Morels are delicious mushrooms that are difficult to grow because they are very sensitive to high temperatures. Scientists compared two different morel strains to understand why one variety can tolerate heat better than the other. By studying the genes and proteins expressed at normal and high temperatures, researchers discovered that the heat-tolerant strain activates specific protective mechanisms, particularly through a protein called Rsp5 that helps boost other protective proteins. This research provides valuable information for breeding morel varieties that can survive warmer growing conditions in the age of climate change.