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PubMed · 9906580

Evolution of bioconvective patterns in variable gravity.

D A Noever
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Abstract

Measurements are reported of the evolution of bioconvective patterns in shallow, dense cultures of microorganisms subjected to varying gravity. Various statistical properties of this random, quasi-two-dimensional structure have been found: Aboav's law is obeyed, the average vertex angles follow predictions for regular polygons, and the area of a pattern varies linearly with its number of sides. As gravity varies between 1 g and 1.8g (g = 9.8 m s-1), these statistical properties continue to hold despite a tripling of the number of polygons and a reduced average polygon dimension by a third. This work compares with experiments on soap foams, Langmuir monolayer foams, metal grains, and simulations.

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AnimalsBiophysical PhenomenaBiophysicsConvectionEukaryotaGravitationHypergravityMaleModels, StatisticalMotor ActivitySpace FlightSpermatozoaSwimmingTemperatureTetrahymena pyriformisViscosityWeightlessnessComparative StudyJournal Article

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D A Noever. 1991-10-15. Evolution of bioconvective patterns in variable gravity.. https://doi.org/10.1103/physreva.44.5279

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