Morphological responses of Arabidopsis thaliana wild type and photoreceptor genotypes to narrowband UV radiation generated by LEDs.

ABSTRACT: Sensing and responding to light signals are critical factors for plant survival. Plants have photoreceptors which coordinate morphological responses through divergent yet overlapping signalling networks. This study aims to identify how Arabidopsis thaliana fine-tunes its architecture in response to different wavelengths of UV radiation. Using narrow wavelength UV-emitting LEDs, in combination with a set of photoreceptor genotypes, enabled investigation of photoreceptor-dependent effects on leaf morphology. Eight Arabidopsis genotypes, including wildtype Col-0, uvr8-6, cry1, cry2, cry1cry2, phot1, phot2 and phot1phot2, were exposed to ~45 μW cm^-2 narrowband UV, with emission peaks at 310, 325, 340 or 365 nm. (a) UV-B wavelengths have a strong inhibitory effect on petiole elongati

SUBMITTER: Cunningham N 

PROVIDER: S-EPMC12631520 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature