Rising carbon dioxide level disrupts insects' ability to choose optimal egg-laying sites
Peer-Reviewed Publication
Updates every hour. Last Updated: 28-Aug-2025 20:11 ET (29-Aug-2025 00:11 GMT/UTC)
This study reveals that female Helicoverpa armigera moths utilize plant-emitted CO2 as a key cue for egg-laying, preferring young leaves with higher CO2 emissions to enhance offspring survival. However, the increase of CO2 concentration in the atmosphere disrupts this oviposition strategy. Three gustatory receptors (HarmGR1, HarmGR2, and HarmGR3) were essential for CO2 detection in H. armigera. Disrupting any of these receptors impaired CO2 sensing and oviposition behavior. These findings highlight how climate change may alter insect reproduction and crop pest dynamics.
Solid-oxide fuel cells are a promising material for future green energy infrastructure due to their high efficiency and long lifespan. However, they require operation at high temperatures of around 700-800℃. Now researchers at Kyushu University have succeeded in developing a new SOFC material with an efficient operating temperature of 300℃. The team expects that their new findings will greatly accelerate the practical application of green energy devices.
Recently, scientists in China experimentally realized a class of three-dimensional spatiotemporal wavepackets with spherical harmonic symmetry. This achievement is made by exploiting the mathematical analogy between the paraxial wave equation for spatiotemporal optical fields and the potential-free Schrödinger equation in quantum mechanics, utilizing their self-developed spatiotemporal light field modulation apparatus. Such spherically symmetric spatiotemporal light fields show promising potential for applications in photonic quantum emulator and particle manipulation, among other fields.
It sounds like science fiction: a spacecraft, no heavier than a paperclip, propelled by a laser beam and hurtling through space at the speed of light toward a black hole, on a mission to probe the very fabric of space and time and test the laws of physics. But to astrophysicist and black hole expert Cosimo Bambi, the idea is not so far-fetched.
Reporting in the Cell Press journal iScience, Bambi outlines the blueprint for turning this interstellar voyage to a black hole into a reality. If successful, this century-long mission could return data from nearby black holes that completely alter our understanding of general relativity and the rules of physics.