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DOI | 10.1038/s41558-019-0557-y |
Acidification diminishes diatom silica production in the Southern Ocean | |
Petrou, Katherina1; Baker, Kirralee G.1,2; Nielsen, Daniel A.1; Hancock, Alyce M.3,4,5; Schulz, Kai G.6; Davidson, Andrew T.5,7 | |
2019-10-01 | |
发表期刊 | NATURE CLIMATE CHANGE |
ISSN | 1758-678X |
EISSN | 1758-6798 |
出版年 | 2019 |
卷号 | 9期号:10页码:781-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Australia; England |
英文摘要 | Diatoms, large bloom-forming marine microorganisms, build frustules out of silicate, which ballasts the cells and aids their export to the deep ocean. This unique physiology forges an important link between the marine silicon and carbon cycles. However, the effect of ocean acidification on the silicification of diatoms is unclear. Here we show that diatom silicification strongly diminishes with increased acidity in a natural Antarctic community. Analyses of single cells from within the community reveal that the effect of reduced pH on silicification differs among taxa, with several species having significantly reduced silica incorporation at CO2 levels equivalent to those projected for 2100. These findings suggest that, before the end of this century, ocean acidification may influence the carbon and silicon cycle by both altering the composition of the diatom assemblages and reducing cell ballasting, which will probably alter vertical flux of these elements to the deep ocean. |
领域 | 资源环境 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000487830200020 |
WOS关键词 | CO2 CONCENTRATIONS ; BIOGENIC SILICA ; MARINE DIATOM ; GROWTH-RATE ; RESPONSES ; CARBON ; METABOLISM ; PHYSIOLOGY ; IMPACT |
WOS类目 | Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/187528 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Technol Sydney, Sch Life Sci, Ultimo, NSW, Australia; 2.Univ Essex, Sch Biol Sci, Colchester, Essex, England; 3.Univ Tasmania, Inst Marine & Antarctic Studies, Battery Point, Tas, Australia; 4.Antarctic Gateway Partnership, Battery Point, Tas, Australia; 5.Antarctic Climate & Ecosyst Cooperat Res Ctr, Battery Point, Tas, Australia; 6.Southern Cross Univ, Ctr Coastal Biogeochem, East Lismore, NSW, Australia; 7.Australian Antarctic Div, Dept Environm & Energy, Kingston, Tas, Australia |
推荐引用方式 GB/T 7714 | Petrou, Katherina,Baker, Kirralee G.,Nielsen, Daniel A.,et al. Acidification diminishes diatom silica production in the Southern Ocean[J]. NATURE CLIMATE CHANGE,2019,9(10):781-+. |
APA | Petrou, Katherina,Baker, Kirralee G.,Nielsen, Daniel A.,Hancock, Alyce M.,Schulz, Kai G.,&Davidson, Andrew T..(2019).Acidification diminishes diatom silica production in the Southern Ocean.NATURE CLIMATE CHANGE,9(10),781-+. |
MLA | Petrou, Katherina,et al."Acidification diminishes diatom silica production in the Southern Ocean".NATURE CLIMATE CHANGE 9.10(2019):781-+. |
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