Why do leaves change color in the fall?

#065 Rebroadcast

It's Fall! You know why they call Fall Fall? Well because the leaves fall. But before that, the leaves change color. Why do they do that? How? Is there any sort of function to it? Do the different colors mean anything? Let's dive into this overdue, colorful topic.

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References from this episode

1. http://www.compoundchem.com/2014/09/11/autumnleaves/
2. https://www.acs.org/content/acs/en/pressroom/reactions/videos/2014/why-do-leaves-change-color.html
3. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5465813/
4. https://www.nature.com/news/2007/071029/full/news.2007.202.html
5. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC125091/
6. https://harvardforest.fas.harvard.edu/sites/default/files/leaves/2002_11_leaf_article.pdf
7. https://biology.appstate.edu/fall-colors/hidden-colors-leaves-what-are-functions-those-yellow-and-orange-pigments-we-see-fall
8. http://www.appstate.edu/~neufeldhs/publications/hugh2005.pdf

 

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