Transcriptional control by auxins in plants; plant RNA polymerases.
Control of gene expression by plant growth regulators.
Professor Emeritus of Child Health
Professor Emeritus of Biochemistry
Biochemical and physiological function of trace elements. Metabolism and bioavailability of trace elements.
Nitrogen and nitric oxide metabolism in plants.
Director Emeritus, Interdisciplinary Plant Group
Thomas Jefferson Fellow
Metabolism, signal transduction, protein kinases and phosphorylated proteins in plants.