David M. Rosenthal
PhD. University of Georgia, 2004Physiological Ecology, Global
Change, Invasion Biology,
Ecological Genetics. Porter Hall 309A740 593 0792
Faculty Research Focus Areas
Plant Physiological Ecology
Physiological Plant Ecology (PBIO 3260 / 5260)
Plant Ecology (PBIO 2090)
Biomes (PBIO 2470)
Research Program Summary
The overarching goal in my lab’s research is to assess how plant ecophysiological responses to environmental stressors affect plant performance or fitness. We use observational, experimental and modeling approaches to address key biological questions about ecophysiological, genetic, and evolutionary mechanisms that drive individuals and population level processes. In the past I have addressed questions at scales ranging from biochemical to population and community level processes. Within this framework, my research has evaluated (1) the roles that plant hybridization and evolution play in ecophysiological divergence of drought tolerance traits in sunflowers, (2) the genotypic and phenotypic responses of invasive plant populations to founding events, and (3) how the response of C3 photosynthesis to climate change alters plant productivity and fitness.
Rosenthal DM, Ruiz-Vera UM, Siebers MH, Gray SB, Bernacchi CJ and Donald R. Ort. 2014 Biochemical acclimation, stomatal limitation and precipitationpatterns underlie decreases in photosynthetic stimulation of soybean(Glycine max) at elevated [CO2] and temperatures under fully open airfield conditions. Plant Science DOI : 10.1016/j.plantsci.2014.06.013
Rosenthal DM, Slattery RA, Miller RE, Grennan AK, Gleadow RM, Cavagnaro TR, Fauquet CM, and Donald R. Ort (2012) Cassava about-FACE: greater than expected yield stimulation of cassava (Manihot esculenta) by future CO2 levels. Global Change Biology. 18:2661 - 2675
Rosenthal DM, Locke A, Khozaei M, Raines CA, Long SP and Donald R. Ort (2011) Over-expressing the C3 photosynthesis cycle enzyme Sedoheptulose-1-7 Bisphosphatase improves photosynthetic carbon gain and yield under fully open air CO2 fumigation (FACE). BMC Plant Biology 11:23
Current and Recent Research Projects
Student in the lab are currently investigating the ecophysiological and biochemical limits to photosynthesis of woody and herbaceous species in natural and managed ecosystems. We are also examining the tradeoff between carbon assimilation and hydraulics in forests. A related project is assessing the effect of global change on carbon dynamics in temperate deciduous forest. A central theme is to clearly understand the impacts of global change on plant productivity in natural and managed ecosystems to better predict plant and ecosystem responses to global change. An applied project seeks ways to improve carbon gain in crop plants. Applications to work in our lab are always welcome.