Venus Flytraps Store Short-Term “Memories”
Curiosity Weekly
Warner Bros. Discovery
4.6 • 964 Ratings
🗓️ 23 November 2020
⏱️ 13 minutes
🧾️ Download transcript
Summary
Learn about how scientists discovered that Venus flytraps can store short-term “memories,” why you shouldn't use real-time updates when waiting for the bus, and how epigenetics can make your DNA change within your lifetime.
Venus flytraps store short-term ‘memories’ in their hairs by Grant Currin
- Segarra, C. (2020, October 14). How Venus flytraps store short-term ‘memories’ of prey. Science News. https://www.sciencenews.org/article/how-venus-flytraps-store-short-term-memories-prey
- Suda, H., Mano, H., Toyota, M., Fukushima, K., Mimura, T., Tsutsui, I., Hedrich, R., Tamada, Y., & Hasebe, M. (2020). Calcium dynamics during trap closure visualized in transgenic Venus flytrap. Nature Plants, 6(10), 1219–1224. https://doi.org/10.1038/s41477-020-00773
- Platt, J. R. (2015, January 22). Venus Flytraps Risk Extinction in the Wild at the Hands of Poachers. Scientific American Blog Network. https://blogs.scientificamerican.com/extinction-countdown/venus-flytraps-risk-extinction-in-the-wild-at-the-hands-of-poachers/
Waiting for the bus? Science says you shouldn't use real-time updates by Kelsey Donk
- Want to wait less at the bus stop? Beware real-time updates. (2020). EurekAlert! https://www.eurekalert.org/pub_releases/2020-10/osu-wtw101220.php
- Liu, L., & Miller, H. J. (2020). Does real-time transit information reduce waiting time? An empirical analysis. Transportation Research Part A: Policy and Practice, 141, 167–179. https://doi.org/10.1016/j.tra.2020.09.014
With Epigenetics, Your DNA Can Change Within Your Lifetime by Ashley Hamer
- Cath Ennis. (2014, April 25). Epigenetics 101: a beginner’s guide to explaining everything | Cath Ennis. The Guardian; The Guardian. https://www.theguardian.com/science/occams-corner/2014/apr/25/epigenetics-beginners-guide-to-everything
- Rönn, T., Volkov, P., Davegårdh, C., Dayeh, T., Hall, E., Olsson, A. H., Nilsson, E., Tornberg, Å., Dekker Nitert, M., Eriksson, K.-F., Jones, H. A., Groop, L., & Ling, C. (2013). A Six Months Exercise Intervention Influences the Genome-wide DNA Methylation Pattern in Human Adipose Tissue. PLoS Genetics, 9(6), e1003572. https://doi.org/10.1371/journal.pgen.1003572
- Singh, S., & Li, S. S.-L. (2012). Epigenetic Effects of Environmental Chemicals Bisphenol A and Phthalates. International Journal of Molecular Sciences, 13(8), 10143–10153. https://doi.org/10.3390/ijms130810143
- Suderman, M., Borghol, N., Pappas, J. J., Pinto Pereira, S. M., Pembrey, M., Hertzman, C., Power, C., & Szyf, M. (2014). Childhood abuse is associated with methylation of multiple loci in adult DNA. BMC Medical Genomics, 7(1). https://doi.org/10.1186/1755-8794-7-13
- Eriksen, K. G., Radford, E. J., Silver, M. J., Fulford, A. J. C., Wegmüller, R., & Prentice, A. M. (2017). Influence of intergenerational in utero parental energy and nutrient restriction on offspring growth in rural Gambia. The FASEB Journal, 31(11), 4928–4934. https://doi.org/10.1096/fj.201700017r
- Kaati, G., Bygren, L., & Edvinsson, S. (2002). Cardiovascular and diabetes mortality determined by nutrition during parents’ and grandparents’ slow growth period. European Journal of Human Genetics, 10(11), 682–688. https://doi.org/10.1038/sj.ejhg.5200859
- Berezow, A. (2014, April 16). End the Hype over Epigenetics & Lamarckian Evolution. Big Think; Big Think. https://bigthink.com/think-tank/end-the-hype-over-epigenetics-lamarckian-evolution
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Transcript
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| 0:00.0 | Hi, you're about to get smarter in just a few minutes with Curiosity Daily from Curiosity.com. |
| 0:07.0 | I'm Ashley Hamer. |
| 0:08.0 | And I'm Natalia Reagan. |
| 0:10.0 | Today you learn about how scientists discover that Venus flytraps can store short-term memories, |
| 0:14.4 | while you shouldn't use real-time updates from waiting for the bus, |
| 0:17.6 | and how epigenetics can make your DNA function differently within your own lifetime. |
| 0:22.1 | Let's satisfy some curiosity. |
| 0:24.0 | If you're in the market for a new favorite plant, |
| 0:27.0 | let me present the Venus Fly Trap for your consideration. |
| 0:31.0 | This charismatic carnivore has it all, an appetite for insects and |
| 0:34.9 | spiders, super sensitive trigger hairs, and a trap that can snap shut in a tenth of a |
| 0:40.4 | second. If you aren't sold, there's one more standout quality. The Venus fly trap |
| 0:45.1 | doesn't have a brain, sorry plants, but it does have a short-term memory and |
| 0:50.0 | researchers have finally figured out how it works. |
| 0:53.0 | See, those sensitive hairs are what trigger the plant to close its trap. |
| 0:57.0 | But it wouldn't be smart for a Venus fly trap to chomp down every time one of its trigger hairs is activated. There would just be too many |
| 1:04.3 | false alarms. That's why the plant has evolved a policy. It only closes if its system of |
| 1:10.7 | trigger hairs is tripped twice in 30 seconds. |
| 1:13.4 | The first signal starts the clock and the second signal, |
| 1:16.7 | if it comes, tells the jaws to snap. |
| 1:19.4 | Researchers have been trying to get to the bottom of this mechanism for a while, |
| 1:23.3 | but the plant wasn't ready to give up its secrets. The recent breakthrough came after a team |
... |
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