Figure 3From: DNA replication arrest leads to enhanced homologous recombination and cell death in meristems of rice OsRecQl4 mutantsIncreased frequency of cell death induced in root tips of osrecql4 mutants upon aphidicolin treatment. Propidium iodide (PI) staining indicates dead cells. (A) WT and osrecql4-2 mutant plants treated with 40 mg/L aphidicolin for 24 h. An increased number of cell death signals was observed in the root meristem of osrecql4-2 under the fluorescence microscope. Scale bar, 100 μm. (B) Summary of number of PI signals. 24 independent roots from osrecql4-2 and WT plants were investigated. The x-axis indicates number of cell death spots per root. SD, standard deviation.Back to article page