Ahead of His Time: Wilhelm Pfeffer, Early Advances in Plant by Erwin Bunning, Hermut Wilhelm Pfeffer PDF

By Erwin Bunning, Hermut Wilhelm Pfeffer

ISBN-10: 0886291038

ISBN-13: 9780886291037

This biography examines the existence and paintings of Wilhelm Pfeffer (1845-1920), a pioneer of recent experimental biology who expected a lot during this box that's now taken without any consideration. The e-book indicates Pfeffer as a instructor and author with broad examine pursuits, incisive experimental abilities, and a questing brain. Dr H.Wilhelm Pfeffer, grandson of Wilhelm Pfeffer, offers the interpretation for this English variation.

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Additional info for Ahead of His Time: Wilhelm Pfeffer, Early Advances in Plant Biology

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That later researchers had great difficulty in making osmometers of the same quality is proof of his experimental skill. It took H. N. 19 Fig. 6 (See previous page) Diosmometer of Dutrochet. In the glass bulb is a sugar solution; in the surrounding container is water. A (semipermeable) pig's bladder separates the two solutions. " After H. Walter (cf. 5). Fig. 7 (See previous page) Osmometer (after Pfeffer's original drawing). Major components: The porous pot (z) which is about 46 mm high and the manometer (m).

Even so, the underlying cause remains unknown. " Today, we still must accept the statement by Sibaoka: "... "22 Recent studies give some interesting new leads. The basic flows of ions in plants have been analysed, and the results show a certain parallel with the results of the studies on the effect of stimuli in animal cells. This would seem to support the objections against Pfeffer's idea about a difference between plant movements and the movements of muscles. However, the modern ion flow studies deal with a different dimension than the one Pfeffer dealt with in his studies of molecular-sized plasma membranes.

This would seem to support the objections against Pfeffer's idea about a difference between plant movements and the movements of muscles. However, the modern ion flow studies deal with a different dimension than the one Pfeffer dealt with in his studies of molecular-sized plasma membranes. 36 5 THE PLASMA MEMBRANE — "THE GATE KEEPER IN THE SERVICE OF THE PROTOPLAST" a) Properties of the Plasma Membrane Many of Pfeffer's contemporaries did not understand the objectives for his Osmotische Untersuchungen [Osmotic Investigations] and his reasons for postulating a plasma membrane.

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Ahead of His Time: Wilhelm Pfeffer, Early Advances in Plant Biology by Erwin Bunning, Hermut Wilhelm Pfeffer


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