Portland State University. Department of Biology
Todd N. Rosenstiel
Date of Award
Master of Science (M.S.) in Biology
1 online resource (v, 93 pages)
Bamboo -- Effect of atmospheric carbon dioxide on, Volatile organic compounds -- Measurement -- Environmental aspects, Isoprene -- Synthesis -- Effect of environment on
Plants emit a diverse range of biogenic volatile organic compounds (BVOCs) into the atmosphere, of which isoprene is the most abundantly emitted. Isoprene significantly affects biological and atmospheric processes, but the range of isoprene and BVOCs present in bamboos has not been well characterized. In this thesis I explore the range of isoprene emission found in bamboos and relate it to plant morphological and physiological characteristics. In addition, I measure and relate the entire suite of BVOCs present in the bamboos to their fundamental isoprene emission rate.
Interspecific variation in isoprene emission documented in a comprehensive survey of bamboos. Two groups of bamboo species were measured in the greenhouse and the field. Elevated photosynthetic rate was significantly correlated with isoprene emission. In the field, dark respiration rate was highest in bamboos that made the least amount of isoprene. The total BVOC suite was significantly influenced by whether or not leaf-level isoprene emission was present. I conclude that bamboos vary with regard to physiology, morphology, and total BVOC suite and that isoprene emission is correlated with these changes, and introduce the bamboos as a novel system for studying the impacts of isoprene emission.
Melnychenko, Andrea Natalie, "Interspecific variation in leaf-level biogenic emissions of the Bambuseae" (2013). Dissertations and Theses. Paper 1031.