Abstract
Transcriptional regulation plays a crucial role in plant adaptation to diverse environments. Several transcription factors (TFs), the so-called master switch TFs or hub TFs, regulate various genes critical for adaptation to different stresses. STOP1 (SENSITIVE TO PROTON RHIZOTOXICITY 1), a zinc-finger TF of Arabidopsis (Arabidopsis thaliana), is one such master/hub TF that transcriptionally regulates multiple stress tolerance (Sadhukhan et al., 2021). STOP1 plays a critical role in tolerance to acid soil syndrome (i.e., H+ and Al3+ tolerance) (Iuchi et al., 2007) and hypoxia tolerance (Enomoto et al., 2019), and negatively regulates drought tolerance (Sadhukhan et al., 2019).
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