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Two-day-old protonemata of Funaria hygrometrica Hedw. growing in vitro were treated with 4 μM Pb (given as PbCl2) for 48 h. After this time chloroplasts of apical cell were distributed in different way than in control. In the middle part of the cell they formed one line while in the top one, usually swollen, they were crowded and formed irregular group. The reasons of such chloroplast distribution...
Two-days-old protonemata of Funaria hygrometrica Hedw. growing in in vitro conditions were treated with 4 μM PbCl2 for 48 h. After this time grey or brown colour thickenings of the cell wall appeared in protonemata cells. They were then localized in tip parts of apical cells. Electron microscopical (TEM) observations showed that the thickenings were structurally connected with the wall and sometimes...
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