Spatial Coordination between Leaf Gradient and Temperature Response in Barley
Authors: Fernandez, E. C., Tu, G., Dai, W., Yang, S., Liu, Z., Grzybowski, M., Liang, Z.
Date: 2025-06-27 · Version: 1
DOI: 10.1101/2025.06.24.661333 Category: Plant Biology
Model Organism: Hordeum vulgare
▶ AI Summary
Using chlorophyll fluorescence imaging, the authors mapped non‑photochemical quenching (NPQ) kinetics along barley leaf gradients under heat stress, uncovering spatially distinct physiological responses that differ from SPAD measurements. Genome‑wide association studies linked these traits to specific SNPs, especially in HORVU.MOREX.r3.3HG0262630, and transcriptomic profiling revealed both conserved and region‑specific heat‑responsive pathways, highlighting targets for improving heat tolerance in cereals.
heat stress chlorophyll fluorescence imaging NPQ kinetics genome‑wide association study spatial leaf heterogeneity