The Culture Collection of Algae at Göttingen University (SAG): A Biological Resource for Biotechnological and Biodiversity Research

The SAG is one of the most comprehensive resources of microalgal cultures (www.epsag.uni-goettingen.de). It is supporting research in biotechnology and biodiversity through ex situ conservation of algae and expert knowledge on identifying and isolating. Multiple strains proven to represent the same microalgal species exhibit extensive genotypic diversity interesting for further exploitation. Cryopreservation is well suited to circumvent problems associated with perpetual maintenance, but needs optimization to ensure genetic stability. To ensure the SAG's reliability, primary goals are correctly identified strains as references for DNA sequence comparisons. Novel isolates from unusual terrestrial habitats worth further biotechnological exploitation are being developed.