How plant scientist Ralf Reski pursues molecular archeology using the moss Physcomitrella patens is described in the magazine Research & Discover of the University of Freiburg. Around 450 million years ago, plants rapidly spread on the very first continent, which increased the oxygen and reduced the carbon dioxide contents of the atmosphere, creating conditions that made human and animal life on land possible. The article introduces three scientific studies published in the renowned journals Nature Plants and Nature Communications. They explain the "inventions" of a protective outer layer and the simple stomata as well as the molecular mechanism responsible for the alternation of generations between sexual and asexual reproduction, which is typical for all land plants.
see: Research & Discover at University of Freiburg