| 二氧化碳加富与阳光紫外辐射对球形棕囊藻的耦合效应 |
| |
| 引用本文： | 陈善文,高坤山.二氧化碳加富与阳光紫外辐射对球形棕囊藻的耦合效应[J].海洋学报,2011,33(4):155-162. |
| |
| 作者姓名： | 陈善文 高坤山 |
| |
| 作者单位： | 1.汕头大学 海洋生物研究所,广东 汕头 515063 |
| |
| 基金项目： | 国家自然科学基金项目(40930846);"长江学者和创新团队发展计划"(IRT0941)。 |
| |
| 摘 要： | 在含有和滤除紫外(UV)辐射(UVR,280～400 nm)的阳光条件下,向静止、恒温的培养体系中分别充含390×10-6和800×10-6体积CO2的空气,以期探讨CO2浓度升高与阳光UV辐射对球形棕囊藻(Phaeocystis globosa Scherffel)的生理生态学影响.结果显示,该藻对CO2加富和UVR...
|
| 关 键 词： | 二氧化碳 紫外辐射 生长 光化效率 球形棕囊藻 |
| 收稿时间： | 2010/11/18 0:00:00 |
The coupled effects of carbon dioxide enrichment and ultroviolet radiation on Phaeocystis globosa Scherffel |
| |
| CHEN Shan-wen and GAO Kun-shan.The coupled effects of carbon dioxide enrichment and ultroviolet radiation on Phaeocystis globosa Scherffel[J].Acta Oceanologica Sinica (in Chinese),2011,33(4):155-162. |
| |
| Authors: | CHEN Shan-wen and GAO Kun-shan |
| |
| Affiliation: | 1.Marine Biology Institute, Shantou University, Shantou 515063, China2.State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China |
| |
| Abstract: | CO2 perturbation experiments were carried out under the solar radiation with or without UV radiation (280~400 nm) in a temperature-controlled water bath to evaluate the coupled effects of CO2 and UVR on Phaeocystis globosa Scherffel that forms harmful algal blooms. The results show that both of high CO2 and UVR stress on the algae. The high concentration CO2 decreases a specific growth rate and the photochemical efficiency of the algae by up to 11.0% and 10.7%, respectively, and the UVR does further them 19.2% and 41.7%. With its cell density increasing, however, their inhibition to the alga was declining, and to minus value. UVR decreases its maximal relative electron transpert rate and photosynthetic efficiency by 14.1% and 21.0%, respectively, in ambient air, and additional 8.2% and 17.6% in the CO2-enriched. CO2 enrichment increases chlorophyll a, chlorophyll c and carotenoids by 4.6%,5.9% and 5.2%, respectively. The UVR increases carotenoids by 4.3%. The studies indicate that the high concentration CO2 aggravates the damage of UVR to the algae, which increaseds in carotenoids as a protective response. |
| |
| Keywords: | carbon dioxide growht photochemical efficiency Phaeocystis globosa ultroviolet |
|
| 点击此处可从《海洋学报》浏览原始摘要信息 |
|
点击此处可从《海洋学报》下载全文 |
|
