Spring is in the air! It’s time to mow the lawn and breathe in the smell of freshly cut grass. But this pleasant springtime scent may actually be a chemical cry for help. In the latest Reactions episode, we explain how plants communicate, their chemical response to being damaged, and how bugs play a part.

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Credits:
Producer: Elaine Seward
Writer: Kirk Zameiroski
Scientific Consultants: Darcy Gentleman, PhD Ian Baldwin, PhD Simon Gilroy, PhD Rick Karban, PhD
Executive Producer: Hilary Hudson

Music:
Alandra Lightflower Jones – Strike it up (82 style)

Sources:
https://www.wired.com/2013/12/secret-language-of-plants/
https://www.quantamagazine.org/the-secret-language-of-plants-20131216/
http://kottke.org/16/09/the-internet-of-trees-how-trees-talk-to-each-other-underground
http://mentalfloss.com/article/66302/5-ways-plants-communicate
https://www.wired.com/2013/12/secret-language-of-plants/
http://science.sciencemag.org/content/361/6407/1112
https://www.compoundchem.com/2014/04/25/what-causes-the-smell-of-fresh-cut-grass/https://www.compoundchem.com/2014/04/25/what-causes-the-smell-of-fresh-cut-grass/
https://www.mdpi.com/1422-0067/14/9/17781/htm
https://www.omicsonline.org/open-access/the-hydroperoxide-lyase-branch-of-the-oxylipin-pathway-and-green-leaf-volatiles-in-plantinsect-interaction.-2329-9029.1000102.pdf
https://www.degruyter.com/downloadpdf/j/znc.1995.50.issue-7-8/znc-1995-7-801/znc-1995-7-801.pdf
https://link.springer.com/article/10.1007/BF01325231
https://academic.oup.com/chemse/article/30/suppl_1/i268/270427
http://www.plantphysiol.org/content/146/3/818
https://www.annualreviews.org/doi/abs/10.1146/annurev-arplant-042916-041132
https://www.wnycstudios.org/story/from-tree-to-shining-tree
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4483192/
https://books.google.com/books?id=42nOBQAAQBAJ&pg=PA238&lpg=PA238&dq=0.25+ppb+Z-3-hexenal&source=bl&ots=pVrKkqULJl&sig=ACfU3U1WOa51K_ByEGTbqNP90_oiT-hUQQ&hl=en&sa=X&ved=2ahUKEwiY0tWb7rnhAhXD1lkKHQuKDe8Q6AEwA3oECAkQAQ#v=onepage&q=0.25ppbZ-3-hexenal&f=false
https://www.degruyter.com/downloadpdf/j/znc.1995.50.issue-7-8/znc-1995-7-801/znc-1995-7-801.pdf
http://www.plantphysiol.org/content/121/2/325.full
https://www.mdpi.com/1422-0067/14/9/17781/htm
http://science.sciencemag.org/content/329/5995/1075.full

Ever wonder why dogs sniff each others’ butts? Or how Adderall works? Or whether it’s OK to pee in the pool? We’ve got you covered: Reactions a web series about the chemistry that surrounds you every day.

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