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. 2014 Jun 13;9(6):e99639. doi: 10.1371/journal.pone.0099639

Figure 6. Degenerate and abortive ovules in self-pollinated ovaries at various stages.

Figure 6

(A). Two sets of egg apparatus in embryo sacs 72 h after SP. (B–C). Abortive ovules with shriveling embryo sacs but normal development of the integument 8 and 10 days after SP, respectively. (D–H). Embryo sacs with an abnormal shape and degenerated egg apparatus 16, 20, 25, 30, and 35 days after SP, respectively. (I–L). Abortive ovules with dead whole tissues 40, 45, 50, and 170 days after SP, respectively. Abbreviations: ao, abortive ovule; do, degenerate ovule. Bars: A–E, G = 100 µm; F, H–J = 200 µm; K = 1000 µm; L = 500 µm.