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The role of photorespiration during astaxanthin accumulation in Haematococcus pluvialis (Chlorophyceae)
Zhang, Chunhui1,3; Zhang, Litao1,2; Liu, Jianguo1,2
2016-10-01
Source PublicationPLANT PHYSIOLOGY AND BIOCHEMISTRY
Volume107Pages:75-81
SubtypeArticle
AbstractMost previous studies on Haematococcus pluvialis have been focused on growth and astaxanthin accumulation. However, the relationships between photorespiration and astaxanthin accumulation have not been clarified. The purpose of this study was to examine the role of photorespiration during the process of astaxanthin accumulation in H. pluvialis. During astaxanthin accumulation, the astaxanthin content was reduced significantly when photorespiration was inhibited by its specific inhibitor, carboxymethoxylamine. The inhibition of photorespiration did not change the dry weight, chlorophyll content and OJIP transients during the incubation; however, the inhibition of photorespiration significantly decreased the photochemistry of photosystem II and total photosynthetic O-2 evolution capacity. Moreover, the restriction in photorespiration was synchronized with a decrease of astaxanthin accumulation. These results suggest that the photorespiratory pathway in H. pluvialis can accelerate astaxanthin accumulation. We speculate that photorespiration can enhance astaxanthin accumulation in the following ways: (i) photorespiration directly affects the glycerate-3-phosphate (PGA) level, which is intrinsically related to the accumulation of astaxanthin in H. pluvialis; (ii) the photorespiratory pathway indirectly affects the PGA level by effecting the dark reactions of photosynthesis, which then results in the enhancement of astaxanthin accumulation in H. pluvialis. (C) 2016 Elsevier Masson SAS. All rights reserved.
KeywordAstaxanthin Accumulation Haematococcus Pluvialis Photorespiration Photosynthesis
DOI10.1016/j.plaphy.2016.05.029
Indexed BySCI
Language英语
WOS IDWOS:000382341600008
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/135756
Collection海洋生物技术研发中心
Affiliation1.Chinese Acad Sci, Inst Oceanol, Natl & Local Joint Engn Lab Ecol Mariculture, 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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang, Chunhui,Zhang, Litao,Liu, Jianguo. The role of photorespiration during astaxanthin accumulation in Haematococcus pluvialis (Chlorophyceae)[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2016,107:75-81.
APA Zhang, Chunhui,Zhang, Litao,&Liu, Jianguo.(2016).The role of photorespiration during astaxanthin accumulation in Haematococcus pluvialis (Chlorophyceae).PLANT PHYSIOLOGY AND BIOCHEMISTRY,107,75-81.
MLA Zhang, Chunhui,et al."The role of photorespiration during astaxanthin accumulation in Haematococcus pluvialis (Chlorophyceae)".PLANT PHYSIOLOGY AND BIOCHEMISTRY 107(2016):75-81.
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