While in the Barak Lab, Lingyun investigated the molecular mechanisms that Salmonela enterica utilizes during the life cycle of this organism on plants. More specifically, she studied the identification and characterization of function unknown (FUN) genes of S. enterica with the role in plant colonization. She also studied the metabolic requirements of S. enterica to persist in the plant environment and whether/how the metabolic profiling of S. enterica in plant root exudates is different from other closely related Enterobacteria such as Escherichia coli. Through better understanding of the basic biology of S. enterica in/on plants, the ultimate goal of Lingyun’s research was to provide better sanitation strategy for pathogen reduction, but also to provide interesting ecological comparisons between plant-associated bacteria and human pathogens, which are helpful to study other closely related enteric pathogens such as pathogenic E. coli.
Ph.D. in Plant Pathology, University of Wisconsin-Madison, 2013.
MS in Plant Pathology, China Agricultural University, 2008
BA in Biological Science, Hebei University, 2003
Hao, L. H. Andrews-Polymenis, M. McClelland, D. K. Willis, and J. D. Barak. 2012. Salmonella enterica requires siderophore biosynthesis to colonize plants. Applied Environmental Microbiology. 78: 4561-4570. Link
Jeri D. Barak, Kramer, L., and Hao, L. 2011. Plant cultivar alters Salmonella enterica colonization of tomato and Type 1 trichomes are preferential colonization sites. Applied Environmental Microbiology. 77: 498-504. Link