Ion flux interaction with cytoplasmic streaming in branchlets of Chara australis
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چکیده
منابع مشابه
Cytoplasmic streaming in Chara corallina studied by laser light scattering.
An apparatus is described by means of which the power versus frequency spectrum of the photomultiplier current can be obtained for laser light scattered by streaming cytoplasm in the algal cell Chara corallina. A Doppler peak is noted in the spectrum which is abolished when cytoplasmic streaming is arrested by electrical stimulation. For 5 cells of Chara, this simple laser-Doppler velocimeter g...
متن کاملChara myosin and the energy of cytoplasmic streaming.
Recently, it was found that myosin generating very fast cytoplasmic streaming in Chara corallina has very high ATPase activity. To estimate the energy consumed by this myosin, its concentration in the internodal cells of C. corallina was determined by quantitative immunoblot. It was found that the concentration of Chara myosin was considerably high (200 nM) and the amount of ATP consumed by thi...
متن کاملUltrastructure of the endoplasmic factor responsible for cytoplasmic streaming in Chara internodal cells.
Previous investigators have proposed that cytoplasmic streaming in Chara internodal cells results from the interaction between an endoplasmic factor and fibrils composed of microfilaments in the stationary cortex. Using the internal perfusion technique, we confirmed the observation that organelles which had been attached to the fibrils by decreasing the internal concentration of ATP moved along...
متن کاملFluorescence studies on modes of cytochalasin B and phallotoxin action on cytoplasmic streaming in Chara
Various investigations have suggested that cytoplasmic streaming in characean algae is driven by interaction between subcortical actin bundles and endoplasmic myosin. To further test this hypothesis, we have perfused cytotoxic actin-binding drugs and fluorescent actin labels into the cytoplasm of streaming Chara cells. Confirming earlier work, we find that cytochalasin B (CB) reversibly inhibit...
متن کاملMeasurement of Cytoplasmic Streaming in Chara Corallina by Magnetic Resonance Velocimetry
Jan-Willem van de Meent, Andy J. Sederman, Lynn F. Gladden, and Raymond E. Goldstein Instituut-Lorentz/Leiden Institute of Physics, University of Leiden, Postbus 9506, 2300 RA, Leiden, NL Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, UK and Department of Chemical Engineering and Biotechnology, University of Cambridge, Pe...
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ژورنال
عنوان ژورنال: Journal of Experimental Botany
سال: 2004
ISSN: 1460-2431
DOI: 10.1093/jxb/erh256