Repository logo
 

Towards understanding the prokaryotic contributions to cobalamin cycling in the Northwest Atlantic

dc.contributor.authorSoto Rojas, Maria Alejandra
dc.contributor.copyright-releaseNot Applicableen_US
dc.contributor.degreeMaster of Scienceen_US
dc.contributor.departmentDepartment of Biologyen_US
dc.contributor.ethics-approvalNot Applicableen_US
dc.contributor.external-examinerAmanda Cockshutten_US
dc.contributor.graduate-coordinatorSophia Stoneen_US
dc.contributor.manuscriptsNot Applicableen_US
dc.contributor.thesis-readerChris Algaren_US
dc.contributor.thesis-readerJulie LaRocheen_US
dc.contributor.thesis-supervisorErin M. Bertranden_US
dc.date.accessioned2021-04-07T11:45:40Z
dc.date.available2021-04-07T11:45:40Z
dc.date.defence2021-03-19
dc.date.issued2021-04-07T11:45:40Z
dc.description.abstractCobalamin has the potential to limit primary productivity and shape the structure and ecological interactions of marine microbial communities. The identification of major sources and sinks of this vitamin is needed in order to understand its availability in the ocean. In this thesis, assembly-based and short-read-based approaches were combined to analyze metagenomic samples from the Scotian Shelf and Slope region of the Northwest Atlantic. This resulted in the first identification of major producers, remodelers and consumers of cobalamin and related compounds in this region. Mass-spectrometry tools to monitor the contribution of Synechococcus, an important cyanobacterial group, to the cobalamin cycle in the Northwest Atlantic were also identified. The implementation of these tools in culture experiments enabled the identification of environmental and physiological factors with potential to affect cyanobacterial contributions to cobalamin cycling in this region. In sum, this thesis is a step towards elucidating the influence that cobalamin may have on marine primary productivity and microbial ecological interactions in the Northwest Atlantic.en_US
dc.identifier.urihttp://hdl.handle.net/10222/80338
dc.language.isoenen_US
dc.subjectmetagenomicsen_US
dc.subjectScotian Shelfen_US
dc.subjectcobalamin cycleen_US
dc.subjectproteomicsen_US
dc.titleTowards understanding the prokaryotic contributions to cobalamin cycling in the Northwest Atlanticen_US
dc.typeThesisen_US

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
MariaAlejandraSotoRojas2021.pdf
Size:
2.77 MB
Format:
Adobe Portable Document Format
Description:
Thesis document

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description: