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. 2013 Oct 5;64(16):5195–5205. doi: 10.1093/jxb/ert311

Fig. 2.

Fig. 2.

Bursting of pollen cells 1–2min after flooding pollen tubes growing in agar with Hg solution (100 µM). Mahonia (bar=20 µm): (A) +Hg prior to bursting; (B) +Hg, top cell bursts ejecting a large plume of cytoplasm from a small area of tip apex in 0.5 s. (arrow). Lilium (bar=30 µm): (C) +Hg, showing two cells prior to bursting (arrows). (D) +Hg, showing two tip plumes of cytoplasm ejected in <1 s. Arabidopsis (bar=100 µm): (E) +Hg. prior to bursting showing smooth intact tips (arrow and inset ×2); (F) +Hg, bursting cells after 1–2min showing tip plumes (arrow and inset ×2).