Algal density mediates the photosynthetic responses of a marine macroalga Ulva conglobata (Chlorophyta) to temperature and pH changes
文献类型：期刊论文
| 作者 | Li, Gang1; Qin, Zhen3; Zhang, Jiejun5; Lin, Qiang1; Ni, Guangyan2; Tan, Yehui1,3; Zou, Dinghui5 |
| 刊名 | ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
 |
| 出版日期 | 2020 |
| 卷号 | 46页码:101797 |
| 关键词 | Biomass density Dark respiration pH Photosynthesis Temperature Ulva conglobata |
| ISSN号 | 2211-9264 |
| DOI | 10.1016/j.algal.2020.101797 |
| 英文摘要 | Growing of macroalgae increases their biomass densities in natural habitats. To explore how the altered algal density impacts their photosynthetic responses to changes of environmental factors, we compared the photosynthesis versus irradiance characteristics of a marine green macroalga Ulva conglobata under low [2.0 g fresh weight (FW) L-1], medium (6.0 g FW L-1) and high biomass densities (12.0 g FW L-1), and under a matrix of temperatures (20, 25, 30 and 35 degrees C) and pH levels (7.8, 8.2 and 8.6). Increased algal densities decreased the photosynthetic O-2 evolution rate among all combined temperature and pH treatments, in parallel with the decrease of light-utilizing efficiency (a, the initial slope) and maximum photosynthetic rate (Pmax) and the increase of light saturation point (E-K). Rising temperature interacted with lowered pH to increase the alpha under low but not under high algal densities. Rising temperature increased the Pmax and decreased the E-K under low algal density, but not under high density. Lowered pH promoted the Pmax and E-K under all three algal densities. The increased temperature enhanced the dark respiration (Rd) and light compensation point (E-c), while the altered pH showed a limited effect. Moreover, the increased algal density reduced the Rd, and had a limited effect on the E-c. In addition, our results indicate that changing algal densities caused the complex photo-physiological changes in responses to the temperature and pH changes, and these complex responses resolved into a close relation between Rd and Pmax across the matrix of temperatures and pH levels. |
| 资助机构 | National Key Research and Development Program of China [2019YFA0606704]; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) [GML2019ZD0407]; Special Foundation for National Science and Technology Basic Research Program of China [2018FY100104]; Natural Science Foundation of Guangdong ProvinceNational Natural Science Foundation of Guangdong Province [2018B030311029, 2019B121202001]; Guangzhou Municipal Science and Technology Project [201707010226, 201904010287]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41676156, 31741018, 31971498]; K.C. Wong Education Foundation ; National Key Research and Development Program of China [2019YFA0606704]; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) [GML2019ZD0407]; Special Foundation for National Science and Technology Basic Research Program of China [2018FY100104]; Natural Science Foundation of Guangdong ProvinceNational Natural Science Foundation of Guangdong Province [2018B030311029, 2019B121202001]; Guangzhou Municipal Science and Technology Project [201707010226, 201904010287]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41676156, 31741018, 31971498]; K.C. Wong Education Foundation |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18489]  |
| 专题 | 南海海洋研究所_中科院海洋生物资源可持续利用重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Peoples R China 2.South China Univ Technol, Coll Environm & Energy, Guangzhou 510006, Peoples R China 3.Chinese Acad Sci, Key Lab Vegetat Restorat & Management Degraded Ec, South China Bot Garden, Guangzhou 510160, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Southern Marine Sci & Engn Guangdong Lab, Guangzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Gang,Qin, Zhen,Zhang, Jiejun,et al. Algal density mediates the photosynthetic responses of a marine macroalga Ulva conglobata (Chlorophyta) to temperature and pH changes[J]. ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,2020,46:101797. |
| APA | Li, Gang.,Qin, Zhen.,Zhang, Jiejun.,Lin, Qiang.,Ni, Guangyan.,...&Zou, Dinghui.(2020).Algal density mediates the photosynthetic responses of a marine macroalga Ulva conglobata (Chlorophyta) to temperature and pH changes.ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,46,101797. |
| MLA | Li, Gang,et al."Algal density mediates the photosynthetic responses of a marine macroalga Ulva conglobata (Chlorophyta) to temperature and pH changes".ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS 46(2020):101797. |
入库方式： OAI收割
来源：南海海洋研究所
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