Effects of Activated Charcoal on Growth and Morphogenesis in Cell Cultures 

 -  Physiologia Plantarum , 34(4), p.306-308, 1975 .
<br/><br/> The effects of activated charcoal on growth and morphogenesis in plate cultures of different plant cells have been studied. It was shown that medium containing charcoal induced embryogenesis in cultures of Daucus earota in which embryo formation could not be brought about by omitting auxin from the medium. Charcoal-medium also induced abundant root formation in older cultures of Allitim cepa, which normally did not produce roots. The growth of cultures of Glycine max and Haplopappus graeilis was totally inhibited by charcoal. It is thought that activated charcoal removes substances from the medium, one of which might be auxin.