https://phys.org/news/2018-11-hot-temperatures-trigger-rna-response.html

Because plants are not able to regulate their own temperatures, as humans do, or move from the heat source, this process may be one of the ways plants cope under hot temperatures and drought conditions, said Sarah M. Assmann, Waller Professor of Biology, Eberly College of Science.

While more studies would be needed, this study may serve as an important first step to help farmers produce more heat and drought-resistant crops, according to the researchers, who announced their findings today (Nov. 5) in the Proceedings of the National Academy of Sciences.