About the Authors
School of Biological Sciences, University of Auckland, Auckland, New Zealand
The New Zealand Institute for Plant & Food Research Limited, Auckland, New Zealand
Centre for Ultrasonic Engineering, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, United Kingdom
The authors have declared that no competing interests exist.
Conceived and designed the experiments: KFL DRG JFCW JCJ SP. Performed the experiments: KFL DRG JFCW JCJ. Analyzed the data: KFL DRG JFCW JCJ JC. Contributed reagents/materials/analysis tools: DRG JFCW JCJ JC. Wrote the paper: KFL DRG JFCW JC SP.