About the Authors

Michelle L. Flenniken

michelle.flenniken@montana.edu (MLF); raul.andino@ucsf.edu (RA)

Affiliations Department of Microbiology and Immunology, University of California San Francisco, San Francisco, California, United States of America, Department of Plant Sciences and Plant Pathology, Montana State University, Bozeman, Montana, United States of America

Raul Andino

michelle.flenniken@montana.edu (MLF); raul.andino@ucsf.edu (RA)

Affiliation Department of Microbiology and Immunology, University of California San Francisco, San Francisco, California, United States of America

Competing Interests

This study was partly funded by a Honey Bee Biology Postdoctoral Fellowship co-sponsored in part by Häagen Dazs. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MLF RA. Performed the experiments: MLF. Analyzed the data: MLF. Contributed reagents/materials/analysis tools: MLF RA. Wrote the manuscript: MLF RA.