Science, Space and Technology News 2024
Researchers from Tel Aviv University and the University of Colorado have demonstrated that sunflowers, when planted densely, engage in random movements to avoid shading each other, effectively maximizing their collective photosynthesis. This finding provides crucial insights into plant behavior and circumnutation.
A study reveals that densely planted sunflowers use random movements to ensure optimal sunlight capture, highlighting circumnutation’s role in plant growth and mutual support. A team of researchers from Tel Aviv University has discovered that plants growing in dense environments can optimize sunlight capture and minimize mutual shading through inherent random movements, known as circumnutations. This research, conducted in collaboration with the University of Colorado, Boulder, reveals the importance of these movements in enhancingon a collective level, solving a long-standing scientific puzzle dating back to Darwin’s initial observations.
“If they sense the shadow of a building – they usually don’t change their growth direction, because they “know” that will have no effect. But if they sense the shadow of a plant, they will grow in a direction away from the shadow.”, the researchers investigated how sunflowers “know” to grow in an optimal way and analyzed the growth dynamics of the sunflowers in the laboratory, where they exhibit a zig-zag pattern. Prof.
Reference: “Noisy Circumnutations Facilitate Self-Organized Shade Avoidance in Sunflowers” by Chantal Nguyen, Imri Dromi, Ahron Kempinski, Gabriella E. C. Gall, Orit Peleg and Yasmine Meroz, 15 August 2024,What’s Happening to Jupiter’s Great Red Spot? The Solar System’s Largest Storm Could Finally DisappearScientists Have Discovered Strange DNA in Our Brains – and It Could Be Shortening Our Lives
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