Did you know that pine trees in China have a special way to handle the cold winter months? Scientists discovered that these trees have genes that help them sleep through the cold season. Two key genes, called PtTFL2 and PtCOL1, are like the tree's internal clock. They tell the tree when it's time to start getting ready for winter and when to go into a deep sleep.
What's interesting is that the tree doesn't just look at how many hours of daylight it gets. The temperature also plays a big role. As autumn comes and the temperature drops, a gene called PtSVL turns on PtTFL2. This helps the tree enter a light sleep state. Then, PtCOL1 takes over and puts the tree into a deep sleep for the winter.
This research gives us a sneak peek into how trees prepare for cold weather. It shows that trees have their own way of adapting to changes in the environment, just like animals do.
