Physiological basis for nitrogen fixation in Cylindrospermopsis raciborskii strain CS-505 : an invasive, toxin-producing cyanobacterium that has radiated from tropical to temperate regions worlwide.

Simple item page
dc.contributor.advisorVásquez Pérez, Luz Mónica
dc.contributor.authorMuñoz Plominsky, Álvaro Alfredo
dc.contributor.otherPontificia Universidad Católica de Chile. Facultad de Ciencias Biológicas
dc.date.accessioned2013-11-11T20:47:48Z
dc.date.available2013-11-11T20:47:48Z
dc.date.issued2013
dc.descriptionTesis (Doctor en Ciencias Biológicas, mención Genética Molecular y Microbiología)--Pontificia Universidad Católica de Chile, 2013
dc.description.abstractCyanobacteria are known for their ability to fix carbon and get energy through photosynthesis. Furthermore, some cyanobacteria are capable of fixing N2 when its environment lacks sources of combined nitrogen (diazotrophy). Because the enzyme that converts N2 to NH4 (nitrogenase) is irreversibly inactivated by atmospheric concentrations of O2, diazotrophic cyanobacteria must separate this process from photosynthesis, temporarily (e.g. by fixing N2 in the dark phase of the photoperiod) or generating a micro-oxic environment for nitrogenase. Thus, some multicellular cyanobacteria, which grow forming filamentous structures called trichomes, can differentiate specialized cells to fix N2 (heterocysts) when grown diazotrophically. Most studies have focused on cyanobacteria that differentiate intercalary heterocysts among the vegetative cells of their trichomes. Contrary, this thesis characterized the diazotrophic acclimatization strategy of a cyanobacterium that differentiates heterocysts only at the ends of its trichomes (terminal heterocysts): Cylindrospermopsis raciborskii strain CS-505.
dc.format.extentxi, 112 hojas
dc.identifier.doi10.7764/tesisUC/BIO/2883
dc.identifier.urihttps://doi.org/10.7764/tesisUC/BIO/2883
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/2883
dc.language.isoen
dc.nota.accesoContenido completo
dc.rightsacceso abierto
dc.subject.ddc570
dc.subject.deweyBiologíaes_ES
dc.subject.otherToxinas marinas.es_ES
dc.subject.otherToxinas microbianas.es_ES
dc.subject.otherFijación del nitrógeno.es_ES
dc.titlePhysiological basis for nitrogen fixation in Cylindrospermopsis raciborskii strain CS-505 : an invasive, toxin-producing cyanobacterium that has radiated from tropical to temperate regions worlwide.es_ES
dc.typetesis doctoral
sipa.codpersvinculados160080
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
616549.pdf
Size:
47.67 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
3.06 Tesis doctorado