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zakruti.com » Knowledge, science, education » TED-Ed
How plants tell time - Dasha Savage

How plants tell time - Dasha Savage

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Rating: 4.0; Vote: 1
Morning glories unfurl their petals like clockwork in the early morning. A closing white waterlily signals that its late afternoon. And moon flowers, as their name suggests, only bloom under the night sky. What gives plants this innate sense of time? Dasha Savage investigates how circadian rhythms act as an internal timekeeper for flora and fauna alike. Lesson by Dasha Savage
Date: 2020-08-22

Comments and reviews: 6


The creators should correct phytochromes to photoreceptors which is a group phytochromes belong to. Other photoreceptors are also involved and contribute to circadian rhythms. It would also be better to emphasize that majority of plants flower in terms of the amount of light they receive, not exactly temperature, this is the reason why there are plants which flower in certain seasons which have differed day and night lengths. :D
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Some of these processes are purely chemical. For example, the perception of wavelength composition; there's one single molecule with two forms, each stabilized by a different wavelength (both in the red part of the spectrum) and each interacting with stuff in a different way.
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The narrator speaks more faintly than previous animations, it's sound very annoying. please talk a bit louder next time while muffling that annoying 'motor' like sound.
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I don't trust such information, plants react spontaneously to the enviroment, such thing as time is an ilusion of the mind. The only time that exists is the NOW.
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Not 'many' organism as you say in your video but ALL the organism have this ability. Everything acts and reacts according to Time, one example is the seasons.
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This is some crazy stuff. The fact that we know this is really cool, not to mention the fact that flippin' plants, PLANTS PEOPLE, can do this.
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