The role of photorespiration during astaxanthin accumulation in Haematococcus pluvialis (Chlorophyceae)

	The role of photorespiration during astaxanthin accumulation in Haematococcus pluvialis (Chlorophyceae)
	Zhang, Chunhui1,3 ; Zhang, Litao 1,2; Liu, Jianguo 1,2
刊名	PLANT PHYSIOLOGY AND BIOCHEMISTRY
	2016-10-01
卷号	107 页码:75-81
关键词	Astaxanthin accumulation Haematococcus pluvialis Photorespiration Photosynthesis
英文摘要	Most 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.
收录类别	SCI
语种	英语
WOS记录号	WOS:000382341600008
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/135756]
专题	海洋研究所_海洋生物技术研发中心
作者单位	1.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
推荐引用方式 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.