WebOsmotic Pressure of Cell Sap and Its Possible Relation to Winter Killing and Leaf Fall. Floyd W. Gail WebSolute concentration gradients were studied in Ricinus communis L. stems using refractometry linked with cryoscopic measurements of osmotic pressure. Techniques were developed to study the local composition of sieve-tube sap, effectively isolating bark segments by ring-massage or massage-girdling.
Druckstromtheorie - Kompaktlexikon der Biologie - Spektrum.de
WebPfeiffer, M. Die Verteilung der osmotischen Werte im Baum im Hinblick auf die Münchsche Druckstromtheorie. Flora132: 1–47. 1937. Google Scholar Phillis, E. and Mason, T. G. The polar distribution of sugar in the foliage leaf. Ann. Bot.47: 585–634. 1933. CAS Google Scholar Rabideau, G. S. and Burr, G. O. The use of the C 13 isotope as a ... Web1. The structure and development of sieve tubes seem causally related to normal conduction in plants, to the movement of certain viruses, and to the formation of the union in grafts and wounds. 2. Stages in the ontogeny of phloem elements in tobacco differ little from those described in potato. Primary sieve tubes contain slime bodies, nuclei, plastids, and the … bohrs atom pictures
Druckenergie – Wikipedia
Webjeweils die folgenden Reaktionen bzw. Prozesse ablaufen: 1. radikalische Polymerisation der Ligninmonomere; 2. Malatspeicherung bei CAM-Pflanzen; 3. Freisetzung von … WebDruckstromtheorie Modellversuch: Zelle A enthält eine 10%ige Zuckerlösung, Zelle B … WebMartin Pfeiffer Die Verteilung der osmotischen Werte im Baum im Hinblick auf die … bohrschablone aluprofil