中国科学院水生生物研究所机构知识库
Advanced  
IHB OpenIR  > 中科院水生所知识产出(2009年前)  > 期刊论文
题名: Short-term effects of solar ultraviolet radiation on the photochemical efficiency of Spirulina platensis in non-aerated and aerated cultures
作者: Wu Hong-Yan ; Gao Kun-Shan (ksgao@stu.edu.cn) ; Teruo Watanabe
通讯作者: Wu Hong-Yan ; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
刊名: Acta Hydrobiologica Sinica
发表日期: 2005
卷: 29, 期:6, 页:673-677
收录类别: 其他
英文摘要: Continuous depletion of the stratospheric ozone layer results in increasing solar ultraviolet radiation(UVR) reaching the earth's surface. Which has been considered to affect living organisms. Solar UVR may also affect a variety of physiological and biochemical processes in the economic cyanobacterium, Spirulina platensis. However, little has been documented on the aspect. The present study evaluated the short-term effects of UVR on photochemical efficiency of S. platensis in aerated and non-aerated cultures while exposing it to full-spectrum solar radiation(PAB), solar radiation depleted of UVB(PA) and solar radiation deprived of total UV(P:PAR).It was found that both UVR and PAR inhibited the photochemical efficiency during noontime(11:00-13:00), however, UVR+PAR(PAB) resulted in higher inhibition. In aerated cultures, PAR resulted in 11%similar to 20% compared to the initial value in the morning (07:00), UVR(PAB-P) brought about 9%similar to 31% extra photoinhibition. While in non-aerated cultures, the photochemical effciency could not be detected when exposed to UVR. The greatest inhibition was observed at noontime, and the recovery was achieved in late afternoon (17:00) in both the aerated and non-aerated cultures. UVR increased the ratio of carotenoids or phycocyanin to chlorophylla. Compared with PAB and P treatments, cells exposed to PA showed higher values of the pigment ratios, indicating a possibility that UVA may enhance the synthesis of carotenoids and phyocyanin. Although S. platensis was negatively affected by UVR, it tended to develop mechanisms counteracting the damaging effects of UVR during this short-term exposure period, such as down-regulation of the photosynthetic activity of accumulation of the carotenoids.
ISSN号: 1000-3207
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/18459
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Short-term effects of solar ultraviolet radiation on the photochemical efficiency of Spirulina platensis in non-aerated and aerated cultures.pdf(604KB)----开放获取--View Download

Recommended Citation:
Wu Hong-Yan; Gao Kun-Shan (ksgao@stu.edu.cn) ; Teruo Watanabe.Short-term effects of solar ultraviolet radiation on the photochemical efficiency of Spirulina platensis in non-aerated and aerated cultures,Acta Hydrobiologica Sinica,2005,29(6):673-677
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Wu Hong-Yan]'s Articles
[Gao Kun-Shan (ksgao@stu.edu.cn)]'s Articles
[Teruo Watanabe]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Wu Hong-Yan]‘s Articles
[Gao Kun-Shan (ksgao@stu.edu.cn)]‘s Articles
[Teruo Watanabe]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Short-term effects of solar ultraviolet radiation on the photochemical efficiency of Spirulina platensis in non-aerated and aerated cultures.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

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

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院水生生物研究所 - Feedback
Powered by CSpace