Chloroplast redox state changes indicate cell-to-cell signalling during the hypersensitive responseLukan, Tjaša (Avtor) Gruden, Kristina (Avtor) Županič, Anže (Avtor) Mahkovec Povalej, Tjaša (Avtor) cell signallingchloroplastsmicroscopyISA-tabpotato virus Yredox responsescell deathspatiotemporal analysisWe performed detailed spatiotemporal analysis of chloroplast redox response to potato virus Y (PVY) infection in resistant Ny‐1-gene-bearing potato and its transgenic counterpart with impaired SA accumulation and compromised resistance. We found that the chloroplasts are highly oxidized in the cells adjacent to the cell death zone at different stages after virus inoculation in both genotypes. This hypothesis is further supported by highly induced formation of stroma filled tubules that extend from chloroplasts (stromules) in the cells adjacent to signalling cells. This dataset s a deposit of all the raw microscopy images of the study, plus the relevant metadata in ISA-tab compliant folder structure. After receiving reviews, we have made an additional experiment using a ROS inhibitor. The raw and processed data for this is in a separate file: _S_chlROS_inhibitor.zipZenodo20212025-10-24 14:40:02Neznano23937sl