Functional divergence of the repressors of photomorphogenesis SPA2 and SPA3 during Arabidopsis seedling deetiolation
Zhen Cao, Vivian Feldmann, Ira Trivedi, Ute Hoecker
This study investigates the functional divergence between SPA2 and SPA3 repressors during Arabidopsis seedling deetiolation, revealing that SPA2's instability under light counterbalances its strong repressor activity.
bioRxiv · May 22, 2026 · PreprintPlant Biology