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Der Stofftransport in der Pflanze / Translocation in Plants by Walter Schumacher (auth.), Hermann Fischer, R. J. Helder,

By Walter Schumacher (auth.), Hermann Fischer, R. J. Helder, Walter Schumacher, Johannes Willenbrink (eds.)

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Additional info for Der Stofftransport in der Pflanze / Translocation in Plants

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Beih. Bot. Zbl. 30, 1 (1913). - STAVERMAN, A. : The physics of the phenomena of permeability. Acta physiol. pharmacol. neerl. 3, 522 (1954). VRIES, H. DE: tJber die Bedeutung der Zirkulation und der Rotation des Protoplasma fur den Stofftransport in der Pflanze. Bot. Ztg 43,17 (1885). : The uptake of cations by Vallisneria leaves. Acta bot. neer!. 10,341 (1961). Transport of substances through the tentacles of Drosera capensis. By R. J. Helder. With 4 figures. Introduction. The various species of the genus Drosera have always attracted the attention of both the botanist and the layman.

Translocation of chloride through bundle Vallisneria spiralis. Only the absorbing part was pass through the bundle tissue, which connected part. Figures refer to sets of 8 leaf Treatmen! ) in leaf segments of allowed to absorb chloride for 24 hours. The chloride had to the two parts of the leaf segment, in order to reach the free segments. ; , : . 8mm 16mm Treatment Fig. 6. ) in leaf segments of Vallisneria spiralis. The absorbing part and the free part of the leaf segments were only connected by two bridges of parenchymatous tissue.

Control + azide Treafment Fig. 12. The effect of azide on absorption and distribution of chloride in leaf segments of Val/isneria spira/is with bundle bridges. All segments were treated in such a way that the chloride ions had to pass through a bundle bridge in order to reach the free part of the segments. Azide was applied to either the absorbing part, or bundle bridge or the first zone of the free part. Figures refer to sets of 8 leaf segments. ) way. For this reason experiments were carried out in which the absorbing part was kept under conditions conducive to rapid absorption; and one zone of the free part was allowed to accumulate ions supplied by the absorbing part freely while the other zone, lying between the two zones mentioned, was subjected to a treatment by a suitable inhibitor.

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