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Figure 10 | BMC Plant Biology

Figure 10

From: The mechanism of pollination drop withdrawal in Ginkgo biloba L.

Figure 10

Diagrammatic illustration of PD withdrawal. (A) PD is produced constantly by nucellar tip cells and reaches its maximum volume at pollination. (B) Ginkgo biloba pollen grains entered the PD, and the nucellar tip cells terminated secretion. (C) Pollen grains entered the pollen chamber along with PD withdrawal. I, integument; Mc, micropyle canal; Mi, micropyle; Nu, nucellus; P, pollen grains; Pc, pollen chamber; PD, pollination drop.

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