Figure 2.

PD withdrawal process. (A–E) Nonpollinated PD withdraws slowly; (F–J) pollinated PD withdraws rapidly; (K) comparison of the withdrawal rates of non-pollinated and pollinated PDs. Mi, micropyle; O, ovule; P, pollen grains; PD, pollination drop. Scale bars: A–J = 200 μm.

Jin et al. BMC Plant Biology 2012 12:59   doi:10.1186/1471-2229-12-59
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