Main content

The effect of elevated carbon dioxide on whole-plant respiration, photosynthesis and net carbon gain of Arabidopsis thaliana having altered mitochondrial pyruvate dehydrogenase kinase expressed constitutively

Show simple item record

dc.contributor.advisor Grodzinski, Bernard
dc.contributor.advisor Micallef, Barry
dc.contributor.author Rauf, Shezad
dc.date.accessioned 2012-01-13T20:30:10Z
dc.date.available 2012-01-13T20:30:10Z
dc.date.copyright 2012-01
dc.date.created 2012-01-10
dc.date.issued 2012-01-13
dc.identifier.uri http://hdl.handle.net/10214/3278
dc.description.abstract Two Arabidopsis lines, 10’4 and 3’1, with partial-repression, constitutively of mitochondrial pyruvate dehydrogenase kinase that could alter dark respiration (Rd) were grown on rockwool to reduce off-gassing from peat that interfered with assessment of Rd. At the rosette stage, Rd and photosynthesis (Pn) at high CO2 were greater than at ambient CO2, and Rd was greater for whole-plant than single leaf measurements due to the contribution of non-laminar tissues. However, whole-plant and leaf Rd and Pn were similar on a leaf-area-basis comparing mutants with controls. Whole-plant, analyses during reproductive stage showed that although, the inflorescence contributed as much as 90% of daily C-gain when the rosette leaves senesced, canopy-Pn on a surface-area-basis at each CO2 level remained similar to those at the rosette stage. At each CO2 level, the transgenic and control lines were similar indicating that the mutation resulted in no direct or indirect effect of Rd or Pn. en_US
dc.description.sponsorship Ontario Graduate Scholarship, Green Crop Net Work en_US
dc.language.iso en en_US
dc.subject mtPDC en_US
dc.subject mtPDHK en_US
dc.subject NCER en_US
dc.subject Elevated CO2 en_US
dc.title The effect of elevated carbon dioxide on whole-plant respiration, photosynthesis and net carbon gain of Arabidopsis thaliana having altered mitochondrial pyruvate dehydrogenase kinase expressed constitutively en_US
dc.type Thesis en_US
dc.degree.programme Plant Agriculture en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Plant Agriculture en_US


Files in this item

Files Size Format View
Shezad Rauf MSC Thesis.pdf 2.217Mb PDF View/Open

This item appears in the following Collection(s)

Show simple item record