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DOI | 10.1073/pnas.2001393117 |
Minimal cobalt metabolism in the marine cyanobacterium Prochlorococcus | |
Hawco, Nicholas J.1,2,8; McIlvin, Matthew M.1; Bundy, Randelle M.1,3; Tagliabue, Alessandro4; Goepfert, Tyler J.1,5; Moran, Dawn M.1; Valentin-Alvarado, Luis1,6; DiTullio, Giacomo R.7; Saito, Mak A.1 | |
2020-06-23 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2020 |
卷号 | 117期号:27页码:15740-15747 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England |
英文摘要 | Despite very low concentrations of cobalt in marine waters, cyanobacteria in the genus Prochlorococcus retain the genetic machinery for the synthesis and use of cobalt-bearing cofactors (cobalamins) in their genomes. We explore cobalt metabolism in a Prochlorococcus isolate from the equatorial Pacific Ocean (strain MIT9215) through a series of growth experiments under iron- and cobalt-limiting conditions. Metal uptake rates, quantitative proteomic measurements of cobalamin-dependent enzymes, and theoretical calculations all indicate that Prochlorococcus MIT9215 can sustain growth with less than 50 cobalt atoms per cell, similar to 100-fold lower than minimum iron requirements for these cells (similar to 5,100 atoms per cell). Quantitative descriptions of Prochlorococcus cobalt limitation are used to interpret the cobalt distribution in the equatorial Pacific Ocean, where surface concentrations are among the lowest measured globally but Prochlorococcus biomass is high. A low minimum cobalt quota ensures that other nutrients, notably iron, will be exhausted before cobalt can be fully depleted, helping to explain the persistence of cobalt-dependent metabolism in marine cyanobacteria. |
英文关键词 | Prochlorococcus vitamin B12 iron Pacific Ocean nutrient limitation |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000548341000001 |
WOS关键词 | DEPENDENT METHIONINE SYNTHASE ; USE EFFICIENCIES ; ESCHERICHIA-COLI ; DISSOLVED COBALT ; PACIFIC-OCEAN ; IRON ; ZINC ; MANGANESE ; ATLANTIC ; PHYTOPLANKTON |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
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/278173 |
专题 | 资源环境科学 |
作者单位 | 1.Woods Hole Oceanog Inst, Dept Marine Chem & Geochem, Woods Hole, MA 02543 USA; 2.Univ Southern Calif, Dept Earth Sci, Los Angeles, CA 90089 USA; 3.Univ Washington, Sch Oceanog, Seattle, WA 98105 USA; 4.Univ Liverpool, Dept Earth Ocean & Ecol Sci, Liverpool L69 G3P, Merseyside, England; 5.Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA; 6.Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA; 7.Coll Charleston, Hollings Marine Lab, Charleston, SC 29412 USA; 8.Univ Hawaii Manoa, Dept Oceanog, Honolulu, HI 96822 USA |
推荐引用方式 GB/T 7714 | Hawco, Nicholas J.,McIlvin, Matthew M.,Bundy, Randelle M.,et al. Minimal cobalt metabolism in the marine cyanobacterium Prochlorococcus[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2020,117(27):15740-15747. |
APA | Hawco, Nicholas J..,McIlvin, Matthew M..,Bundy, Randelle M..,Tagliabue, Alessandro.,Goepfert, Tyler J..,...&Saito, Mak A..(2020).Minimal cobalt metabolism in the marine cyanobacterium Prochlorococcus.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(27),15740-15747. |
MLA | Hawco, Nicholas J.,et al."Minimal cobalt metabolism in the marine cyanobacterium Prochlorococcus".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.27(2020):15740-15747. |
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