1907
DOI: 10.5962/bhl.title.13150
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Untersuchungen über die Entstehung der Schlafbewegungen der Blattorgane

Abstract: Hinweis auf den Stand unserer Kenntnisse.-Zweck und Aufgabe der erneuten Untersuchungen. Kapitel II. Methodisches. 8 I. Das Anbringen des Schreibbebeis und das Bandagieren der Pflanzen 264 Hinweis auf die Methodik des Registrierens.-Der Schreibhebel, seine Montierung und seine Verbindung mit der Pflanze.-Registrierung der Bewegung der Piederblättcben von Albizzia usw. vermittelst zweier durch Scharnier verbundener Glimmerblättchen.-Befestigung der Versuchsobjekte. § 2. Die Registrierapparate 271 Die angewandte… Show more

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Cited by 17 publications
(10 citation statements)
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“…Generally, De Mairan (1729) is acknowledged to be the discoverer of circadian rhythms in plants with his experiments showing leaflet movements of M. pudica in continuous darkness. Much later, Wilhelm Pfeffer (1907Pfeffer ( , 1915 and his followers further elaborated circadian rhythmicity in plants looking at leaflet movements of beans. However, the cell physiological mechanism of pulvinar turgor movements was mainly worked out using the legume trees Albizzia julibrissin and particularly Samanea saman, where the responses to blue and red light and the involvement of the phytochrome system were unravelled (Hillman and Koukari 1967;Satter et al 1970aSatter et al , b, 1977, and where especially Ruth Satter and her associates in a life's work over several decades with a remarkable series of publications worked out the regulation of the opposing reactions of dorsal and ventral pulvinus cells, in opening and closing movements and the involvement of the essential osmotica, mainly potassium but also chloride, malate and sucrose Satter et al , 1974aRacusen and Satter 1975;Coté et al 1989;Zucker Lowen and Satter 1989; for reviews see Higinbotham 1979, Lüttge 2003a).…”
Section: Nyctinastic Movement Of Leafletsmentioning
confidence: 98%
“…Generally, De Mairan (1729) is acknowledged to be the discoverer of circadian rhythms in plants with his experiments showing leaflet movements of M. pudica in continuous darkness. Much later, Wilhelm Pfeffer (1907Pfeffer ( , 1915 and his followers further elaborated circadian rhythmicity in plants looking at leaflet movements of beans. However, the cell physiological mechanism of pulvinar turgor movements was mainly worked out using the legume trees Albizzia julibrissin and particularly Samanea saman, where the responses to blue and red light and the involvement of the phytochrome system were unravelled (Hillman and Koukari 1967;Satter et al 1970aSatter et al , b, 1977, and where especially Ruth Satter and her associates in a life's work over several decades with a remarkable series of publications worked out the regulation of the opposing reactions of dorsal and ventral pulvinus cells, in opening and closing movements and the involvement of the essential osmotica, mainly potassium but also chloride, malate and sucrose Satter et al , 1974aRacusen and Satter 1975;Coté et al 1989;Zucker Lowen and Satter 1989; for reviews see Higinbotham 1979, Lüttge 2003a).…”
Section: Nyctinastic Movement Of Leafletsmentioning
confidence: 98%
“…Only a few facts concerning previous lines of investigation will be mentioned briefly. That the photeolic movements are particularly influenced by variations in the incident illumination was recognized by De Candolle (1832) and Pfeffer (1906), who were able to modify greatly the period of rhythm by employing artificial light. The sudden responses to mechanical shock were studied by many early investigators (ef.…”
Section: Leaf-lviove:ments Of Mimosa Pudica In Relationmentioning
confidence: 95%
“…The sudden responses to mechanical shock were studied by many early investigators (ef. Pfeffer, 1906), but no satisfactory data as to the mechanism involved were forthcoming until von Briicke (1848) discovered that, following stimulation, a rapid loss of water from the turgid cells of the pulvinus-i.e., the swollen tissue occurring at the base of each petiole and each leafletoccurs in such a way as to cause collapse of the supporting structures. Recently Bose (1926) has pointed out that following stimulation an active contraction 1 Received for publication June 7, 1934. of the protoplasts occurs in Loth halves of the pulvinus, though one half is far more active than the other.…”
Section: Leaf-lviove:ments Of Mimosa Pudica In Relationmentioning
confidence: 99%
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“…The time is long past that endogenous circadian rhythms were themselves considered the product of learning. Pfeffer (1907) still viewed endogenous oscillations as "Nachschwingungen" or "after-oscillations," induced by prior exposure to external periodicity. That notion was finally laid to rest when Aschoff showed in the 1950s that no prior exposure to an LD cycle was needed: Chickens raised from the egg in constant light (LL; Aschoff and Meyer-Lohmann, 1954), and mice raised even for seven generations in LL (Aschoff, 1955), still developed endogenous circadian rhythmicity.…”
Section: Zoological Laboratory University Of Groningen Haren the Nmentioning
confidence: 99%