Exogenous sodium acetate enhances astaxanthin accumulation and photoprotection in Haematococcus pluvialis at the non-motile stage

doi:10.1007/s10811-018-1622-z

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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, Litao 1,2,4; Liu, Jianguo 1,2,4
	2019-04-01
发表期刊	JOURNAL OF APPLIED PHYCOLOGY
ISSN	0921-8971
卷号	31 期号:2 页码:1001-1008
通讯作者	Liu, Jianguo(jgliu@qdio.ac.cn)
摘要	The 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.
关键词	Haematococcus pluvialis Exogenous sodium acetate Astaxanthin accumulation Photoprotection Photoinhibition
DOI	10.1007/s10811-018-1622-z
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[31572639] ; National Natural Science Foundation of China[U1706209] ; National Natural Science Foundation of China[31572639] ; National Natural Science Foundation of China[U1706209]
WOS研究方向	Biotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS类目	Biotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS记录号	WOS:000463988500019
出版者	SPRINGER
引用统计	被引频次：28[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/161108
专题	实验海洋生物学重点实验室
通讯作者	Liu, Jianguo
作者单位	1.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
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 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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