| Title |
The role of siderophores in iron acquisition by photosynthetic marine microorganisms
|
|---|---|
| Published in |
BioMetals, April 2009
|
| DOI | 10.1007/s10534-009-9235-2 |
| Pubmed ID | |
| Authors |
Brian M. Hopkinson, François M. M. Morel |
| Abstract |
The photosynthetic picocyanobacteria and eukaryotic microorganisms that inhabit the open ocean must be able to supply iron for their photosynthetic and respiratory needs from the subnanomolar concentrations available in seawater. Neither group appears to produce siderophores, although some coastal cyanobacteria do. This is interpreted as an adaptation to the dilute oceanic environment rather than a phylogenetic constraint, since there are cases in which related taxa from different environments have the capacity to produce siderophores. Most photosynthetic marine microorganisms are presumably, however, capable of accessing iron from strong chelates since the majority of dissolved iron in seawater is complexed by organic ligands, including siderophores. Rather than direct internalization of siderophores and other iron chelates, marine organisms primarily appear to use uptake pathways that involve a reduction step to free bound iron, closely coupled with transport into the cell. |
Mendeley readers
The data shown below were compiled from readership statistics for 220 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 3 | 1% |
| Hong Kong | 1 | <1% |
| Australia | 1 | <1% |
| Mexico | 1 | <1% |
| South Africa | 1 | <1% |
| Spain | 1 | <1% |
| Denmark | 1 | <1% |
| Unknown | 211 | 96% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 68 | 31% |
| Researcher | 35 | 16% |
| Student > Master | 27 | 12% |
| Student > Bachelor | 14 | 6% |
| Student > Doctoral Student | 13 | 6% |
| Other | 40 | 18% |
| Unknown | 23 | 10% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 62 | 28% |
| Environmental Science | 36 | 16% |
| Earth and Planetary Sciences | 32 | 15% |
| Biochemistry, Genetics and Molecular Biology | 23 | 10% |
| Chemistry | 20 | 9% |
| Other | 17 | 8% |
| Unknown | 30 | 14% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 09 January 2016.
All research outputs
#7,453,126
of 22,785,242 outputs
Outputs from BioMetals
#159
of 642 outputs
Outputs of similar age
#32,900
of 93,447 outputs
Outputs of similar age from BioMetals
#1
of 4 outputs
Altmetric has tracked 22,785,242 research outputs across all sources so far. This one is in the 44th percentile – i.e., 44% of other outputs scored the same or lower than it.
So far Altmetric has tracked 642 research outputs from this source. They receive a mean Attention Score of 4.2. This one has gotten more attention than average, scoring higher than 50% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 93,447 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 19th percentile – i.e., 19% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 4 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them