Summary
Changes in light absorption during nerve excitation (absorption responses) were detected from the crab leg nerve, the rabbit vagus, and the rat superior cervical ganglion (SCG) stained with a merocyanine-rhodanine. Dependences of the responses on the wavelength and polarization of the incident light (absorption spectra) showed characteristic features with the respective nerves. In the crab nerve, the pattern of response spectra was precisely analyzed based on the previously proposed scheme, which included the shift of absorption bands and the statistical reorientation of absorption oscillators of the dye molecules in the membrane matrix during nerve excitation. Different patterns of the response spectra between the crab nerve and the rabbit vagus suggested that distinct physicochemical environments of the dye occurred in these two classes of membranes. On the other hand, the characteristic pattern that arose in the rat SCG was explained by its morphological form, that is, unlike those in a bundle of axons, the membrane elements in the ganglion were randomly oriented with respect to the direction of the light polarization.
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Batzri, S., Korn, E.D. 1973. Single bilayer liposomes prepared without sonication.Biochim. Biophys. Acta 298:1015
Conti, F., Fioravanti, R., Malerba, F., Wanke, E. 1974. A comparative analysis of extrinsic fluorescence in nerve membranes and lipid bilayers.Biophys. Struct. Mechan. 1:27
Cohen, L.V., Salzberg, V.M. 1978. Optical measurement of membrane potential.Rev. Physiol. Biochem. Pharmacol. 83:35
Dragsten, P.R., Salzberg, V.M. 1978. Mechanism of the membrane potential sensitivity of the fluorescent membrane probe merocyanine 540.Biochemistry 17:5228
Emerson, E.S., Conlin, M.A., Rosenoff, A.E., Norland, K.S., Rodriguez, H., Chin, D., Bird, G.R. 1967. The geometrical structure and absorption spectrum of a cyanine dye aggregate.J. Phys. Chem. 71:2396
Grinvald, A., Salzberg, V.M., Cohen, L.B., Kamino, K., Waggoner, A.S., Wang, C.H., Ti, D. 1976. Simultaneous recording from twelve neurons in the suprasophageal ganglion ofBalanus nubilus using a new potential sensitive dye.Biol. Bull. Woods Hole 151:411
Ross, W.N., Reichart, L.F. 1977. Species-specific effects on the optical signal of voltage-sensitive dyes.J. Gen. Physiol. 70:15a
Ross, W.N., Salzberg, B.M., Cohen, L.B., Davila, H.V. 1974. A large change in axon absorption during the action potential.Biophys. J. 14:983
Ross, W.N., Salzberg, V.M., Cohen, L.B., Grinvald, A., Davila, H.V., Waggoner, A.S., Wang, C.H. 1977. Changes in absorption, fluorescence, dichroism, and birefringence in stained giant axons: Optical measurement of membrane potential.J. Membrane Biol. 33:141
salzberg, V.M., Cohen, L.B., Ross, W.N., Waggoner, A.S., Wang, C.H. 1976. New and more sensitive molecular probes of membrane potential: Simultaneous optical recordings from several cells in the central nervous system of the leech.Biophys. J. 16:23a
Salzberg, V.M., Grinvald, A., Cohen, L.B., Davila, H.V., Ross, W.N. 1977. Optical recording of neuronal activity in an invertebrate central nervous system: Monitoring of several neurons.J. Neurophysiol. 40:1281
Sheppard, S.E. 1942. The effects of environment and aggregation on the absorption spectra of dyes.Rev. Mod. Phys. 14:303
Tasaki, I., Warashina, A. 1975. Changes in light absorption, emission and energy transfer produced by nerves labeled with fluorescent probes.Proc. Jpn. Acad. 51:604
Tasaki, I., Warashina, A. 1976a. Fast and slow rotation of dye molecules in squid axon membrane during excitation.Proc. Jpn. Acad. 52:37
Tasaki, I., Warashina, A. 1976b. Dye-membrane interaction and its changes during nerve excitation.Photochem. Photobiol. 24:191
Warashina, A. 1979. Spectral analyses of absorption changes associated with nerve excitation in dye-stained crab nerve.Biochim. Biophys. Acta 554:51
Warashina, A., Tasaki, I. 1975. Evidence for rotation of dye molecules in membrane macromolecules associated with nerve excitation.Proc. Jpn. Acad. 51:610
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Warashina, A. Further studies on absorption changes arising in dye-stained nerves during excitation. J. Membrain Biol. 53, 207–213 (1980). https://doi.org/10.1007/BF01868826
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DOI: https://doi.org/10.1007/BF01868826