中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Antioxidant responses and photosynthetic behaviors of kappaphycus alvarezii and kappaphycus striatum (rhodophyta, solieriaceae) during low temperature stress

文献类型:期刊论文

作者Li, Hu1,2,3; Liu, Jianguo1,2; Zhang, Litao1,2; Pang, Tong1,2
刊名Botanical studies
出版日期2016-08-10
卷号57页码:9
关键词Antioxidant systems Kappaphycus alvarezii Kappaphycus striatum Low temperature stress Photosystem ii
ISSN号1999-3110
DOI10.1186/s40529-016-0136-8
通讯作者Liu, jianguo(jgliu@qdio.ac.cn)
英文摘要Background: kappaphycus are farmed in tropical countries as raw material for carrageenan, which is widely used in food industry. the sea area available for farming is one limiting factor in the production of seaweeds. though cultivation is spreading into subtropical regions, the lower seawater temperature is an important problem encountered in subtropical regions for the farming of kappaphycus. this research of physiological response to low temperature stress will be helpful for screening kappaphycus strains for growth in a lower temperature environment. results: responses of antioxidant systems and photosystem ii (psii) behaviors in kappaphycus alvarezii and kappaphycus striatum were evaluated during low temperature treatments (23, 20, 17 degrees c). compared with the controls at 26 degrees c, the h2o2 concentrations increased in both species when the thalli were exposed to low temperatures (23, 20, 17 degrees c), but these increases were much greater in k. striatum than in k. alvarezii thalli, suggesting that k. striatum suffered more oxidative stress. the activities of some important antioxidant enzymes (e.g. superoxide dismutase and ascorbate peroxidase) and the hydroxyl free radical scavenging capacity were substantially higher at 23, 20 and 17 degrees c than at the control 26 degrees c in k. alvarezii, indicating that the antioxidant system of k. alvarezii enhanced its resistance to low temperature. however, no significant increases of antioxidant enzymes activities were observed at 20 and 17 degrees c in k. striatum. in addition, both the maximal efficiency of psii photochemistry (f-v/f-m) and the performance index (piabs) decreased significantly in k. striatum at 23 degrees c, indicating that the photosynthetic apparatus was damaged at 23 degrees c. in contrast, no significant decreases of either f-v/f-m or piabs were observed in k. alvarezii at 23 degrees c. conclusions: it is concluded that k. alvarezii has greater tolerance to low temperature than k. striatum.
WOS关键词CHLOROPHYLL-A FLUORESCENCE ; EUCHEUMA-DENTICULATUM ; SUPEROXIDE-DISMUTASE ; HYDROGEN-PEROXIDE ; PHOTOSYSTEM-II ; GROWTH ; LIGHT ; DOTY ; CARRAGEENAN ; ENVIRONMENT
WOS研究方向Plant Sciences
WOS类目Plant Sciences
语种英语
WOS记录号WOS:000382388600001
出版者SPRINGER
URI标识http://www.irgrid.ac.cn/handle/1471x/2375292
专题中国科学院大学
通讯作者Liu, Jianguo
作者单位1.Chinese Acad Sci, Inst Oceanol, Natl & Local Joint Engn Lab Ecol Mariculture, Key Lab Expt Marine Biol, 7 Nanhai Rd, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, 1 Wenhai Rd, Qingdao 266071, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Li, Hu,Liu, Jianguo,Zhang, Litao,et al. Antioxidant responses and photosynthetic behaviors of kappaphycus alvarezii and kappaphycus striatum (rhodophyta, solieriaceae) during low temperature stress[J]. Botanical studies,2016,57:9.
APA Li, Hu,Liu, Jianguo,Zhang, Litao,&Pang, Tong.(2016).Antioxidant responses and photosynthetic behaviors of kappaphycus alvarezii and kappaphycus striatum (rhodophyta, solieriaceae) during low temperature stress.Botanical studies,57,9.
MLA Li, Hu,et al."Antioxidant responses and photosynthetic behaviors of kappaphycus alvarezii and kappaphycus striatum (rhodophyta, solieriaceae) during low temperature stress".Botanical studies 57(2016):9.

入库方式: iSwitch采集

来源:中国科学院大学

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。