Withdraw
Loading…
Interactive effects of elevated carbon dioxide concentration with nutrient availability and leaf development on plant carbon metabolism
Markelz, Robert
Loading…
Permalink
https://hdl.handle.net/2142/42170
Description
- Title
- Interactive effects of elevated carbon dioxide concentration with nutrient availability and leaf development on plant carbon metabolism
- Author(s)
- Markelz, Robert
- Issue Date
- 2013-02-03T19:18:12Z
- Director of Research (if dissertation) or Advisor (if thesis)
- Leakey, Andrew D.
- Doctoral Committee Chair(s)
- Leakey, Andrew D.
- Committee Member(s)
- Ort, Donald R.
- Long, Stephen P.
- Clough, Steven J.
- Jacobs, Thomas W.
- Department of Study
- Plant Biology
- Discipline
- Plant Biology
- Degree Granting Institution
- University of Illinois at Urbana-Champaign
- Degree Name
- Ph.D.
- Degree Level
- Dissertation
- Keyword(s)
- elevated carbon dioxide (CO2)
- maize photosynthesis
- drought
- Arabidopsis respiration
- leaf development
- Abstract
- The balance between photosynthetic carbon dioxide (CO2) assimilation and respiratory CO2 release influence plant growth, crop yields, and the ability of terrestrial ecosystems to offset ~2-3 Gt CO2 yr -1 of anthropogenic emissions. Rising atmospheric CO2 concentration ([CO2]) this century will impact plant photosynthesis and respiration with consequences for plant productivity in natural and agro-ecosystems. The capacity of all plants to grow and ecosystems to store carbon in elevated [CO2] can be dependent on interactions with water, nutrients, and plant developmental processes. The purpose of this thesis is to address fundamental knowledge gaps in understanding plant responses to the interaction between elevated [CO2] with water, nitrogen (N), and leaf developmental programs: (1) determine what is the mechanistic response of maize C4 photosynthesis to a three way interaction between atmospheric [CO2], N availability and drought utilizing the unique capabilities of a Free Air CO2 Enrichment (FACE) field experiment; (2) determine the transcriptional reprogramming of leaf respiration in response to growth in elevated [CO2] and variable N supply using Arabidopsis thaliana and a custom built gas exchange system; (3) determine when in leaf development the transcriptional reprogramming of respiration occurs in response to elevated [CO2] by studying the detailed developmental timelines and molecular events of leaf growth in A. thaliana. The knowledge gaps addressed in this work will help inform crop improvement and models that predict future ecosystem function and global food supply in the face of a changing climate.
- Graduation Semester
- 2012-12
- Permalink
- http://hdl.handle.net/2142/42170
- Copyright and License Information
- Copyright 2012 Robert Markelz
Owning Collections
Graduate Dissertations and Theses at Illinois PRIMARY
Graduate Theses and Dissertations at IllinoisManage Files
Loading…
Edit Collection Membership
Loading…
Edit Metadata
Loading…
Edit Properties
Loading…
Embargoes
Loading…