Aluminum effects on marine phytoplankton: implications for a revised Iron Hypothesis (Iron-Aluminum Hypothesis)
文献类型：期刊论文
| 作者 | Fortin, C; Zhou, LB; Tan, YH; Huang, LM; Campbell, PGC |
| 刊名 | BIOGEOCHEMISTRY
 |
| 出版日期 | 2018 |
| 卷号 | 139期号:2页码:123-137 |
| 通讯作者 | zhoulb@scsio.ac.cn ; tanyh@scsio.ac.cn |
| 英文摘要 | In contrast to substantial studies and established knowledge of aluminum (Al) effects (mainly toxicity) on freshwater organisms and terrestrial plants, and even on human health, only a few studies of Al effects on marine organisms have been reported, and our understanding of the role of Al in marine biogeochemistry is limited. In this paper, we review the results of both field and laboratory experiments on the effects of Al on marine organisms, including Al toxicity to marine phytoplankton and the beneficial effects of Al on marine phytoplankton growth, and we discuss possible links of Al to the biological pump and the global carbon cycle. We propose a revised Iron (Fe) Hypothesis, i.e., the Fe-Al Hypothesis that introduces the idea that Al as well as Fe play an important role in the glacial-interglacial change in atmospheric CO2 concentrations and climate change. We propose that Al could not only facilitate Fe utilization, dissolved organic phosphorus utilization and nitrogen fixation by marine phytoplankton, enhancing phytoplankton biomass and carbon fixation in the upper oceans, but also reduce the decomposition and decay of biogenic matter. As a result, Al allows potentially more carbon to be exported and sequestered in the ocean depths through the biological pump. We also propose that Al binds to superoxide to form an Al-superoxide complex, which could catalyze the reduction of Fe(III) to Fe(II) and thus facilitate Fe utilization by marine phytoplankton and other microbes. Further ocean fertilization experiments with Fe and Al are suggested, to clarify the role of Al in the stimulation of phytoplankton growth and carbon sequestration in the ocean depths. |
| 学科主题 | Environmental Sciences & Ecology; Geology |
| 关键词[WOS] | Aluminum ; Marine phytoplankton ; Iron Hypothesis ; Fe-Al Hypothesis ; Beneficial effects ; Biological pump |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/16925]  |
| 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 |
| 推荐引用方式 GB/T 7714 | Fortin, C,Zhou, LB,Tan, YH,et al. Aluminum effects on marine phytoplankton: implications for a revised Iron Hypothesis (Iron-Aluminum Hypothesis)[J]. BIOGEOCHEMISTRY,2018,139(2):123-137. |
| APA | Fortin, C,Zhou, LB,Tan, YH,Huang, LM,&Campbell, PGC.(2018).Aluminum effects on marine phytoplankton: implications for a revised Iron Hypothesis (Iron-Aluminum Hypothesis).BIOGEOCHEMISTRY,139(2),123-137. |
| MLA | Fortin, C,et al."Aluminum effects on marine phytoplankton: implications for a revised Iron Hypothesis (Iron-Aluminum Hypothesis)".BIOGEOCHEMISTRY 139.2(2018):123-137. |
入库方式： OAI收割
来源：南海海洋研究所
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。