globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1719335115
论文题名:
Oceanographic boundaries constrain microbial diversity gradients in the south pacific ocean
作者: Raes E.J.; Bodrossy L.; Van De Kamp J.; Bissett A.; Ostrowski M.; Brown M.V.; Sow S.L.S.; Sloyan B.; Waite A.M.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2018
卷: 115, 期:35
起始页码: E8266
结束页码: E8275
语种: 英语
英文关键词: Eukaryotes ; Latitude ; Prokaryotes ; Rapoport’s rule ; Richness
Scopus关键词: surface water ; archaeon ; Article ; correlational study ; latitude ; microbial diversity ; nonhuman ; oceanography ; Pacific Ocean ; phytoplankton ; priority journal ; Southern Ocean ; species richness ; temperature sensitivity ; Antarctica ; bacterial phenomena and functions ; bacterium ; biodiversity ; classification ; microbiology ; Pacific Ocean ; physiology ; Antarctic Regions ; Archaea ; Bacteria ; Bacterial Physiological Phenomena ; Biodiversity ; Pacific Ocean ; Phytoplankton ; Water Microbiology
英文摘要: Marine microbes along with microeukaryotes are key regulators of oceanic biogeochemical pathways. Here we present a high-resolution (every 0.5° of latitude) dataset describing microbial pro- and eukaryotic richness in the surface and just below the thermocline along a 7,000-km transect from 66°S at the Antarctic ice edge to the equator in the South Pacific Ocean. The transect, conducted in austral winter, covered key oceanographic features including crossing of the polar front (PF), the subtropical front (STF), and the equatorial upwelling region. Our data indicate that temperature does not determine patterns of marine microbial richness, complementing the global model data from Ladau et al. [Ladau J, et al. (2013) ISME J 7:1669–1677]. Rather, NH4 +, nanophytoplankton, and primary productivity were the main drivers for archaeal and bacterial richness. Eukaryote richness was highest in the least-productive ocean region, the tropical oligotrophic province. We also observed a unique diversity pattern in the South Pacific Ocean: a regional increase in archaeal and bacterial diversity between 10°S and the equator. Rapoport’s rule describes the tendency for the latitudinal ranges of species to increase with latitude. Our data showed that the mean latitudinal ranges of archaea and bacteria decreased with latitude. We show that permanent oceanographic features, such as the STF and the equatorial upwelling, can have a significant influence on both alpha-diversity and beta-diversity of pro- and eukaryotes. © National Academy of Sciences. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163669
Appears in Collections:气候变化与战略

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作者单位: Raes, E.J., Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, 27570, Germany, Oceans Institute M047, University of Western Australia, Crawley, WA 6009, Australia, Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation, Hobart, TAS 7001, Australia; Bodrossy, L., Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation, Hobart, TAS 7001, Australia; Van De Kamp, J., Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation, Hobart, TAS 7001, Australia; Bissett, A., Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation, Hobart, TAS 7001, Australia; Ostrowski, M., Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, NSW 2109, Australia; Brown, M.V., School of Environmental and Life Sciences, Faculty of Science, University of Newcastle, Callaghan, NSW 2308, Australia; Sow, S.L.S., Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation, Hobart, TAS 7001, Australia, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia; Sloyan, B., Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation, Hobart, TAS 7001, Australia; Waite, A.M., Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, 27570, Germany, FB2 Biology/Chemistry, Universität Bremen, Bremen, D-28334, Germany

Recommended Citation:
Raes E.J.,Bodrossy L.,Van De Kamp J.,et al. Oceanographic boundaries constrain microbial diversity gradients in the south pacific ocean[J]. Proceedings of the National Academy of Sciences of the United States of America,2018-01-01,115(35)
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