Efficient zinc/cobalt inter‐replacement in northeast Pacific diatoms and relationship to high surface dissolved Co : Zn ratios
Efficient zinc/cobalt inter‐replacement in northeast Pacific diatoms and relationship to high surface dissolved Co : Zn ratios
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东北太平洋硅藻中有效的锌/钴相互置换及其与高表面溶解钴:锌比率的关系
DOI:
10.1002/lno.11471
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发表时间:
2020
影响因子:
4.5
通讯作者:
Saito, Mak A.
中科院分区:
文献类型:
--
作者:
Kellogg, Riss M.;McIlvin, Matthew R.;Vedamati, Jagruti;Twining, Benjamin S.;Moffett, James W.;Marchetti, Adrian;Moran, Dawn M.;Saito, Mak A.
The importance of zinc (Zn) as a nutrient and its ability to be substituted for by cobalt (Co) have been characterized in model marine diatoms. However, the extent to which this substitution capability is distributed among diatom taxa is unknown. Zn/Co metabolic substitution was assayed in four diatom species as measured by the effect of free ion concentrations of Zn2+and Co2+on specific growth rate. Analysis of growth responses found substitution of these metals can occur within the northwest Atlantic isolateThalassiosira pseudonanaCCMP1335, the northeast Atlantic isolatePhaeodactylum tricornutumCCMP632, and within the northeast Pacific isolatesPseudo‐nitzschia delicatissimaUNC1205 andThalassiosirasp. UNC1203. Metabolic substitution of Co in place of Zn in the Atlantic diatoms supports their growth in media lacking added Zn, but at the cost of reduced growth rates. In contrast, highly efficient Zn/Co substitution that supported growth even in media lacking added Zn was observed in the northeast Pacific diatoms. We also present new data from the northeast Pacific Line P transect that revealed dissolved Co and Zn ratios (dCo : dZn) as high as 3.52 : 1 at surface (0–100 m) depths. We posit that the enhanced ability of the NE Pacific diatoms to grow using Co is an adaptation to these high surface dCo : dZn ratios. Particulate metal data and single‐cell metal quotas also suggest a high Zn demand in diatoms that may be partially compensated for by Co.
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影响因子:
5.2
作者:
A. Tagliabue;N. Hawco;R. Bundy;W. Landing;A. Milne;P. Morton;M. Saito
通讯作者:
M. Saito
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
D. Ohnemus;M. Auro;R. Sherrell;Maria Lagerström;P. Morton;B. Twining;Sara Rauschenberg;P. Lam
通讯作者:
P. Lam
影响因子:
4.9
作者:
A. Noble;D. Ohnemus;N. Hawco;P. Lam;M. Saito
通讯作者:
A. Noble;D. Ohnemus;N. Hawco;P. Lam;M. Saito
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
A. Intwala;Tara D. Patey;Damien Polet;M. Twiss
通讯作者:
M. Twiss
DOI:
10.1002/9783527809080.cataz03883
发表时间:
2020
期刊:
Catalysis from A to Z
影响因子:
--
作者:
P. Sears
通讯作者:
P. Sears