Spatial memory during the tropism of maize (Zea mays L.) coleoptiles

  title={Spatial memory during the tropism of maize (Zea mays L.) coleoptiles},
  author={Peter Nick and Ellen Schaefer},
Photo- or gravitropic stimulation of graminean coleoptiles involves the formation of putative tropistic transverse polarities. It had been postulated that these polarities can be extended by stabilization to developmentally active polarities. Such polarities are known from unicellular spores and zygotes of lower plants and regeneration experiments in dicotyledonous plants. In coleoptiles, photo- or gravitropic stimulation results in stability to counterstimulation of equal strength (with only… CONTINUE READING