Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13501 |
Decreased photosynthesis and growth with reduced respiration in the model diatom Phaeodactylum tricornutum grown under elevated CO2 over 1800 generations | |
Li, Futian1; Beardall, John1,2; Collins, Sinead3; Gao, Kunshan1 | |
2017 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2017 |
卷号 | 23期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Australia; Scotland |
英文摘要 | Studies on the long-term responses of marine phytoplankton to ongoing ocean acidification (OA) are appearing rapidly in the literature. However, only a few of these have investigated diatoms, which is disproportionate to their contribution to global primary production. Here we show that a population of the model diatom Phaeodactylum tricornutum, after growing under elevated CO2 (1000 mu atm, HCL, pH(T): 7.70) for 1860 generations, showed significant differences in photosynthesis and growth from a population maintained in ambient CO2 and then transferred to elevated CO2 for 20 generations (HC). The HCL population had lower mitochondrial respiration, than did the control population maintained in ambient CO2 (400 mu atm, LCL, pH(T): 8.02) for 1860 generations. Although the cells had higher respiratory carbon loss within 20 generations under the elevated CO2, being consistent to previous findings, they downregulated their respiration to sustain their growth in longer duration under the OA condition. Responses of phytoplankton to OA may depend on the timescale for which they are exposed due to fluctuations in physiological traits over time. This study provides the first evidence that populations of the model species, P. tricornutum, differ phenotypically from each other after having been grown for differing spans of time under OA conditions, suggesting that long-term changes should be measured to understand responses of primary producers to OA, especially in waters with diatom-dominated phytoplankton assemblages. |
英文关键词 | CO2 diatom growth ocean acidification Phaeodactylum tricornutum photosynthesis respiration |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000390218300012 |
WOS关键词 | MARINE PRIMARY PRODUCERS ; OCEAN ACIDIFICATION ; THALASSIOSIRA-PSEUDONANA ; ULTRAVIOLET-RADIATION ; UV-RADIATION ; PHOTOPHYSIOLOGICAL RESPONSES ; CARBON ACQUISITION ; EMILIANIA-HUXLEYI ; INCREASED PCO(2) ; RISING CO2 |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17230 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361102, Peoples R China; 2.Monash Univ, Sch Biol Sci, Clayton, Vic 3800, Australia; 3.Univ Edinburgh, Inst Evolutionary Biol, Ashworth Labs, Edinburgh EH9 3FL, Midlothian, Scotland |
推荐引用方式 GB/T 7714 | Li, Futian,Beardall, John,Collins, Sinead,et al. Decreased photosynthesis and growth with reduced respiration in the model diatom Phaeodactylum tricornutum grown under elevated CO2 over 1800 generations[J]. GLOBAL CHANGE BIOLOGY,2017,23(1). |
APA | Li, Futian,Beardall, John,Collins, Sinead,&Gao, Kunshan.(2017).Decreased photosynthesis and growth with reduced respiration in the model diatom Phaeodactylum tricornutum grown under elevated CO2 over 1800 generations.GLOBAL CHANGE BIOLOGY,23(1). |
MLA | Li, Futian,et al."Decreased photosynthesis and growth with reduced respiration in the model diatom Phaeodactylum tricornutum grown under elevated CO2 over 1800 generations".GLOBAL CHANGE BIOLOGY 23.1(2017). |
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