pluvialis at the non-motile stage. Five or 10 mM sodium acetate increased astaxanthin contents more than two-fold as compared with that in cells without sodium acetate after 6 days of incubation, indicating that exogenous sodium acetate accelerated astaxanthin accumulation at the non-motile stage significantly. Addition of sodium acetate inhibited the chlorophyll fluorescence parameters (Phi(PSII), F-v'/F-m', and qL) as well as photosynthetic rates, indicating that exogenous sodium acetate suppressed photosynthetic activity. However, additional sodium acetate increased respiratory rates. It can be speculated that the enhanced respiration plays an important role in the acceleration of astaxanthin accumulation in the presence of sodium acetate, because acetate can be utilized by the respiratory tricarboxylic acid cycle to generate the carbon skeletons and NAD(P)H for astaxanthin synthesis. Moreover, the level of photoinhibition decreased after adding sodium acetate, which is indicated by the fact that the decrease of the F-v/F-m value from predawn to midday declined on day 4 and day 6. NPQ increased significantly with additional sodium acetate on day 4 and day 6, indicating that additional sodium acetate induced a mechanism to protect algal cells against photoinhibition. Taken together, exogenous sodium acetate enhances astaxanthin accumulation and the photoprotection capacity of H. pluvialis at the non-motile stage.
KeywordHaematococcus pluvialis Exogenous sodium acetate Astaxanthin accumulation Photoprotection Photoinhibition
DOI10.1007/s10811-018-1622-z
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[31572639] ; National Natural Science Foundation of China[U1706209]
WOS Research AreaBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS SubjectBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS IDWOS:000463988500019
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/161108
Collection实验海洋生物学重点实验室
Corresponding AuthorLiu, Jianguo
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Expt Marine Biol, Qingdao 266071, Shandong, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Yunnan Alphy Biotech Co Ltd, Natl Local Joint Engn Res Ctr Haematococcus Pluvi, Chuxiong 675012, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang, Chunhui,Zhang, Litao,Liu, Jianguo. Exogenous sodium acetate enhances astaxanthin accumulation and photoprotection in Haematococcus pluvialis at the non-motile stage[J]. JOURNAL OF APPLIED PHYCOLOGY,2019,31(2):1001-1008.
APA Zhang, Chunhui,Zhang, Litao,&Liu, Jianguo.(2019).Exogenous sodium acetate enhances astaxanthin accumulation and photoprotection in Haematococcus pluvialis at the non-motile stage.JOURNAL OF APPLIED PHYCOLOGY,31(2),1001-1008.
MLA Zhang, Chunhui,et al."Exogenous sodium acetate enhances astaxanthin accumulation and photoprotection in Haematococcus pluvialis at the non-motile stage".JOURNAL OF APPLIED PHYCOLOGY 31.2(2019):1001-1008.
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