About the Authors
Departments of Pathology and Microbiology and Immunology, Northwestern University, Chicago, Illinois, United States of America
Department of Plant Pathology, The Ohio State University, Ohio Agricultural Research and Development Center, Wooster, Ohio, United States of America
The authors have declared that no competing interests exist.
SB, NLH, SK, and KH conceived and designed the experiments. SB, NLH, KL, JW, TDK, and CY performed the experiments. SB, NLH, KL, JW, TDK, CY, SK, and KH analyzed the data. SB, NLH, SK, and KH wrote the paper.