Abstract
Illumination of a system consisting of a vertical tube containing an unstirred homogeneous suspension of thylakoids in an imposed linear concentration gradient of an electron acceptor, 2,6-dichloroindophenol, gave rise to a one-dimensional banded pattern of the acceptor that evolved in a time-dependent manner. The spatial pattern was obtained only within certain parameters of the dichloroindophenol gradient and with certain concentrations of thylakoids. Various numbers of bands were obtained by varying the gradient parameters, the thylakoid concentration, or both. Pattern formation was reaction-dependent since inhibition of the water-splitting system, either by a physical (heating) or by a chemical (methylamine) method, resulted in abolition of the spatial periodicity. Obtaining the self-organized redox transition of dichloroindophenol in a gelled medium suggests that pattern formation in this system could be explained mainly by a reaction-diffusion mechanism.
Keywords: reaction-diffusion, photosynthesis
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- Breton J., Thomas D., Hervagault J. F. Dissipative structures in a two-cell system: Numerical and experimental approaches. Proc Natl Acad Sci U S A. 1986 Feb;83(3):551–555. doi: 10.1073/pnas.83.3.551. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Breton J., Thomas D., Hervagault J. F. Experimental evidence for multistability in a photobiochemical system. Eur J Biochem. 1985 Oct 15;152(2):509–514. doi: 10.1111/j.1432-1033.1985.tb09225.x. [DOI] [PubMed] [Google Scholar]
- Dilley R. A. Ion transport (H+, K+, Mg2+ exchange phenomena). Methods Enzymol. 1972;24:68–74. doi: 10.1016/0076-6879(72)24055-1. [DOI] [PubMed] [Google Scholar]
- Gurdon J. B. Molecular biology of development. Introductory comments. Cold Spring Harb Symp Quant Biol. 1985;50:1–10. doi: 10.1101/sqb.1985.050.01.003. [DOI] [PubMed] [Google Scholar]
- Holmuhamedov E. L. Oscillating dissipative structures in mitochondrial suspensions. Eur J Biochem. 1986 Aug 1;158(3):543–546. doi: 10.1111/j.1432-1033.1986.tb09788.x. [DOI] [PubMed] [Google Scholar]
- Kopell N., Howard L. N. Horizontal bands in the belousov reaction. Science. 1973 Jun 15;180(4091):1171–1173. doi: 10.1126/science.180.4091.1171. [DOI] [PubMed] [Google Scholar]
- Macdonald P. M., Struhl G. A molecular gradient in early Drosophila embryos and its role in specifying the body pattern. Nature. 1986 Dec 11;324(6097):537–545. doi: 10.1038/324537a0. [DOI] [PubMed] [Google Scholar]
- Müller S. C., Plesser T., Hess B. Three-dimensional representation of chemical gradients. Biophys Chem. 1987 May 9;26(2-3):357–365. doi: 10.1016/0301-4622(87)80035-2. [DOI] [PubMed] [Google Scholar]
- Thomasset B., Thomasset T., Vejux A., Jeanfils J., Barbotin J. N., Thomas D. Immobilized thylakoids in a cross-linked albumin matrix: effects of cations studied by electron microscopy, fluorescence emission, photoacoustic spectroscopy, and kinetic measurements. Plant Physiol. 1982 Sep;70(3):714–722. doi: 10.1104/pp.70.3.714. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Winfree A. T. Spiral waves of chemical activity. Science. 1972 Feb 11;175(4022):634–636. doi: 10.1126/science.175.4022.634. [DOI] [PubMed] [Google Scholar]
- Wolpert L. Positional information and the spatial pattern of cellular differentiation. J Theor Biol. 1969 Oct;25(1):1–47. doi: 10.1016/s0022-5193(69)80016-0. [DOI] [PubMed] [Google Scholar]
- Zaikin A. N., Zhabotinsky A. M. Concentration wave propagation in two-dimensional liquid-phase self-oscillating system. Nature. 1970 Feb 7;225(5232):535–537. doi: 10.1038/225535b0. [DOI] [PubMed] [Google Scholar]