Transient Turing Structures in a Gradient-Free Closed System
1993; American Association for the Advancement of Science; Volume: 259; Issue: 5094 Linguagem: Inglês
10.1126/science.259.5094.493
ISSN1095-9203
AutoresIstván Lengyel, Sándor Kádár, Irving R. Epstein,
Tópico(s)Photoreceptor and optogenetics research
ResumoTransient, symmetry-breaking, spatial patterns were obtained in a closed, gradient-free, aqueous medium containing chlorine dioxide, iodine, malonic acid, and starch at 4 degrees to 5 degrees C. The conditions under which these Turing-type structures appear can be accurately predicted from a simple mathematical model of the system. The patterns, which consist of spots, stripes, or both spots and stripes, require about 25 minutes to form and remain stationary for 10 to 30 minutes.
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