Cellular Communication through Light

" The study was performed with a cellular organism, the ciliate Paramecium caudatum. Mutual exposure of cell populations occurred under conditions of darkness and separation with cuvettes (vials) allowing photon but not molecule transfer. The cell populations were separated either with glass allowing photon transmission from 340 nm to longer waves, or quartz being transmittable from 150 nm, i.e. from UV-light to longer waves. Even through glass, the cells affected cell division and energy uptake in neighboring cell populations. Depending on the cuvette material and the number of cells involved, these effects were positive or negative. Also, while paired populations with lower growth rates grew uncorrelated, growth of the better growing populations was correlated. As there were significant differences when separating the populations with glass or quartz, it is suggested that the cell populations use two (or more) frequencies for cellular information transfer, which influences at least energy uptake, cell division rate and growth correlation." {Credits 1}

{Credits 1} 🎪 Fels D. (2009). Cellular communication through light. PloS one, 4(4), e5086. doi:10.1371/journal.pone.0005086. © 2009 Daniel Fels. This is an open-access article distributed under the terms of the Creative Commons Attribution License.

Last modified on 03-Oct-18

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