Do give up too fast
The persistent [Ca2+]str increase is caused by HL stress, accompanied by photoinhibition and 1O2 accumulation
Part of a biphasic Ca2+ response, the subsequent persistent [Ca2+]str increase occurred together with hallmarks of HL stress, as the decrease of chlorophyll autofluorescence and Fv/Fm (Figures 4C and S7) indicated strong damage to the photosystems.13 The persistent [Ca2+]str increase was light dose dependent, occurring when light intensity exceeded 1,100 μmol photons m⁻2 s⁻1 (Figure S5), and was robustly triggered at 2,000 μmol photons m⁻2 s⁻1 (Figure 3; Table S1), typical of outdoor sunlight. Beyond 2,000 μmol photons m⁻2 s⁻1, natural lensing conditions, such as water droplets, should be considered. While the effect of focused natural light on plant physiology is rarely studied,4 focused sunlight spots are common in nature, e.g., on days with intermittent rain and sunshine (Figures 1A and 1B). We simulated this by focusing microscope light through a glass bead to trigger a persistent [Ca2+]str increase (Figure 1C). Light focused through water droplets could create a “multiple dot effect,” mimicking localized hypersensitive response-like cell death. In contrast, exposing a large area to white light likely triggers a more uniform, systemic stress response involving broader signaling and defense mechanisms. This suggests that localized and widespread light stress may engage distinct regulatory pathways. Specialized acclimation signaling, such as a stromal Ca2+ response, may be crucial to prevent sunburn and cell death,71,72 warranting further study.
I think a study has more worth than a blog post
Even says its natural to have fucked up leafs outside as you confidently say you never saw and dont beleve.
But as i said i am arguing with a person zhat doesnt know its cloudy when it rains and thinks you can start a fire with water is above it
And why do you post a google post about watering? Thats a different subject watering is water on soil not water on leafs