Physiologia PlantarumVolume 3, Issue 1 p. 45-57 The Permeability of Nitella Cells to Rapidly Penetrating Non-Electrolytes Runar Collander, Runar Collander Botanical Institute, University of HelsingforsSearch for more papers by this author Runar Collander, Runar Collander Botanical Institute, University of HelsingforsSearch for more papers by this author First published: January 1950 https://doi.org/10.1111/j.1399-3054.1950.tb07491.xCitations: 22AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat References Bochsler, A.: Die Wasserpermeabililät des Protoplasmas auf Grund des Fickschen Diffusionsgesetzes. Ber. Schweizer Bot. Ges. 58: 73. 1948. CASGoogle Scholar Collander, R.: Die Verteilung organischer Verbindungen zwischen Äther und Wasser. Acta Chemica Scand. 3: 717. 1949. 10.3891/acta.chem.scand.03-0717 CASWeb of Science®Google Scholar Collander, R. The permeability of plant protoplasts to small molecules. Physiol. Plantar. 2: 300. 1949. 10.1111/j.1399-3054.1949.tb07655.x Web of Science®Google Scholar Collander, R. and Bärlund, H.: Permeabilitätsstudien an Chara ceratopbylla II. Acta Bot. Fennica 11: 1. 1933. Google Scholar Frey-Wyssling, A.: Zur Wasserpermeabitität des Protoplasmas. . Experientia 2: 132. 1946. 10.1007/BF02163917 CASPubMedWeb of Science®Google Scholar Hotdheide, W.: Über einen eigenartigen Fall von Plasmoptyse. Biol. Zentralbl. 50: 705. 1930. Google Scholar Hotdheide, W. Uber Plasmoptyse bei Hydrodictyon utriculatum. Planta (Berl.) 15: 244. 1931. 10.1007/BF01916228 Google Scholar Overton, E.: Ueber die allgemeinen osmotischen Eigenschaften der Zelle. Viertel-jahrsschr. d. Naturforsch. Ges. in Zurich 44: 88. 1899. Google Scholar Saubert, G. G. P.: The influence of alcohols on the protoplasmic membrane and colloid models. Rec. Trav. Bot. Néerl. 34: 709. 1937. Google Scholar Wartiovaara, V.: The permeability of Tolypellopsis cells for heavy water and methyl alcohol. Acta Bot. Fenn. 34: 709. 1944. Google Scholar Wartiovaara, V. The permeability of the plasma membranes of Nitella to normal primary alcohols at low and intermediate temperatures. Physiol. Ptantar. 2: 184. 1949. 10.1111/j.1399-3054.1949.tb07478.x Web of Science®Google Scholar Zehetner, H.: Untersuchungen uber die Alkoholpermeabilität des Protoplasmas. Jahrb. wiss. Bot. 80: 505. 1943. Google Scholar Citing Literature Volume3, Issue1January 1950Pages 45-57 ReferencesRelatedInformation

For about a hundred years it has been known that plants do not absorb the different constituents of a nutrient solution in the same proportions as they occur in the solution; some salts or ions are taken up in relatively greater amounts than others. The mechanism of this salt selection exerted by the roots is, however, still quite obscure. It seems that one of the first steps tow^ards an understanding of this important process should be a careful study of its results. A close examination of the proportions in which several kinds of ions are absorbed from nutrient solutions of known composition by different plant species should serve as a starting point for attempts to elucidate this process. This information, however, is still lacking. We have known, until now, very little about the proportions in which different ions are absorbed from nutrient solutions, of easily determinable composition, which contain the ions to be investigated in equivalent amounts. It is the purpose of the present investigation to present such experimental data in suitable form to serve as the basis for a discussion of the nature of the selective activity of the roots of higher plants. To this end plants of a number of species have been cultivated in nutrient solutions containing several cations in equivalent amounts, after which the cation composition of the plants was determined by the method of quantitative spectral analysis. The stuLdy was thus limited to cations. Since they are less engaged in the metabolism of the plants the cations seem, in fact, more suitable for such studies than miost anions. A preliminary account of some results of this investigation has already been published (7). Materials and methods