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Dissecting the physiological response to phosphorus stress in marine synechococcus isolates (cyanophyceae)
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Mazard, Sophie, Wilson, William H. and Scanlan, David J. (2012) Dissecting the physiological response to phosphorus stress in marine synechococcus isolates (cyanophyceae). Journal of Phycology , Vol.48 (No.1). pp. 94-105. doi:10.1111/j.1529-8817.2011.01089.x ISSN 00223646.
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Official URL: http://dx.doi.org/10.1111/j.1529-8817.2011.01089.x
Abstract
Marine Synechococcus is ubiquitous in aquatic environments. However, distinct phylogenetic lineages of this genus have a complex ecological distribution that is not fully explained. Here, we undertook a broad study of the phosphorus (P)related behavior of marine Synechococcus isolates from all previously described ribotypes (sensu Fuller et similar to al. 2003). A wide variability in P-related physiology was noted among members of this genus, particularly in the utilization of organic P sources. However, some characteristics (e.g., cell size change during P limitation and the ability to accumulate polyphosphate) were largely consistent with their phylogenetic lineage and inferred ecology, with clear distinctions between oligotrophic, mesotrophic, and opportunistic lineages. Similarly, the ability to induce protein expression in response to P limitation was consistent with the presence/absence of phoB/R regulatory capacity of the corresponding strain. Taxonomic differences in P uptake, storage, and utilization strategies could explain the ubiquitous distribution of marine Synechococcus throughout the worlds oceans and explain the coexistence and/or ecological partitioning of multiple phototrophic taxa in the photic zone of tropical and subtropical oligotrophic oceans.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > Q Science (General) | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||
| Journal or Publication Title: | Journal of Phycology | ||||
| Publisher: | Wiley-Blackwell Publishing, Inc. | ||||
| ISSN: | 00223646 | ||||
| Official Date: | February 2012 | ||||
| Dates: |
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| Volume: | Vol.48 | ||||
| Number: | No.1 | ||||
| Number of Pages: | 12 | ||||
| Page Range: | pp. 94-105 | ||||
| DOI: | 10.1111/j.1529-8817.2011.01089.x | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | NERC | ||||
| Grant number: | NER/S/A/2003/11396 |
Data sourced from Thomson Reuters' Web of Knowledge
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