Luxury uptake of aerosol iron by Trichodesmium in the western tropical North Atlantic
Dust transported from North Africa carries micronutrient iron (Fe) to the western tropical North Atlantic (WTNA) which may significantly influence the metabolism of the N2-fixing cyanobacteria, Trichodesmium. For the first time, we conducted shipboard incubation experiments using freshly collected a...
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ftcsic:oai:digital.csic.es:10261/58639 2024-02-11T10:06:10+01:00 Luxury uptake of aerosol iron by Trichodesmium in the western tropical North Atlantic Chen, Ying Tovar-Sánchez, Antonio Siefert, Ronald L. Sañudo-Wilhelmy, Sergio A. Zhuang, Guoshun 2011 http://hdl.handle.net/10261/58639 https://doi.org/10.1029/2011GL048972 en eng American Geophysical Union doi:10.1029/2011GL048972 issn: 0094-8276 Geophysical Research Letteres 38 (2011) http://hdl.handle.net/10261/58639 open artículo http://purl.org/coar/resource_type/c_6501 2011 ftcsic https://doi.org/10.1029/2011GL048972 2024-01-16T09:41:48Z Dust transported from North Africa carries micronutrient iron (Fe) to the western tropical North Atlantic (WTNA) which may significantly influence the metabolism of the N2-fixing cyanobacteria, Trichodesmium. For the first time, we conducted shipboard incubation experiments using freshly collected aerosol, seawater, and Trichodesmium colonies. Trichodesmium assimilated significant amount of aerosol Fe up to 14 times higher than the control. The uptake amount increased proportionally to the P: Fe ratio that Trichodesmium initially contained and to the aerosol Fe added and leached to the incubation solution. Trichodesmium assimilated more aerosol Fe than needed for its maximum growth (0.14 d-1) demonstrating a high capacity of luxury uptake of Fe from the dust. Copyright 2011 by the American Geophysical Union. This work is sponsored by China Shanghai Pujiang Program (09PJ1401200), China National Natural Science Foundation (41005075), and Program for New Century Excellent Talents in University (NCET-09-0308). Peer Reviewed Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Geophysical Research Letters 38 18 n/a n/a |
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Digital.CSIC (Spanish National Research Council) |
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English |
description |
Dust transported from North Africa carries micronutrient iron (Fe) to the western tropical North Atlantic (WTNA) which may significantly influence the metabolism of the N2-fixing cyanobacteria, Trichodesmium. For the first time, we conducted shipboard incubation experiments using freshly collected aerosol, seawater, and Trichodesmium colonies. Trichodesmium assimilated significant amount of aerosol Fe up to 14 times higher than the control. The uptake amount increased proportionally to the P: Fe ratio that Trichodesmium initially contained and to the aerosol Fe added and leached to the incubation solution. Trichodesmium assimilated more aerosol Fe than needed for its maximum growth (0.14 d-1) demonstrating a high capacity of luxury uptake of Fe from the dust. Copyright 2011 by the American Geophysical Union. This work is sponsored by China Shanghai Pujiang Program (09PJ1401200), China National Natural Science Foundation (41005075), and Program for New Century Excellent Talents in University (NCET-09-0308). Peer Reviewed |
format |
Article in Journal/Newspaper |
author |
Chen, Ying Tovar-Sánchez, Antonio Siefert, Ronald L. Sañudo-Wilhelmy, Sergio A. Zhuang, Guoshun |
spellingShingle |
Chen, Ying Tovar-Sánchez, Antonio Siefert, Ronald L. Sañudo-Wilhelmy, Sergio A. Zhuang, Guoshun Luxury uptake of aerosol iron by Trichodesmium in the western tropical North Atlantic |
author_facet |
Chen, Ying Tovar-Sánchez, Antonio Siefert, Ronald L. Sañudo-Wilhelmy, Sergio A. Zhuang, Guoshun |
author_sort |
Chen, Ying |
title |
Luxury uptake of aerosol iron by Trichodesmium in the western tropical North Atlantic |
title_short |
Luxury uptake of aerosol iron by Trichodesmium in the western tropical North Atlantic |
title_full |
Luxury uptake of aerosol iron by Trichodesmium in the western tropical North Atlantic |
title_fullStr |
Luxury uptake of aerosol iron by Trichodesmium in the western tropical North Atlantic |
title_full_unstemmed |
Luxury uptake of aerosol iron by Trichodesmium in the western tropical North Atlantic |
title_sort |
luxury uptake of aerosol iron by trichodesmium in the western tropical north atlantic |
publisher |
American Geophysical Union |
publishDate |
2011 |
url |
http://hdl.handle.net/10261/58639 https://doi.org/10.1029/2011GL048972 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.1029/2011GL048972 issn: 0094-8276 Geophysical Research Letteres 38 (2011) http://hdl.handle.net/10261/58639 |
op_rights |
open |
op_doi |
https://doi.org/10.1029/2011GL048972 |
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Geophysical Research Letters |
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38 |
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18 |
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1790603709575593984 |