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 |
| DOI | 10.1186/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。