IOCAS-IR  > 海洋生物技术研发中心
Effects of heat stress on photosynthetic electron transport in a marine cyanobacterium Arthrospira sp.
Zhang, Litao1; Liu, Jianguo1,2
2016-04-01
Source PublicationJOURNAL OF APPLIED PHYCOLOGY
Volume28Issue:2Pages:757-763
SubtypeArticle
AbstractArthrospira (Spirulina) is widely used as human health food and animal feed. In cultures grown outdoors in open ponds, Arthrospira cells are subjected to various environmental stresses, such as high temperature. A better understanding of the effects of high temperature on photosynthesis may help optimize the productivity of Arthrospira cultures. In this study, the effects of heat stress on photosynthetic rate, chlorophyll a fluorescence transients, and photosystem (PS) II, PSI activities in a marine cyanobacterium Arthrospira sp. were examined. Arthrospira cells grown at 25 A degrees C were treated for 30 min at 25 (control), 30, 34, 37, or 40 A degrees C in the dark. Heat stress (30-37 A degrees C) enhanced net photosynthetic O-2 evolution rate. Heat stress caused over-reduction PSII acceptor side, damage of donor side of PSII, decrease in the energetic connectivity of PSII units, and decrease in the performance of PSII. When the temperature changed from 25 to 37 A degrees C, PSII activity decreased, while PSI activity increased, the enhancement of photosynthetic O-2 evolution was synchronized with the increase in PSI activity. When temperature was further increased to 40 A degrees C, it induced a decrease in photosynthetic O-2 evolution rate and a more severe decrease in PSII activity, but an increase in PSI activity. These results suggest that PSI activity was the decisive factor determining the change of photosynthetic O-2 evolution when Arthrospira was exposed to a temperature from 25 to 37 A degrees C, but then, PSII activity became the decisive factor adjusting the change of photosynthetic O-2 evolution when the temperature was increased to 40 A degrees C.
KeywordArthrospira Electron Transport Heat Stress Photosynthesis
DOI10.1007/s10811-015-0615-4
Indexed BySCI
Language英语
WOS IDWOS:000372256900005
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/126205
Collection海洋生物技术研发中心
Affiliation1.Chinese Acad Sci, Inst Oceanol, Natl & Local Joint Engn Lab Ecol Mariculture, Qingdao 266071, Shandong, Peoples R China
2.Chinese Acad Sci, Nantong Branch, Inst Oceanol, Nantong 226004, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Litao,Liu, Jianguo. Effects of heat stress on photosynthetic electron transport in a marine cyanobacterium Arthrospira sp.[J]. JOURNAL OF APPLIED PHYCOLOGY,2016,28(2):757-763.
APA Zhang, Litao,&Liu, Jianguo.(2016).Effects of heat stress on photosynthetic electron transport in a marine cyanobacterium Arthrospira sp..JOURNAL OF APPLIED PHYCOLOGY,28(2),757-763.
MLA Zhang, Litao,et al."Effects of heat stress on photosynthetic electron transport in a marine cyanobacterium Arthrospira sp.".JOURNAL OF APPLIED PHYCOLOGY 28.2(2016):757-763.
Files in This Item:
File Name/Size DocType Version Access License
Effects of heat stre(242KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, Litao]'s Articles
[Liu, Jianguo]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, Litao]'s Articles
[Liu, Jianguo]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, Litao]'s Articles
[Liu, Jianguo]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Effects of heat stress on photosynthetic electron transport in a marine cyanobacterium Arthrospira.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.