Captions provided by CCTubes – Captioning the Internet! Potato spindle tuber disease wasn’t a life-or-death situation, but it led to the discovery of viroids: infectious, replicating bits of RNA
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Sources:
https://www.ars.usda.gov/oc/timeline/viroid/
https://agresearchmag.ars.usda.gov/1999/dec/boon
http://www.apsnet.org/publications/apsnetfeatures/Pages/Viroids.aspx
https://www.ncbi.nlm.nih.gov/pubmed/25455904
http://www.els.net/WileyCDA/ElsArticle/refId-a0000434.html
http://journal.frontiersin.org/article/10.3389/fmicb.2016.01552/full
https://medlineplus.gov/ency/article/000216.htm
http://www.sciencedirect.com/science/article/pii/S0168827809000592
https://biologydirect.biomedcentral.com/articles/10.1186/s13062-016-0116-7
http://www.pnas.org/content/86/23/9370.full.pdf
http://exploringorigins.org/ribozymes.html
http://mcmanuslab.ucsf.edu/node/246
https://www.nature.com/nrmicro/journal/v1/n1/full/nrmicro736.html
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