Low pH-induced cell wall disturbances in Arabidopsis thaliana roots lead to a pattern-specific programmed cell death in the different root zones and arrested elongation in late elongation zone

•Low pH stress triggers cell wall disturbances in root cells.•Cell wall disturbances lead to cell death or arrest in elongation in distinct root zones.•Cell death obeys to a repetitive pattern and is coordinated through a programmed cell death mechanism.