Can I read Air Channels Create a Directional Light Signal to Regulate Hypocotyl Phototropism on EtoBox?
Air Channels Create a Directional Light Signal to Regulate Hypocotyl Phototropism by Ganesh M. Nawkar; Martina Legris; Anupama Goyal; Emanuel Schmid-Siegert; Jérémy Fleury; Antonio Mucciolo; Damien De Bellis; Martine Trevisan; Andreas Schueler; Christian Fankhauser is a Medicine article available to read on EtoBox.
What is Air Channels Create a Directional Light Signal to Regulate Hypocotyl Phototropism about?
In plants, light direction is perceived by the phototropin photoreceptors, which trigger directional growth responses known as phototropism. The formation of a phototropin activation gradient across a photosensitive organ initiates this response. However, the optical tissue properties that functionally contribute to phototropism remain unclear. In this work, we show that intercellular air channels limit light transmittance through various organs in several species. Air channels enhance light scattering in __Arabidopsis__ hypocotyls, thereby steepening the light gradient. This is required for an efficient phototropic response in __Arabidopsis__ and Brassica. We identified an embryonically expressed ABC transporter required for the presence of air channels in seedlings and a structure surrounding them. Our work provides insights into intercellular air space development or maintenance and identifies a mechanism of directional light sensing in plants.
Who reads Air Channels Create a Directional Light Signal to Regulate Hypocotyl Phototropism?
It is typically read by researchers, students, and practitioners in Medicine.
- Author
- Ganesh M. Nawkar; Martina Legris; Anupama Goyal; Emanuel Schmid-Siegert; Jérémy Fleury; Antonio Mucciolo; Damien De Bellis; Martine Trevisan; Andreas Schueler; Christian Fankhauser
- Publisher
- American Association for the Advancement of Science (AAAS)
- Published
- 2023
- Field
- Medicine (Social Sciences)