Acknowledgements
We thank Amanda Cardoso who conducted a preliminary experiment that
revealed a p-type ABA response in Umbellularia ; Mike Mickelbart
and Gyeong-Mee Yoon for helpful comments on experimental design and
text; and John Ross, without whose mentorship and advice on hormone
analysis, this study would not have been possible. We acknowledge the
use of the Metabolite Profiling Facility of the Bindley Bioscience
Center, a core facility of the NIH-funded Indiana Clinical and
Translational Sciences Institute for quantifying hormone levels. Support
for this project came from the USDA National Institute of Food and
Agriculture Hatch project 10104908 and the National Science Foundation
grant IOS-2140119.