Titlebook: Biochemistry of Sensory Functions; 25. Colloquium am 25 L. Jaenicke Conference proceedings 1974 Springer-Verlag Berlin · Heidelberg 1974 Bi

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Chemical Signal Transmission by Gamete Attractants in Brown AlgaeI wish to present a system that might be useful in studying chemotaxis and transmission of chemical signals. It is the occurrence and action of highly specific, volatile and very lipophilic hydrocarbon sex attractants formed by the unicellular female gametes of some seaweeds to attract the unicellular motile males for conjugation [1].

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Alexander Poppe,Norbert Stabenowsed of a protein, opsin, to which the 11-. isomer of retinal (retinaldehyde, vitamin A aldehyde) is attached as chromophore. In cattle and squid rhodopsin, the two visual pigments whose chemical composition has been examined most thoroughly, retinaldehyde forms a Schiff base (an aldimine) with the .

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Uwe Rieken,Volker Braunberger,Oliver Dr?geres of the cell membrane to the different ions. The membrane potentials are diffusion potentials. The light stimulus induces a transient change in permeability (conductivity) of the cell membrane which causes a voltage signal — the receptor potential. The ions are believed to pass the cell membrane .

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Kostentransparenz in der Supply Chainy bacteria has been recognized since the end of the 19th century, thanks to the pioneering work of ., ., and other biologists, the mechanisms involved are still almost entirely unknown. How do bacteria detect the attractants ? How is this sensed information translated into action; that is, how are t

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Kostentransparenz in der Supply Chainin, das Land zu besuchen, in dem ., ., ., . und viele andere legend?re Pers?nlichkeiten der Biochemie ihre Laboratorien hatten. Und es ist insbesondere stimulierend, da die gegenw?rtigen Beitr?ge Deutschlands zur Biochemie diese gute, feine Tradition fortsetzen.

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neue betriebswirtschaftliche forschung (nbf)f galactose transport in this organism is complicated by the existence of at least six transport systems with specificity for galactose (., 1971; . et al., 1968). This overlap made the design of selection procedures needed to obtain well defined mutants rather complex. Since no well characterized mu