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Accumulation of O2–, H2O2, and MDA in the anthers of U87B1-706A and 706B during various developmental stages. Td, tetrad stage; Eun, early uninucleate stage; Lun, late uninucleate stage; Bn, binucleate stage; and Tn, trinucleate stage. (A) O2– contents; (B) H2O2 contents; (C) MDA contents. Students’ t test * p < 0.05, ** p < 0.01. Each value represents the mean ± SD (n = 3).
